WinRAR ist eines jener Programme, das man einmal installiert und nur selten braucht und daher nicht updated.
Mit alten WinRARs gibt es ein Sicherheitsrisiko, und man sollte sich die neueste Version runtersaugen.
======================================================================
Secunia Research 11/10/2005
- WinRAR Format String and Buffer Overflow Vulnerabilities -
======================================================================
Table of Contents
Affected Software....................................................1
Severity.............................................................2
Description of Vulnerability.........................................3
Solution.............................................................4
Time Table...........................................................5
Credits..............................................................6
References...........................................................7
About Secunia........................................................8
Verification.........................................................9
======================================================================
1) Affected Software
WinRAR 3.50
Prior versions may also be affected.
======================================================================
2) Severity
Rating: Moderately Critical
Impact: System access
Where: Remote
======================================================================
3) Description of Vulnerability
Secunia Research has discovered two vulnerabilities in WinRAR, which
can be exploited by malicious people to compromise a user's system.
1) A format string error exists when displaying a diagnostic error
message that informs the user of an invalid filename in an UUE/XXE
encoded file. This can be exploited to execute arbitrary code when a
malicious UUE/XXE file is decoded.
2) A boundary error in UNACEV2.DLL can be exploited to cause a
stack-based buffer overflow. This allows arbitrary code execution when
a malicious ACE archive containing a file with an overly long file
name is extracted.
Vulnerability #2 is related to:
http://secunia.com/SA14359
======================================================================
4) Solution
Update to version 3.51.
======================================================================
5) Time Table
30/09/2005 - Initial vendor notification.
30/09/2005 - Initial vendor reply.
10/10/2005 - Vendor released fixed version.
11/10/2005 - Public disclosure.
======================================================================
6) Credits
Discovered by Tan Chew Keong, Secunia Research.
======================================================================
7) References
RARLAB:
http://www.rarlabs.com/rarnew.htm
======================================================================
8) About Secunia
Secunia collects, validates, assesses, and writes advisories regarding
all the latest software vulnerabilities disclosed to the public. These
advisories are gathered in a publicly available database at the
Secunia website:
http://secunia.com/
Secunia offers services to our customers enabling them to receive all
relevant vulnerability information to their specific system
configuration.
Secunia offers a FREE mailing list called Secunia Security Advisories:
http://secunia.com/secunia_security_advisories/
======================================================================
9) Verification
Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2005-53/advisory/
Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/
======================================================================
)