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 was found in Microsoft Internet Explorer 6/7/8/9. It has been declared as critical. This impacts an unknown function. Such manipulation leads to input validation. This vulnerability is uniquely identified as CVE-2011-1961. The attack can be launched remotely. No exploit exists. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Microsoft Internet Explorer 6/7/8/9 (Web Browser). Affected by this issue is some unknown processing. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

The telnet URI handler in Microsoft Internet Explorer 6 through 9 does not properly launch the handler application, which allows remote attackers to execute arbitrary programs via a crafted web site, aka "Telnet Handler Remote Code Execution Vulnerability."

The weakness was disclosed 08/10/2011 as MS11-057 as confirmed bulletin (Technet). The advisory is shared for download at technet.microsoft.com. This vulnerability is handled as CVE-2011-1961. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 55787 , 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 100105 (Microsoft Internet Explorer Cumulative Security Update (MS11-057)).

Applying the patch MS11-057 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 11538.

The vulnerability is also documented in the databases at X-Force (68819), Tenable (55787), SecurityFocus (BID 49027†) and Vulnerability Center (SBV-32642†). The entries VDB-2069, VDB-4383, VDB-56786 and VDB-58235 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

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

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 🔍

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: 55787
Nessus File: 🔍
Nessus Risk: 🔍

OpenVAS ID: 902613
OpenVAS Name: Microsoft Internet Explorer Multiple Vulnerabilities (2559049)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Saint ID: exploit_info/ie_url_telnet_insecure_load
Saint Name: Internet Explorer Telnet URI Insecure Loading

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: MS11-057
TippingPoint: 🔍
ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

05/09/2011 🔍
08/09/2011 +92 days 🔍
08/10/2011 +1 days 🔍
08/10/2011 +0 days 🔍
08/10/2011 +0 days 🔍
03/23/2015 +1321 days 🔍
11/17/2021 +2431 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS11-057
Status: Confirmed

CVE: CVE-2011-1961 (🔍)
GCVE (CVE): GCVE-0-2011-1961
GCVE (VulDB): GCVE-100-58232

OVAL: 🔍

X-Force: 68819
SecurityFocus: 49027
Vulnerability Center: 32642 - [MS11-057] Microsoft Internet Explorer 6.0-9 URI Handler Remote Code Execution Vulnerability, Medium

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 11/17/2021 13:52
Changes: 03/23/2015 16:50 (44), 04/07/2017 12:10 (26), 11/17/2021 13:39 (1), 11/17/2021 13:46 (7), 11/17/2021 13:52 (1)
Complete: 🔍
Cache ID: 216:66D:103

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