National Cyber Awareness System
Vulnerability Summary for CVE-2009-1920
Original release date:09/08/2009
Last revised:08/21/2010
Source:
US-CERT/NIST
Overview
The JScript scripting engine 5.1, 5.6, 5.7, and 5.8 in JScript.dll in Microsoft Windows, as used in Internet Explorer, does not properly load decoded scripts into memory before execution, which allows remote attackers to execute arbitrary code via a crafted web site that triggers memory corruption, aka "JScript Remote Code Execution Vulnerability."
Impact
CVSS Severity (version 2.0):
Impact Subscore:
10.0
Exploitability Subscore:
8.6
CVSS Version 2 Metrics:
Access Vector: Network exploitable; Victim must voluntarily interact with attack mechanism
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type:Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service
References to Advisories, Solutions, and Tools
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US-CERT Technical Alert: TA09-251A
Name: TA09-251A
External Source: MS
Name: MS09-045
Type: Advisory; Patch Information
External Source: OVAL
Name: oval:org.mitre.oval:def:6316
References to Check Content
Identifier:oval:org.mitre.oval:def:6316
Check System:http://oval.mitre.org/XMLSchema/oval-definitions-5
