Microsoft Internet Explorer 9 Jscript9.dll input validation

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

A vulnerability has been found in Microsoft Internet Explorer 9 (Web Browser) and classified as critical. Affected by this vulnerability is an unknown part in the library Jscript9.dll. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Microsoft Internet Explorer 9 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by accessing an object that was not properly initialized, aka "Jscript9.dll Remote Code Execution Vulnerability."

The issue has been introduced in 03/16/2010. The weakness was shared 10/11/2011 as MS11-081 as confirmed bulletin (Technet). It is possible to read the advisory at technet.microsoft.com. This vulnerability is known as CVE-2011-1998. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 574 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 56455 , which helps to determine the existence of the flaw in a target environment. The commercial vulnerability scanner Qualys is able to test this issue with plugin 100111 (Microsoft Internet Explorer Cumulative Security Update (MS11-081)).

Applying the patch MS11-081 is able to eliminate this problem. The bugfix is ready for download at technet.microsoft.com. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 11772.

The vulnerability is also documented in the databases at X-Force (70130) and Tenable (56455).

Productinfo

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Support

  • end of life

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 56455
Nessus File: 🔍
Nessus Risk: 🔍

OpenVAS ID: 901208
OpenVAS Name: Microsoft Internet Explorer Multiple Vulnerabilities (2586448)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: MS11-081
TippingPoint: 🔍
PaloAlto IPS: 🔍

Timelineinfo

03/16/2010 🔍
05/09/2011 +418 days 🔍
10/11/2011 +155 days 🔍
10/11/2011 +0 days 🔍
10/11/2011 +0 days 🔍
10/12/2011 +1 days 🔍
03/23/2015 +1258 days 🔍
11/23/2021 +2437 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS11-081
Status: Confirmed

CVE: CVE-2011-1998 (🔍)
OVAL: 🔍

X-Force: 70130
Vulnerability Center: 33526 - [MS11-081] Microsoft Internet Explorer 9 Jscript9.dll Remote Code Execution Vulnerability, Medium
SecurityFocus: 49963

Entryinfo

Created: 03/23/2015 16:50
Updated: 11/23/2021 15:39
Changes: 03/23/2015 16:50 (47), 04/07/2017 12:10 (21), 11/23/2021 15:27 (2), 11/23/2021 15:33 (7), 11/23/2021 15:39 (1)
Complete: 🔍
Cache ID: 3:948:103

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