Microsoft Internet Explorer 6/7/8/9 input validation

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

Summaryinfo

A vulnerability classified as critical has been found in Microsoft Internet Explorer 6/7/8/9. Affected by this issue is some unknown functionality. This manipulation causes input validation. This vulnerability appears as CVE-2011-1993. The attack may be initiated remotely. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Microsoft Internet Explorer 6/7/8/9 (Web Browser) and classified as critical. Affected by this vulnerability is some unknown processing. 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 6 through 9 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by accessing a deleted object, aka "Scroll Event Remote Code Execution Vulnerability."

The weakness was presented 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-2011-1993 since 05/09/2011. 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. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 56455 (MS11-081: Critical Cumulative Security Update for Internet Explorer (2586448)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 100111 (Microsoft Internet Explorer Cumulative Security Update (MS11-081)).

Upgrading eliminates this vulnerability. Applying the patch MS11-081 is able to eliminate this problem. The bugfix is ready for download at technet.microsoft.com. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 11746.

The vulnerability is also documented in the databases at X-Force (70130), Tenable (56455), SecurityFocus (BID 49947†), Secunia (SA46400†) and Vulnerability Center (SBV-33522†). See VDB-59002, VDB-59001, VDB-59000 and VDB-58999 for similar entries. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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

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

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Exploitinginfo

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

Physical: No
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 Name: MS11-081: Critical Cumulative Security Update for Internet Explorer (2586448)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

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

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: MS11-081
TippingPoint: 🔍
ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

05/09/2011 🔍
10/11/2011 +154 days 🔍
10/11/2011 +0 days 🔍
10/11/2011 +0 days 🔍
10/11/2011 +0 days 🔍
10/11/2011 +0 days 🔍
10/11/2011 +0 days 🔍
10/12/2011 +1 days 🔍
10/19/2011 +7 days 🔍
03/19/2021 +3439 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS11-081
Status: Confirmed

CVE: CVE-2011-1993 (🔍)
GCVE (CVE): GCVE-0-2011-1993
GCVE (VulDB): GCVE-100-4423

OVAL: 🔍

X-Force: 70130
SecurityFocus: 49947
Secunia: 46400 - Microsoft Internet Explorer Multiple Vulnerabilities, Highly Critical
Vulnerability Center: 33522 - [MS11-081] Microsoft Internet Explorer 6-9 Scroll Event Remote Code Execution Vulnerability, Medium

See also: 🔍

Entryinfo

Created: 10/19/2011 02:00
Updated: 03/19/2021 16:10
Changes: 10/19/2011 02:00 (52), 04/07/2017 12:02 (31), 03/19/2021 16:01 (8), 03/19/2021 16:04 (2), 03/19/2021 16:10 (1)
Complete: 🔍
Cache ID: 216:4C2:103

Be aware that VulDB is the high quality source for vulnerability data.

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