REDHAT-BUG-552483
First published: Tue Jan 05 2010(Updated: )
On 26C3, Fabian Yamaguchi presented a directory traversal flaw in libpurple MSN protocol implementation. The flaw can be used by the remote attacker to download arbitrary file readable by the user running instant messenger using libpurple (such as pidgin) from the victim's computer via MSN emoticon / smiley download request. More details in Fabian's presentation: <a href="http://events.ccc.de/congress/2009/Fahrplan/events/3596.en.html">http://events.ccc.de/congress/2009/Fahrplan/events/3596.en.html</a> <a href="http://events.ccc.de/congress/2009/Fahrplan/attachments/1483_26c3_ipv4_fuckups.pdf">http://events.ccc.de/congress/2009/Fahrplan/attachments/1483_26c3_ipv4_fuckups.pdf</a> (slides 10-22) Upstream fix: <a href="http://d.pidgin.im/viewmtn/revision/info/c64a1adc8bda2b4aeaae1f273541afbc4f71b810">http://d.pidgin.im/viewmtn/revision/info/c64a1adc8bda2b4aeaae1f273541afbc4f71b810</a> which depends on the other two commits: <a href="http://d.pidgin.im/viewmtn/revision/info/4be2df4f72bd8a55cdae7f2554b73342a497c92f">http://d.pidgin.im/viewmtn/revision/info/4be2df4f72bd8a55cdae7f2554b73342a497c92f</a> <a href="http://d.pidgin.im/viewmtn/revision/info/3d02401cf232459fc80c0837d31e05fae7ae5467">http://d.pidgin.im/viewmtn/revision/info/3d02401cf232459fc80c0837d31e05fae7ae5467</a> References: <a href="http://thread.gmane.org/gmane.comp.security.oss.general/2462">http://thread.gmane.org/gmane.comp.security.oss.general/2462</a> Mitigations: Remove ~/.purple/custom_smiley/ directory if it exists. The directory is not created by default and is created when first custom smiley is defined.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Libpurple |
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Reference Links
- http://events.ccc.de/congress/2009/Fahrplan/events/3596.en.html
- http://events.ccc.de/congress/2009/Fahrplan/attachments/1483_26c3_ipv4_fuckups.pdf
- http://d.pidgin.im/viewmtn/revision/info/c64a1adc8bda2b4aeaae1f273541afbc4f71b810
- http://d.pidgin.im/viewmtn/revision/info/4be2df4f72bd8a55cdae7f2554b73342a497c92f
- http://d.pidgin.im/viewmtn/revision/info/3d02401cf232459fc80c0837d31e05fae7ae5467
- http://thread.gmane.org/gmane.comp.security.oss.general/2462
- https://rhn.redhat.com/errata/RHSA-2010-0044.html
- https://bugzilla.redhat.com/show_bug.cgi?id=552483
Frequently Asked Questions
What is the severity of REDHAT-BUG-552483?
The severity of REDHAT-BUG-552483 is considered high due to its potential for remote exploitation and arbitrary file access.
How do I fix REDHAT-BUG-552483?
To fix REDHAT-BUG-552483, update to the latest version of libpurple or Pidgin where the vulnerability has been patched.
What type of vulnerability is REDHAT-BUG-552483?
REDHAT-BUG-552483 is a directory traversal flaw in the MSN protocol implementation of libpurple.
Who is affected by REDHAT-BUG-552483?
Anyone using the affected versions of libpurple or Pidgin for instant messaging could be impacted by REDHAT-BUG-552483.
What is the potential impact of REDHAT-BUG-552483?
The potential impact of REDHAT-BUG-552483 includes unauthorized access to and download of sensitive files from the victim's computer.
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