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Netsikker nu! 2008
 
Xfce Terminal "Open Link" Command Injection Security Issue
Secunia Advisory: SA26037
Release Date: 2007-07-12
Last Update: 2007-07-19
Popularity: 5,587 views

Critical:
Not critical
Impact: Security Bypass
Where: From remote
Solution Status: Unpatched

Software:Xfce Terminal 0.x

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CVE reference:CVE-2007-3770


Description:
Lasse Kärkkäinen has reported a security issue in Xfce Terminal, which can be exploited by malicious people to inject shell commands.

The "terminal_helper_execute()" function in terminal/terminal.c uses "/bin/sh -c" to spawn the browser process. This can be used to disclose sensitive information or execute shell commands by e.g. tricking a user into opening a malicious link using the "Open Link" functionality.

The security issue is confirmed in version 0.2.6 for Fedora Core 6 and Mozilla Firefox as default browser. Other versions may also be affected.

Solution:
Do not open malicious URLs.

Provided and/or discovered by:
Lasse Kärkkäinen

Changelog:
2007-07-19: Added CVE reference.

Original Advisory:
http://bugs.gentoo.org/show_bug.cgi?id=184886


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