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Moderately critical

Microsoft Windows Active Directory Two Vulnerabilities

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Description


Two vulnerabilities have been reported in Windows Active Directory, which can be exploited by malicious users and malicious people to cause a DoS (Denial of Service) or compromise a vulnerable system.

1) A boundary error within the handling of the number of convertible attributes in LDAP requests can be exploited to cause a buffer overflow via a specially crafted request.

Successful exploitation causes a DoS and may allow execution of arbitrary code, but requires valid logon credentials on Windows Server 2003.

2) An error exists in the handling of LDAP requests containing the ASN.1 type 0x08. This can be exploited to cause the service to temporarily stop responding by sending a specially crafted LDAP request.


Solution:
Apply patches.

Further details available to Secunia VIM customers

Provided and/or discovered by:
1) Neel Mehta, IBM Internet Security Systems X-Force.
2) The vendor credits Peter Winter-Smith, NGSSoftware.

Original Advisory:
MS07-039 (KB926122):
http://www.microsoft.com/technet/security/Bulletin/MS07-039.mspx

IBM ISS X-Force:
http://www.iss.net/threats/267.html

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Microsoft Windows Active Directory Two Vulnerabilities

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