MS11-031: Vulnerability in JScript and VBScript Scripting Engines Could Allow Remote Code Execution (2514666)

high Nessus Plugin ID 53388
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

Arbitrary code can be executed on the remote host through the installed JScript and VBScript scripting engines.

Description

The installed version of the JScript and VBScript scripting engines contains an integer overflow vulnerability that can occur when the scripting engines process a script in a web page and attempt to reallocate memory while decoding the script.

If an attacker can trick a user on the affected system into visiting a malicious website, this issue could be leveraged to execute arbitrary code subject to the user's privileges.

Solution

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

See Also

https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2011/ms11-031

Plugin Details

Severity: High

ID: 53388

File Name: smb_nt_ms11-031.nasl

Version: 1.18

Type: local

Agent: windows

Published: 4/13/2011

Updated: 11/15/2018

Dependencies: smb_hotfixes.nasl, ms_bulletin_checks_possible.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 9.3

Temporal Score: 6.9

Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C

Temporal Vector: E:U/RL:OF/RC: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: 4/12/2011

Vulnerability Publication Date: 4/12/2011

Reference Information

CVE: CVE-2011-0663

BID: 47249

MSFT: MS11-031

MSKB: 2510531, 2510581, 2510587