Detections
Analytics
MS11-013: Vulnerabilities in Kerberos Could Allow Elevation of Privilege (2496930)
high Nessus Plugin ID 51913
Language:
Synopsis
The remote implementation of Kerberos is affected by one or more vulnerabilities.Description
The implementation of Kerberos on the remote Windows host is affected by one or more vulnerabilities :- Microsoft's Kerberos implementation uses a weak hashing mechanism, which can allow for certain aspects of a Kerberos service ticket to be forged. Note that this is not exploitable on domains where the domain controllers are running Windows Server 2008 or Windows Server 2008 R2. (CVE-2011-0043)
- An attacker can force a downgrade in Kerberos communication between a client and server to a weaker encryption standard than negotiated originally by means of a man-in-the-middle attack because Windows does not correctly enforce the stronger default encryption standards included in Windows 7 and Windows Server 2008 R2. Note that this issue only affects implementations of Kerberos on Windows 7 and Windows Server 2008 R2.
(CVE-2011-0091)
Solution
Microsoft has released a set of patches for Windows XP, 2003, 7, and 2008 R2.See Also
https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2011/ms11-013
Plugin Details
Severity: High
ID: 51913
File Name: smb_nt_ms11-013.nasl
Version: 1.17
Type: local
Agent: windows
Family: Windows : Microsoft Bulletins
Published: 2/8/2011
Updated: 11/15/2018
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
CVSS v2
Risk Factor: High
Base Score: 7.2
Temporal Score: 5.3
Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C
Vulnerability Information
CPE: cpe:/o:microsoft:windows
Required KB Items: SMB/MS_Bulletin_Checks/Possible
Exploit Ease: No known exploits are available
Patch Publication Date: 2/8/2011
Vulnerability Publication Date: 2/8/2011
Reference Information
CVE: CVE-2011-0043, CVE-2011-0091