================================================== ====================
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:
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/
================================================== ====================
Ответить с цитированием
Сообщение от [n0ns3ns3]
