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Family: Windows : Microsoft Bulletins --> Category: infos

Flaw in SMB Signing Could Enable Group Policy to be Modified (329170) Vulnerability Scan

Vulnerability Scan Summary
Checks for MS Hotfix 329170

Detailed Explanation for this Vulnerability Test

Synopsis :

It is possible to send unsigned SMB packets.

Description :

The remote version of Windows contains a flaw in the SMB signing
implementation. SMB signing is used to sign each packets sent
between a client and a server to protect them against man in the
middle attacks.
If the Domain policy is configured to force usage of SMB signing
it is possible for a possible hacker to downgrade the communication to
disable SMB signing and try to launch man in the middle attacks.

Solution :

Microsoft has released a set of patches for Windows XP and 2000 :

Threat Level:

Medium / CVSS Base Score : 6

Click HERE for more information and discussions on this network vulnerability scan.


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