MS11-056: Vulnerabilities in Windows Client/Server Run-time Subsystem Could Allow Elevation of Privilege (2507938)

Medium Nessus Plugin ID 55572


Users can elevate their privileges on the remote host.


The remote host allows elevation of privileges in its Windows Client/Server run-time subsystem (CSRSS). An attacker could exploit these vulnerabilities to run arbitrary code in kernel mode. The attacker must have valid login credentials and be able to log on locally in order to exploit these vulnerabilities.


Microsoft has released a set of patches for Windows XP, 2003, Vista, 2008, 7, and 2008 R2.

See Also

Plugin Details

Severity: Medium

ID: 55572

File Name: smb_nt_ms11-056.nasl

Version: $Revision: 1.12 $

Type: local

Agent: windows

Published: 2011/07/12

Modified: 2017/07/26

Dependencies: 13855, 57033

Risk Information

Risk Factor: Medium


Base Score: 6.2

Temporal Score: 5.1

Vector: CVSS2#AV:L/AC:H/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:F/RL:OF/RC:C

Vulnerability Information

CPE: cpe:/o:microsoft:windows

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2011/07/12

Vulnerability Publication Date: 2011/07/12

Exploitable With

Core Impact

Reference Information

CVE: CVE-2011-1281, CVE-2011-1282, CVE-2011-1283, CVE-2011-1284, CVE-2011-1870

BID: 48588, 48598, 48604, 48605, 48606

OSVDB: 73792, 73793, 73794, 73795, 73796

MSFT: MS11-056

MSKB: 2507938