Bitrix Site Manager Discloses Information to Remote Users and Permits Cross-Site Scripting Attacks
SecurityTracker Alert ID: 1016121|
SecurityTracker URL: http://securitytracker.com/id/1016121
CVE-2006-2476, CVE-2006-2477, CVE-2006-2478, CVE-2006-2479
(Links to External Site)
Updated: Sep 1 2009|
Original Entry Date: May 18 2006
Disclosure of authentication information, Disclosure of system information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information|
Exploit Included: Yes |
A vulnerability was reported in Bitrix Site Manager. A remote user can conduct cross-site scripting attacks. A remote user can view the updater log file.|
The administrative interface does not properly filter HTML code from user-supplied input before displaying the input. A remote user can create a specially crafted URL that, when loaded by a target user, will cause arbitrary scripting code to be executed by the target user's browser. The code will originate from the site running the Bitrix Site Manager software and will run in the security context of that site. As a result, the code will be able to access the target user's cookies (including authentication cookies), if any, associated with the site, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.
Also, the 'back_url' hidden field in the authentication form is not properly validated. A remote user can supply a specially crafted value as part of an HTTP POST request that, when submitted by the target user, will cause the system to redirect the target user to an arbitrary site.
A remote user can view the 'updater.log' file to obtain version information. A demonstration exploit URL is provided:
The update function does not authenticate the update server. A remote user that can conduct a DNS cache poisoning attack can cause the update function to connect to an arbitrary server.
Gogi The Georgian reported these vulnerabilities.
A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the Bitrix Site Manager software, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.|
A remote user can view the update log.
A remote user that can conduct DNS cache poisoning attacks can cause the updater function to connect to and communicate with an arbitrary site.
No solution was available at the time of this entry.|
Vendor URL: www.bitrixsoft.com/ (Links to External Site)
Authentication error, Configuration error, Input validation error|
|Underlying OS: Linux (Any), UNIX (Any), Windows (Any)|
Source Message Contents
Subject: [Full-disclosure] Multiple Vulns in Bitrix CMS|
Multiple Vulns in Bitrix CMS
Version The latest one (4.1.x)
Multiple vulnerabilities discovered in Bitrix CMS. A remote attacker can conduct XSS attacks and compromise vulnerable system.
1. A remote attacker can get information about version history and latest installed version of Bitrix CMS by viewing the /bitrix/updates/updater.log
2. XSS vulnerability exists in handling of redirects in the auth form (and possibly other forms) during HTTP POST request. Remote
user can set the back_url hidden field to remote site and redirect victim to a malicious Web page.
3. Script injection vulnerability exists in administrative interface in handling of HTML strings.
Ex: "><script>alert('XSS')</script> will be interpreted as "><script>alert('XSS') </script> and executed. (tested
with mozilla firefox)
4. Vulnerability exists in the Update functionality of Bitrix CMS. Remote attacker can poison DNS cache of victims system and force
it to connect to a malicious Web server. Bitrix update client does not even try to validate the server it connects to. A remote attacker
can get md5 hash of the Key product, detailed information about the system and install and later execute malicious PHP scripts.
Gogi The Georgian
Full-Disclosure - We believe in it.
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