Bug 452815 - (CVE-2008-2841) CVE-2008-2841 xchat: command execution when xchat is started from the browser
CVE-2008-2841 xchat: command execution when xchat is started from the browser
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
All Linux
low Severity low
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Assigned To: Red Hat Product Security
: Security
Depends On:
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Reported: 2008-06-25 05:14 EDT by Tomas Hoger
Modified: 2008-06-25 08:06 EDT (History)
3 users (show)

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Doc Type: Bug Fix
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Last Closed: 2008-06-25 08:06:07 EDT
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Description Tomas Hoger 2008-06-25 05:14:01 EDT
Common Vulnerabilities and Exposures assigned an identifier CVE-2008-2841 to the following vulnerability:

Argument injection vulnerability in XChat 2.8.7b and earlier on Windows, when Internet Explorer is used, allows remote attackers to execute arbitrary commands via the --command parameter in an ircs:// URI.

Comment 1 Tomas Hoger 2008-06-25 05:19:04 EDT
This seems to be IE flaw rather than xchat flaw, as this can be used to inject
additional command line arguments to any external protocol handler application.
 Firefox does have a irc:// protocol handler, but seems to escape / URL-encode
arguments passed to external program properly (as any sane browse should do).

Additionally, --command argument to xchat was only introduced recently.  It is
only supported in 2.8.6 currently only in Rawhide.  Versions of xchat in Fedora
8 and 9, and Red Hat Enterprise Linux 2.1, 3, 4 and 5 do not support --command
command line argument.
Comment 2 Kevin Kofler 2008-06-25 08:06:07 EDT
Window$-only exploit, does not affect any version of Fedora or RHEL.

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