Microsoft Security Bulletin MS05-004:
ASP.NET Path Validation Vulnerability (887219)
Bulletin URL:
<http://www.microsoft.com/technet/security/Bulletin/MS05-004.mspx>
Reason for Revision: Bulletin 'Caveats' section has been updated to document
known issues that customers may experience when installing the available
security updates.
Version Number: 1.2
Issued Date: Tuesday, February 08, 2005
Revision Date: Wednesday, March 16, 2005
Impact of Vulnerability: Information Disclosure, possible Elevation of Privilege
Maximum Severity Rating: Important
Patch(es) Replaced: None.
Caveats: Microsoft Knowledge Base Article 887219 documents the currently known
issues that customers may experience when they install this security update.
The article also documents recommended solutions for these issues. For more
information, see Microsoft Knowledge Base Article 887219.
Tested Software:
Affected Software:
------------------
* Microsoft .NET Framework 1.0
Affected Components:
--------------------
* ASP.NET
Technical Description:
----------------------
* Path Validation Vulnerability - CAN-2004-0847. A canonicalization
vulnerability exists in ASP.NET that could allow an attacker to bypass the
security of an ASP.NET Web site and gain unauthorized access. An attacker who
successfully exploited this vulnerability could take a variety of actions,
depending on the specific contents of the website.
Revision History:
-----------------
* v1.0 - 2/8/2005: Bulletin published
* v1.1 - 2/15/2005: Bulletin updated to include Knowledge Base Article numbers
for each individual download under Affected Products.
* v1.2 - 3/16/2005: Bulletin 'Caveats' section has been updated to document
known issues that customers may experience when installing the available
security updates.
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Cheers,
Russ Cooper - Senior Scientist - Cybertrust/NTBugtraq Editor
--
NTBugtraq Editor's Note:
Most viruses these days use spoofed email addresses. As such, using an
Anti-Virus product which automatically notifies the perceived sender of a
message it believes is infected may well cause more harm than good. Someone who
did not actually send you a virus may receive the notification and scramble
their support staff to find an infection which never existed in the first
place. Suggest such notifications be disabled by whomever is responsible for
your AV, or at least that the idea is considered.
--
