HTTP header injection vulnerabilities arise when user-supplied data is copied into a response header in an unsafe way. If an attacker can inject newline characters into the header, then they can inject new HTTP headers and also, by injecting an empty line, break out of the headers into the message body and write arbitrary content into the application's response.
Various kinds of attack can be delivered via HTTP header injection vulnerabilities. Any attack that can be delivered via cross-site scripting can usually be delivered via header injection, because the attacker can construct a request which causes arbitrary JavaScript to appear within the response body. Further, it is sometimes possible to leverage header injection vulnerabilities to poison the cache of any proxy server via which users access the application. Here, an attacker sends a crafted request which results in a "split" response containing arbitrary content. If the proxy server can be manipulated to associate the injected response with another URL used within the application, then the attacker can perform a "stored" attack against this URL which will compromise other users who request that URL in future.
Issue remediation
If possible, applications should avoid copying user-controllable data into HTTP response headers. If this is unavoidable, then the data should be strictly validated to prevent header injection attacks. In most situations, it will be appropriate to allow only short alphanumeric strings to be copied into headers, and any other input should be rejected. At a minimum, input containing any characters with ASCII codes less than 0x20 should be rejected.
The value of the ProductCode request parameter is copied into the Location response header. The payload bf3db%0d%0a7006c31fe50 was submitted in the ProductCode parameter. This caused a response containing an injected HTTP header.
Request
GET /ProductDetails.asp?ProductCode=bf3db%0d%0a7006c31fe50 HTTP/1.1 Host: www.greystoneappliance.com Proxy-Connection: keep-alive Accept: application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5 User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/534.10 (KHTML, like Gecko) Chrome/8.0.552.224 Safari/534.10 Accept-Encoding: gzip,deflate,sdch Accept-Language: en-US,en;q=0.8 Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml">
<head> <script type="text/jav ...[SNIP]...
1.2. http://www.greystoneappliance.com/ProductDetails.asp [name of an arbitrarily supplied request parameter]previousnext
Summary
Severity:
High
Confidence:
Certain
Host:
http://www.greystoneappliance.com
Path:
/ProductDetails.asp
Issue detail
The name of an arbitrarily supplied request parameter is copied into the Location response header. The payload f24a0%0d%0a0a1188b9972 was submitted in the name of an arbitrarily supplied request parameter. This caused a response containing an injected HTTP header.
Request
GET /ProductDetails.asp?ProductCode=3757001&f24a0%0d%0a0a1188b9972=1 HTTP/1.1 Host: www.greystoneappliance.com Proxy-Connection: keep-alive Accept: application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5 User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/534.10 (KHTML, like Gecko) Chrome/8.0.552.224 Safari/534.10 Accept-Encoding: gzip,deflate,sdch Accept-Language: en-US,en;q=0.8 Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml">
<head> <script type="text/jav ...[SNIP]...
2. Cookie without HttpOnly flag setpreviousnext There are 4 instances of this issue:
If the HttpOnly attribute is set on a cookie, then the cookie's value cannot be read or set by client-side JavaScript. This measure can prevent certain client-side attacks, such as cross-site scripting, from trivially capturing the cookie's value via an injected script.
Issue remediation
There is usually no good reason not to set the HttpOnly flag on all cookies. Unless you specifically require legitimate client-side scripts within your application to read or set a cookie's value, you should set the HttpOnly flag by including this attribute within the relevant Set-cookie directive.
You should be aware that the restrictions imposed by the HttpOnly flag can potentially be circumvented in some circumstances, and that numerous other serious attacks can be delivered by client-side script injection, aside from simple cookie stealing.
The cookie appears to contain a session token, which may increase the risk associated with this issue. You should review the contents of the cookie to determine its function.
Request
GET /ProductDetails.asp?ProductCode=3757001 HTTP/1.1 Host: www.greystoneappliance.com Proxy-Connection: keep-alive Accept: application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5 User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/534.10 (KHTML, like Gecko) Chrome/8.0.552.224 Safari/534.10 Accept-Encoding: gzip,deflate,sdch Accept-Language: en-US,en;q=0.8 Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml">
The cookie does not appear to contain a session token, which may reduce the risk associated with this issue. You should review the contents of the cookie to determine its function.
Request
GET /Weber-7519-Genesis-E-and-S-Series-Rotisserie-p/7519.htm HTTP/1.1 Host: www.greystoneappliance.com Accept: */* Accept-Language: en User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0) Connection: close Cookie: History50=37380; __utmz=226848843.1293481474.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); ASPSESSIONIDSCCAQRAA=GBNHBNDAOADODDMBPCIFCPOJ; vsettings=; __utma=226848843.854362956.1293481474.1293481474.1293481474.1; __utmc=226848843; __utmb=226848843.1.10.1293481474;
Response
HTTP/1.1 200 OK Connection: close Date: Mon, 27 Dec 2010 23:18:21 GMT Server: Microsoft-IIS/6.0 X-Powered-By: ASP.NET Content-Length: 29362 Content-Type: text/html; Charset=UTF-8 Set-Cookie: vsettings=; expires=Thu, 22-Dec-2011 08:00:00 GMT; path=/ Set-Cookie: History50=37494V37380; expires=Tue, 11-Jan-2011 08:00:00 GMT; path=/ Cache-control: private Vary: Accept-Encoding, User-Agent
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml">
The cookie does not appear to contain a session token, which may reduce the risk associated with this issue. You should review the contents of the cookie to determine its function.
Request
GET /Weber-Genesis-E-320-Propane-Gas-Grill-Green-p/3757001.htm HTTP/1.1 Host: www.greystoneappliance.com Proxy-Connection: keep-alive Accept: application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5 User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/534.10 (KHTML, like Gecko) Chrome/8.0.552.224 Safari/534.10 Accept-Encoding: gzip,deflate,sdch Accept-Language: en-US,en;q=0.8 Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3 Cookie: ASPSESSIONIDSCCAQRAA=GBNHBNDAOADODDMBPCIFCPOJ; vsettings=
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml">
The cookie does not appear to contain a session token, which may reduce the risk associated with this issue. You should review the contents of the cookie to determine its function.
Request
GET /Weber-Premium-Grill-Cover-For-Genesis-E-EP-S-p/7553.htm HTTP/1.1 Host: www.greystoneappliance.com Accept: */* Accept-Language: en User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0) Connection: close Cookie: History50=37380; __utmz=226848843.1293481474.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); ASPSESSIONIDSCCAQRAA=GBNHBNDAOADODDMBPCIFCPOJ; vsettings=; __utma=226848843.854362956.1293481474.1293481474.1293481474.1; __utmc=226848843; __utmb=226848843.1.10.1293481474;
Response
HTTP/1.1 200 OK Connection: close Date: Mon, 27 Dec 2010 23:18:43 GMT Server: Microsoft-IIS/6.0 X-Powered-By: ASP.NET Content-Length: 29436 Content-Type: text/html; Charset=UTF-8 Set-Cookie: vsettings=; expires=Thu, 22-Dec-2011 08:00:00 GMT; path=/ Set-Cookie: History50=37496V37380; expires=Tue, 11-Jan-2011 08:00:00 GMT; path=/ Cache-control: private Vary: Accept-Encoding, User-Agent
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml">
<head> <script type="text/jav ...[SNIP]...
3. Cross-domain Referer leakagepreviousnext There are 3 instances of this issue:
When a web browser makes a request for a resource, it typically adds an HTTP header, called the "Referer" header, indicating the URL of the resource from which the request originated. This occurs in numerous situations, for example when a web page loads an image or script, or when a user clicks on a link or submits a form.
If the resource being requested resides on a different domain, then the Referer header is still generally included in the cross-domain request. If the originating URL contains any sensitive information within its query string, such as a session token, then this information will be transmitted to the other domain. If the other domain is not fully trusted by the application, then this may lead to a security compromise.
You should review the contents of the information being transmitted to other domains, and also determine whether those domains are fully trusted by the originating application.
Today's browsers may withhold the Referer header in some situations (for example, when loading a non-HTTPS resource from a page that was loaded over HTTPS, or when a Refresh directive is issued), but this behaviour should not be relied upon to protect the originating URL from disclosure.
Note also that if users can author content within the application then an attacker may be able to inject links referring to a domain they control in order to capture data from URLs used within the application.
Issue remediation
The application should never transmit any sensitive information within the URL query string. In addition to being leaked in the Referer header, such information may be logged in various locations and may be visible on-screen to untrusted parties.
GET /Articles.asp?ID=255 HTTP/1.1 Host: www.greystoneappliance.com Accept: */* Accept-Language: en User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0) Connection: close Cookie: History50=37380; __utmz=226848843.1293481474.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); ASPSESSIONIDSCCAQRAA=GBNHBNDAOADODDMBPCIFCPOJ; vsettings=; __utma=226848843.854362956.1293481474.1293481474.1293481474.1; __utmc=226848843; __utmb=226848843.1.10.1293481474;
Response
HTTP/1.1 200 OK Connection: close Date: Mon, 27 Dec 2010 23:19:21 GMT Server: Microsoft-IIS/6.0 X-Powered-By: ASP.NET Content-Length: 16387 Content-Type: text/html; Charset=UTF-8 Set-Cookie: vsettings=; expires=Thu, 22-Dec-2011 08:00:00 GMT; path=/ Cache-control: private Vary: Accept-Encoding, User-Agent
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml">
</script> ...[SNIP]... <!-- START SCANALERT CODE --> <a target="_blank" href="https://www.mcafeesecure.com/RatingVerify?ref=www.greystoneappliance.com"><img width="94" height="54" border="0" src="//images.scanalert.com/meter/www.greystoneappliance.com/13.gif" alt="McAfee SECURE sites help keep you safe from identity theft, credit card fraud, spyware, spam, viruses and online scams" oncontextmenu="alert('Copying Prohibited by Law - McAfee Secure is a Trademark of McAfee, Inc.'); return false;"></a> ...[SNIP]... <br><a target="_blank" href="https://www.bbb.org/boston/business-reviews/internet-shopping/greystone-appliance-in-saugus-ma-117498/#bbbonlineclick"><img alt="" src="https://www.socket2you.com/v/vspfiles/assets/images/BBBSealH1.gif" align="" border="0px"></a><br><a target="_BLANK" href="https://www.bbb.org/boston/business-reviews/internet-shopping/greystone-appliance-in-saugus-ma-117498/#bbbonlineclick" style="font-size: 10px; line-height: 1em; text-decoration: none; font-style: italic; font-family: verdana,arial,sans serif; color: rgb(0, 0, 0);">Click here for<br> ...[SNIP]... <br><a target="_blank" href="https://www.resellerratings.com/store/Socket_2_You"><img alt="" src="https://www.greystoneappliance.com/v/vspfiles/assets/images/reseller_ratings.jpg" align="" border="0px"> ...[SNIP]... <li><script src="https://seal.verisign.com/getseal?host_name=www.greystoneappliance.com&size=L&use_flash=YES&use_transparent=YES&lang=en">
</script> ...[SNIP]... <!-- START SCANALERT CODE --> <a target="_blank" href="https://www.mcafeesecure.com/RatingVerify?ref=www.greystoneappliance.com"><img width="94" height="54" border="0" src="//images.scanalert.com/meter/www.greystoneappliance.com/13.gif" alt="McAfee SECURE sites help keep you safe from identity theft, credit card fraud, spyware, spam, viruses and online scams" oncontextmenu="alert('Copying Prohibited by Law - McAfee Secure is a Trademark of McAfee, Inc.'); return false;"></a> ...[SNIP]... n the footer of the website. The link must be standard html, contain no javascript, and be approved by Volusion. Removing this link breaches the Volusion agreement. -->
GET /EmailaFriend.asp?ProductCode=3757001 HTTP/1.1 Host: www.greystoneappliance.com Accept: */* Accept-Language: en User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0) Connection: close Cookie: History50=37380; __utmz=226848843.1293481474.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); ASPSESSIONIDSCCAQRAA=GBNHBNDAOADODDMBPCIFCPOJ; vsettings=; __utma=226848843.854362956.1293481474.1293481474.1293481474.1; __utmc=226848843; __utmb=226848843.1.10.1293481474;
Response
HTTP/1.1 200 OK Connection: close Date: Mon, 27 Dec 2010 23:18:16 GMT Server: Microsoft-IIS/6.0 X-Powered-By: ASP.NET Content-Length: 16602 Content-Type: text/html; Charset=UTF-8 Set-Cookie: vsettings=; expires=Thu, 22-Dec-2011 08:00:00 GMT; path=/ Cache-control: private Vary: Accept-Encoding, User-Agent
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml">
</script> ...[SNIP]... <!-- START SCANALERT CODE --> <a target="_blank" href="https://www.mcafeesecure.com/RatingVerify?ref=www.greystoneappliance.com"><img width="94" height="54" border="0" src="//images.scanalert.com/meter/www.greystoneappliance.com/13.gif" alt="McAfee SECURE sites help keep you safe from identity theft, credit card fraud, spyware, spam, viruses and online scams" oncontextmenu="alert('Copying Prohibited by Law - McAfee Secure is a Trademark of McAfee, Inc.'); return false;"></a> ...[SNIP]... <br><a target="_blank" href="https://www.bbb.org/boston/business-reviews/internet-shopping/greystone-appliance-in-saugus-ma-117498/#bbbonlineclick"><img alt="" src="https://www.socket2you.com/v/vspfiles/assets/images/BBBSealH1.gif" align="" border="0px"></a><br><a target="_BLANK" href="https://www.bbb.org/boston/business-reviews/internet-shopping/greystone-appliance-in-saugus-ma-117498/#bbbonlineclick" style="font-size: 10px; line-height: 1em; text-decoration: none; font-style: italic; font-family: verdana,arial,sans serif; color: rgb(0, 0, 0);">Click here for<br> ...[SNIP]... <br><a target="_blank" href="https://www.resellerratings.com/store/Socket_2_You"><img alt="" src="https://www.greystoneappliance.com/v/vspfiles/assets/images/reseller_ratings.jpg" align="" border="0px"> ...[SNIP]... <li><script src="https://seal.verisign.com/getseal?host_name=www.greystoneappliance.com&size=L&use_flash=YES&use_transparent=YES&lang=en">
</script> ...[SNIP]... <!-- START SCANALERT CODE --> <a target="_blank" href="https://www.mcafeesecure.com/RatingVerify?ref=www.greystoneappliance.com"><img width="94" height="54" border="0" src="//images.scanalert.com/meter/www.greystoneappliance.com/13.gif" alt="McAfee SECURE sites help keep you safe from identity theft, credit card fraud, spyware, spam, viruses and online scams" oncontextmenu="alert('Copying Prohibited by Law - McAfee Secure is a Trademark of McAfee, Inc.'); return false;"></a> ...[SNIP]... n the footer of the website. The link must be standard html, contain no javascript, and be approved by Volusion. Removing this link breaches the Volusion agreement. -->
GET /help_answer.asp?ID=11 HTTP/1.1 Host: www.greystoneappliance.com Accept: */* Accept-Language: en User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0) Connection: close Cookie: History50=37380; __utmz=226848843.1293481474.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); ASPSESSIONIDSCCAQRAA=GBNHBNDAOADODDMBPCIFCPOJ; vsettings=; __utma=226848843.854362956.1293481474.1293481474.1293481474.1; __utmc=226848843; __utmb=226848843.1.10.1293481474;
Response
HTTP/1.1 200 OK Connection: close Date: Mon, 27 Dec 2010 23:20:16 GMT Server: Microsoft-IIS/6.0 X-Powered-By: ASP.NET Content-Length: 29999 Content-Type: text/html; Charset=UTF-8 Set-Cookie: vsettings=; expires=Thu, 22-Dec-2011 08:00:00 GMT; path=/ Cache-control: private Vary: Accept-Encoding, User-Agent
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml">
</script> ...[SNIP]... <!-- START SCANALERT CODE --> <a target="_blank" href="https://www.mcafeesecure.com/RatingVerify?ref=www.greystoneappliance.com"><img width="94" height="54" border="0" src="//images.scanalert.com/meter/www.greystoneappliance.com/13.gif" alt="McAfee SECURE sites help keep you safe from identity theft, credit card fraud, spyware, spam, viruses and online scams" oncontextmenu="alert('Copying Prohibited by Law - McAfee Secure is a Trademark of McAfee, Inc.'); return false;"></a> ...[SNIP]... <br><a target="_blank" href="https://www.bbb.org/boston/business-reviews/internet-shopping/greystone-appliance-in-saugus-ma-117498/#bbbonlineclick"><img alt="" src="https://www.socket2you.com/v/vspfiles/assets/images/BBBSealH1.gif" align="" border="0px"></a><br><a target="_BLANK" href="https://www.bbb.org/boston/business-reviews/internet-shopping/greystone-appliance-in-saugus-ma-117498/#bbbonlineclick" style="font-size: 10px; line-height: 1em; text-decoration: none; font-style: italic; font-family: verdana,arial,sans serif; color: rgb(0, 0, 0);">Click here for<br> ...[SNIP]... <br><a target="_blank" href="https://www.resellerratings.com/store/Socket_2_You"><img alt="" src="https://www.greystoneappliance.com/v/vspfiles/assets/images/reseller_ratings.jpg" align="" border="0px"> ...[SNIP]... <td>Please <a target="_blank" href="http://www.socket2you.com//SearchResults.asp?Cat=44">contact us</a> ...[SNIP]... <li><script src="https://seal.verisign.com/getseal?host_name=www.greystoneappliance.com&size=L&use_flash=YES&use_transparent=YES&lang=en">
</script> ...[SNIP]... <!-- START SCANALERT CODE --> <a target="_blank" href="https://www.mcafeesecure.com/RatingVerify?ref=www.greystoneappliance.com"><img width="94" height="54" border="0" src="//images.scanalert.com/meter/www.greystoneappliance.com/13.gif" alt="McAfee SECURE sites help keep you safe from identity theft, credit card fraud, spyware, spam, viruses and online scams" oncontextmenu="alert('Copying Prohibited by Law - McAfee Secure is a Trademark of McAfee, Inc.'); return false;"></a> ...[SNIP]... n the footer of the website. The link must be standard html, contain no javascript, and be approved by Volusion. Removing this link breaches the Volusion agreement. -->
When an application includes a script from an external domain, this script is executed by the browser within the security context of the invoking application. The script can therefore do anything that the application's own scripts can do, such as accessing application data and performing actions within the context of the current user.
If you include a script from an external domain, then you are trusting that domain with the data and functionality of your application, and you are trusting the domain's own security to prevent an attacker from modifying the script to perform malicious actions within your application.
Issue remediation
Scripts should not be included from untrusted domains. If you have a requirement which a third-party script appears to fulfil, then you should ideally copy the contents of that script onto your own domain and include it from there. If that is not possible (e.g. for licensing reasons) then you should consider reimplementing the script's functionality within your own code.
GET / HTTP/1.1 Host: www.greystoneappliance.com Accept: */* Accept-Language: en User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0) Connection: close Cookie: History50=37380; __utmz=226848843.1293481474.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); ASPSESSIONIDSCCAQRAA=GBNHBNDAOADODDMBPCIFCPOJ; vsettings=; __utma=226848843.854362956.1293481474.1293481474.1293481474.1; __utmc=226848843; __utmb=226848843.1.10.1293481474;
Response
HTTP/1.1 200 OK Connection: close Date: Mon, 27 Dec 2010 23:17:04 GMT Server: Microsoft-IIS/6.0 X-Powered-By: ASP.NET Content-Length: 26265 Content-Type: text/html; Charset=UTF-8 Set-Cookie: vsettings=; expires=Thu, 22-Dec-2011 08:00:00 GMT; path=/ Cache-control: private Vary: Accept-Encoding, User-Agent
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml">
GET /Appliances-s/64.htm HTTP/1.1 Host: www.greystoneappliance.com Accept: */* Accept-Language: en User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0) Connection: close Cookie: History50=37380; __utmz=226848843.1293481474.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); ASPSESSIONIDSCCAQRAA=GBNHBNDAOADODDMBPCIFCPOJ; vsettings=; __utma=226848843.854362956.1293481474.1293481474.1293481474.1; __utmc=226848843; __utmb=226848843.1.10.1293481474;
Response
HTTP/1.1 200 OK Connection: close Date: Mon, 27 Dec 2010 23:18:07 GMT Server: Microsoft-IIS/6.0 X-Powered-By: ASP.NET Content-Length: 47750 Content-Type: text/html; Charset=UTF-8 Set-Cookie: vsettings=; expires=Thu, 22-Dec-2011 08:00:00 GMT; path=/ Cache-control: private Vary: Accept-Encoding, User-Agent
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml">
GET /Articles.asp HTTP/1.1 Host: www.greystoneappliance.com Accept: */* Accept-Language: en User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0) Connection: close Cookie: History50=37380; __utmz=226848843.1293481474.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); ASPSESSIONIDSCCAQRAA=GBNHBNDAOADODDMBPCIFCPOJ; vsettings=; __utma=226848843.854362956.1293481474.1293481474.1293481474.1; __utmc=226848843; __utmb=226848843.1.10.1293481474;
Response
HTTP/1.1 200 OK Connection: close Date: Mon, 27 Dec 2010 23:19:18 GMT Server: Microsoft-IIS/6.0 X-Powered-By: ASP.NET Content-Length: 12578 Content-Type: text/html; Charset=UTF-8 Set-Cookie: vsettings=; expires=Thu, 22-Dec-2011 08:00:00 GMT; path=/ Cache-control: private Vary: Accept-Encoding, User-Agent
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml">
GET /EmailaFriend.asp HTTP/1.1 Host: www.greystoneappliance.com Accept: */* Accept-Language: en User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0) Connection: close Cookie: History50=37380; __utmz=226848843.1293481474.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); ASPSESSIONIDSCCAQRAA=GBNHBNDAOADODDMBPCIFCPOJ; vsettings=; __utma=226848843.854362956.1293481474.1293481474.1293481474.1; __utmc=226848843; __utmb=226848843.1.10.1293481474;
Response
HTTP/1.1 200 OK Connection: close Date: Mon, 27 Dec 2010 23:18:07 GMT Server: Microsoft-IIS/6.0 X-Powered-By: ASP.NET Content-Length: 8699 Content-Type: text/html; Charset=UTF-8 Set-Cookie: vsettings=; expires=Thu, 22-Dec-2011 08:00:00 GMT; path=/ Cache-control: private Vary: Accept-Encoding, User-Agent
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml">
GET /MailingList_subscribe.asp HTTP/1.1 Host: www.greystoneappliance.com Accept: */* Accept-Language: en User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0) Connection: close Cookie: History50=37380; __utmz=226848843.1293481474.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); ASPSESSIONIDSCCAQRAA=GBNHBNDAOADODDMBPCIFCPOJ; vsettings=; __utma=226848843.854362956.1293481474.1293481474.1293481474.1; __utmc=226848843; __utmb=226848843.1.10.1293481474;
Response
HTTP/1.1 200 OK Connection: close Date: Mon, 27 Dec 2010 23:18:04 GMT Server: Microsoft-IIS/6.0 X-Powered-By: ASP.NET Content-Length: 13498 Content-Type: text/html; Charset=UTF-8 Set-Cookie: vsettings=; expires=Thu, 22-Dec-2011 08:00:00 GMT; path=/ Cache-control: private Vary: Accept-Encoding, User-Agent
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml">
GET /PhotoGallery.asp HTTP/1.1 Host: www.greystoneappliance.com Accept: */* Accept-Language: en User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0) Connection: close Cookie: History50=37380; __utmz=226848843.1293481474.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); ASPSESSIONIDSCCAQRAA=GBNHBNDAOADODDMBPCIFCPOJ; vsettings=; __utma=226848843.854362956.1293481474.1293481474.1293481474.1; __utmc=226848843; __utmb=226848843.1.10.1293481474;
Response
HTTP/1.1 200 OK Connection: close Date: Mon, 27 Dec 2010 23:20:55 GMT Server: Microsoft-IIS/6.0 X-Powered-By: ASP.NET Content-Length: 8702 Content-Type: text/html; Charset=UTF-8 Set-Cookie: vsettings=; expires=Thu, 22-Dec-2011 08:00:00 GMT; path=/ Cache-control: private Vary: Accept-Encoding, User-Agent
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml">
GET /ProductDetails.asp HTTP/1.1 Host: www.greystoneappliance.com Accept: */* Accept-Language: en User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0) Connection: close Cookie: History50=37380; __utmz=226848843.1293481474.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); ASPSESSIONIDSCCAQRAA=GBNHBNDAOADODDMBPCIFCPOJ; vsettings=; __utma=226848843.854362956.1293481474.1293481474.1293481474.1; __utmc=226848843; __utmb=226848843.1.10.1293481474;
Response
HTTP/1.1 200 OK Connection: close Date: Mon, 27 Dec 2010 23:16:18 GMT Server: Microsoft-IIS/6.0 X-Powered-By: ASP.NET Content-Length: 12717 Content-Type: text/html; Charset=UTF-8 Set-Cookie: vsettings=; expires=Thu, 22-Dec-2011 08:00:00 GMT; path=/ Cache-control: private Vary: Accept-Encoding, User-Agent
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml">
GET /SearchResults.asp HTTP/1.1 Host: www.greystoneappliance.com Accept: */* Accept-Language: en User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0) Connection: close Cookie: History50=37380; __utmz=226848843.1293481474.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); ASPSESSIONIDSCCAQRAA=GBNHBNDAOADODDMBPCIFCPOJ; vsettings=; __utma=226848843.854362956.1293481474.1293481474.1293481474.1; __utmc=226848843; __utmb=226848843.1.10.1293481474;
Response
HTTP/1.1 200 OK Connection: close Date: Mon, 27 Dec 2010 23:17:43 GMT Server: Microsoft-IIS/6.0 X-Powered-By: ASP.NET Content-Length: 13842 Content-Type: text/html; Charset=UTF-8 Set-Cookie: vsettings=; expires=Thu, 22-Dec-2011 08:00:00 GMT; path=/ Cache-control: private Vary: Accept-Encoding, User-Agent
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml">
GET /Weber-7519-Genesis-E-and-S-Series-Rotisserie-p/7519.htm HTTP/1.1 Host: www.greystoneappliance.com Accept: */* Accept-Language: en User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0) Connection: close Cookie: History50=37380; __utmz=226848843.1293481474.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); ASPSESSIONIDSCCAQRAA=GBNHBNDAOADODDMBPCIFCPOJ; vsettings=; __utma=226848843.854362956.1293481474.1293481474.1293481474.1; __utmc=226848843; __utmb=226848843.1.10.1293481474;
Response
HTTP/1.1 200 OK Connection: close Date: Mon, 27 Dec 2010 23:18:21 GMT Server: Microsoft-IIS/6.0 X-Powered-By: ASP.NET Content-Length: 29362 Content-Type: text/html; Charset=UTF-8 Set-Cookie: vsettings=; expires=Thu, 22-Dec-2011 08:00:00 GMT; path=/ Set-Cookie: History50=37494V37380; expires=Tue, 11-Jan-2011 08:00:00 GMT; path=/ Cache-control: private Vary: Accept-Encoding, User-Agent
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml">
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml">
GET /Weber-Premium-Grill-Cover-For-Genesis-E-EP-S-p/7553.htm HTTP/1.1 Host: www.greystoneappliance.com Accept: */* Accept-Language: en User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0) Connection: close Cookie: History50=37380; __utmz=226848843.1293481474.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); ASPSESSIONIDSCCAQRAA=GBNHBNDAOADODDMBPCIFCPOJ; vsettings=; __utma=226848843.854362956.1293481474.1293481474.1293481474.1; __utmc=226848843; __utmb=226848843.1.10.1293481474;
Response
HTTP/1.1 200 OK Connection: close Date: Mon, 27 Dec 2010 23:18:43 GMT Server: Microsoft-IIS/6.0 X-Powered-By: ASP.NET Content-Length: 29436 Content-Type: text/html; Charset=UTF-8 Set-Cookie: vsettings=; expires=Thu, 22-Dec-2011 08:00:00 GMT; path=/ Set-Cookie: History50=37496V37380; expires=Tue, 11-Jan-2011 08:00:00 GMT; path=/ Cache-control: private Vary: Accept-Encoding, User-Agent
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml">
GET /aboutus.asp HTTP/1.1 Host: www.greystoneappliance.com Accept: */* Accept-Language: en User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0) Connection: close Cookie: History50=37380; __utmz=226848843.1293481474.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); ASPSESSIONIDSCCAQRAA=GBNHBNDAOADODDMBPCIFCPOJ; vsettings=; __utma=226848843.854362956.1293481474.1293481474.1293481474.1; __utmc=226848843; __utmb=226848843.1.10.1293481474;
Response
HTTP/1.1 200 OK Connection: close Date: Mon, 27 Dec 2010 23:19:06 GMT Server: Microsoft-IIS/6.0 X-Powered-By: ASP.NET Content-Length: 18384 Content-Type: text/html; Charset=UTF-8 Set-Cookie: vsettings=; expires=Thu, 22-Dec-2011 08:00:00 GMT; path=/ Cache-control: private Vary: Accept-Encoding, User-Agent
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml">
GET /cindex.asp HTTP/1.1 Host: www.greystoneappliance.com Accept: */* Accept-Language: en User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0) Connection: close Cookie: History50=37380; __utmz=226848843.1293481474.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); ASPSESSIONIDSCCAQRAA=GBNHBNDAOADODDMBPCIFCPOJ; vsettings=; __utma=226848843.854362956.1293481474.1293481474.1293481474.1; __utmc=226848843; __utmb=226848843.1.10.1293481474;
Response
HTTP/1.1 200 OK Connection: close Date: Mon, 27 Dec 2010 23:19:54 GMT Server: Microsoft-IIS/6.0 X-Powered-By: ASP.NET Content-Length: 24477 Content-Type: text/html; Charset=UTF-8 Set-Cookie: vsettings=; expires=Thu, 22-Dec-2011 08:00:00 GMT; path=/ Cache-control: private Vary: Accept-Encoding, User-Agent
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml">
GET /default.asp HTTP/1.1 Host: www.greystoneappliance.com Accept: */* Accept-Language: en User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0) Connection: close Cookie: History50=37380; __utmz=226848843.1293481474.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); ASPSESSIONIDSCCAQRAA=GBNHBNDAOADODDMBPCIFCPOJ; vsettings=; __utma=226848843.854362956.1293481474.1293481474.1293481474.1; __utmc=226848843; __utmb=226848843.1.10.1293481474;
Response
HTTP/1.1 200 OK Connection: close Date: Mon, 27 Dec 2010 23:16:46 GMT Server: Microsoft-IIS/6.0 X-Powered-By: ASP.NET Content-Length: 26265 Content-Type: text/html; Charset=UTF-8 Set-Cookie: vsettings=; expires=Thu, 22-Dec-2011 08:00:00 GMT; path=/ Cache-control: private Vary: Accept-Encoding, User-Agent
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml">
GET /help.asp HTTP/1.1 Host: www.greystoneappliance.com Accept: */* Accept-Language: en User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0) Connection: close Cookie: History50=37380; __utmz=226848843.1293481474.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); ASPSESSIONIDSCCAQRAA=GBNHBNDAOADODDMBPCIFCPOJ; vsettings=; __utma=226848843.854362956.1293481474.1293481474.1293481474.1; __utmc=226848843; __utmb=226848843.1.10.1293481474;
Response
HTTP/1.1 200 OK Connection: close Date: Mon, 27 Dec 2010 23:17:29 GMT Server: Microsoft-IIS/6.0 X-Powered-By: ASP.NET Content-Length: 23490 Content-Type: text/html; Charset=UTF-8 Set-Cookie: vsettings=; expires=Thu, 22-Dec-2011 08:00:00 GMT; path=/ Cache-control: private Vary: Accept-Encoding, User-Agent
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml">
GET /help_answer.asp HTTP/1.1 Host: www.greystoneappliance.com Accept: */* Accept-Language: en User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0) Connection: close Cookie: History50=37380; __utmz=226848843.1293481474.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); ASPSESSIONIDSCCAQRAA=GBNHBNDAOADODDMBPCIFCPOJ; vsettings=; __utma=226848843.854362956.1293481474.1293481474.1293481474.1; __utmc=226848843; __utmb=226848843.1.10.1293481474;
Response
HTTP/1.1 200 OK Connection: close Date: Mon, 27 Dec 2010 23:20:02 GMT Server: Microsoft-IIS/6.0 X-Powered-By: ASP.NET Content-Length: 12414 Content-Type: text/html; Charset=UTF-8 Set-Cookie: vsettings=; expires=Thu, 22-Dec-2011 08:00:00 GMT; path=/ Cache-control: private Vary: Accept-Encoding, User-Agent
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml">
GET /pindex.asp HTTP/1.1 Host: www.greystoneappliance.com Accept: */* Accept-Language: en User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0) Connection: close Cookie: History50=37380; __utmz=226848843.1293481474.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); ASPSESSIONIDSCCAQRAA=GBNHBNDAOADODDMBPCIFCPOJ; vsettings=; __utma=226848843.854362956.1293481474.1293481474.1293481474.1; __utmc=226848843; __utmb=226848843.1.10.1293481474;
Response
HTTP/1.1 200 OK Connection: close Date: Mon, 27 Dec 2010 23:19:44 GMT Server: Microsoft-IIS/6.0 X-Powered-By: ASP.NET Content-Length: 82147 Content-Type: text/html; Charset=UTF-8 Set-Cookie: vsettings=; expires=Thu, 22-Dec-2011 08:00:00 GMT; path=/ Cache-control: private Vary: Accept-Encoding, User-Agent
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml">
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml">
GET /terms.asp HTTP/1.1 Host: www.greystoneappliance.com Accept: */* Accept-Language: en User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0) Connection: close Cookie: History50=37380; __utmz=226848843.1293481474.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); ASPSESSIONIDSCCAQRAA=GBNHBNDAOADODDMBPCIFCPOJ; vsettings=; __utma=226848843.854362956.1293481474.1293481474.1293481474.1; __utmc=226848843; __utmb=226848843.1.10.1293481474;
Response
HTTP/1.1 200 OK Connection: close Date: Mon, 27 Dec 2010 23:20:38 GMT Server: Microsoft-IIS/6.0 X-Powered-By: ASP.NET Content-Length: 21912 Content-Type: text/html; Charset=UTF-8 Set-Cookie: vsettings=; expires=Thu, 22-Dec-2011 08:00:00 GMT; path=/ Cache-control: private Vary: Accept-Encoding, User-Agent
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml">
GET /terms_privacy.asp HTTP/1.1 Host: www.greystoneappliance.com Accept: */* Accept-Language: en User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0) Connection: close Cookie: History50=37380; __utmz=226848843.1293481474.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); ASPSESSIONIDSCCAQRAA=GBNHBNDAOADODDMBPCIFCPOJ; vsettings=; __utma=226848843.854362956.1293481474.1293481474.1293481474.1; __utmc=226848843; __utmb=226848843.1.10.1293481474;
Response
HTTP/1.1 200 OK Connection: close Date: Mon, 27 Dec 2010 23:20:35 GMT Server: Microsoft-IIS/6.0 X-Powered-By: ASP.NET Content-Length: 20097 Content-Type: text/html; Charset=UTF-8 Set-Cookie: vsettings=; expires=Thu, 22-Dec-2011 08:00:00 GMT; path=/ Cache-control: private Vary: Accept-Encoding, User-Agent
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml">
The following email address was disclosed in the response:
customerservice@greystoneappliance.com
Issue background
The presence of email addresses within application responses does not necessarily constitute a security vulnerability. Email addresses may appear intentionally within contact information, and many applications (such as web mail) include arbitrary third-party email addresses within their core content.
However, email addresses of developers and other individuals (whether appearing on-screen or hidden within page source) may disclose information that is useful to an attacker; for example, they may represent usernames that can be used at the application's login, and they may be used in social engineering attacks against the organisation's personnel. Unnecessary or excessive disclosure of email addresses may also lead to an increase in the volume of spam email received.
Issue remediation
You should review the email addresses being disclosed by the application, and consider removing any that are unnecessary, or replacing personal addresses with anonymous mailbox addresses (such as helpdesk@example.com).
Request
GET /Articles.asp?ID=255 HTTP/1.1 Host: www.greystoneappliance.com Accept: */* Accept-Language: en User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0) Connection: close Cookie: History50=37380; __utmz=226848843.1293481474.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); ASPSESSIONIDSCCAQRAA=GBNHBNDAOADODDMBPCIFCPOJ; vsettings=; __utma=226848843.854362956.1293481474.1293481474.1293481474.1; __utmc=226848843; __utmb=226848843.1.10.1293481474;
Response
HTTP/1.1 200 OK Connection: close Date: Mon, 27 Dec 2010 23:19:21 GMT Server: Microsoft-IIS/6.0 X-Powered-By: ASP.NET Content-Length: 16387 Content-Type: text/html; Charset=UTF-8 Set-Cookie: vsettings=; expires=Thu, 22-Dec-2011 08:00:00 GMT; path=/ Cache-control: private Vary: Accept-Encoding, User-Agent
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml">
The file robots.txt is used to give instructions to web robots, such as search engine crawlers, about locations within the web site which robots are allowed, or not allowed, to crawl and index.
The presence of the robots.txt does not in itself present any kind of security vulnerability. However, it is often used to identify restricted or private areas of a site's contents. The information in the file may therefore help an attacker to map out the site's contents, especially if some of the locations identified are not linked from elsewhere in the site. If the application relies on robots.txt to protect access to these areas, and does not enforce proper access control over them, then this presents a serious vulnerability.
Issue remediation
The robots.txt file is not itself a security threat, and its correct use can represent good practice for non-security reasons. You should not assume that all web robots will honour the file's instructions. Rather, assume that attackers will pay close attention to any locations identified in the file. Do not rely on robots.txt to provide any kind of protection over unauthorised access.
Request
GET /robots.txt HTTP/1.0 Host: www.greystoneappliance.com
Response
HTTP/1.1 200 OK Content-Length: 68 Content-Type: text/plain Last-Modified: Wed, 01 Dec 2010 04:59:07 GMT Accept-Ranges: bytes ETag: "9568bb7b1491cb1:3d17" Server: Microsoft-IIS/6.0 X-Powered-By: ASP.NET Date: Mon, 27 Dec 2010 23:07:33 GMT Connection: close
# robots.txt for search engines
User-agent:* Disallow: /cgi-bin/
Report generated by XSS.CX at Tue Dec 28 09:28:21 CST 2010.