TITLE:
Bitrix Site Manager Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA20143

VERIFY ADVISORY:
http://secunia.com/advisories/20143/

CRITICAL:
Less critical

IMPACT:
Cross Site Scripting, Exposure of sensitive information

WHERE:
>From remote

SOFTWARE:
Bitrix Site Manager 4.x
http://secunia.com/product/5249/

DESCRIPTION:
Gogi The Georgian has reported some vulnerabilities and a security
issue in Bitrix Site Manager, which can be exploited by malicious
users to conduct script insertion attacks, and by malicious people to
disclose certain sensitive information and conduct cross-site
scripting attacks.

1) Input passed to unspecified parameters in the administrative
section is not properly sanitised before being used. This can be
exploited to execute arbitrary HTML and script code in a user's
browsers session in context of an affected site when malicious data
is viewed.

Successful exploitation requires access to the administration
section.

2) Access to bitrix/updates/updater.log is not properly restricted.
This can be exploited to disclose sensitive information by accessing
the file directly.

3) Input passed to the "back_url" parameter is not properly sanitised
before being used. This can be exploited to redirect users to
malicious sites.

The vulnerabilities have been reported in the latest version. Other
versions may also be affected.

SOLUTION:
Grant only trusted users to a vulnerable system.

Filter malicious characters and character sequences in a webproxy.

Restrict access to /bitrix/updates/updater.log

PROVIDED AND/OR DISCOVERED BY:
Gogi The Georgian

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