Microsoft Internet Explorer 9 DLL-Loader path traversal

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

A vulnerability, which was classified as critical, has been found in Microsoft Internet Explorer 9 (Web Browser). Affected by this issue is an unknown function of the component DLL-Loader. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Untrusted search path vulnerability in Microsoft Internet Explorer 9 on Windows Server 2008 R2 and R2 SP1 and Windows 7 Gold and SP1 allows local users to gain privileges via a Trojan horse DLL in the current working directory, as demonstrated by a directory that contains an HTML file, aka "Internet Explorer Insecure Library Loading Vulnerability."

The weakness was released 12/13/2011 as MS11-099 as confirmed bulletin (Technet). The advisory is available at technet.microsoft.com. The public release was coordinated with the vendor. This vulnerability is handled as CVE-2011-2019 since 05/09/2011. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details are unknown but a private exploit is available. This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 57285 (MS11-099: Cumulative Security Update for Internet Explorer (2618444)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins. The commercial vulnerability scanner Qualys is able to test this issue with plugin 100114 (Microsoft Cumulative Security Update for Internet Explorer (MS11-099)).

Applying the patch KB2618444 is able to eliminate this problem. The bugfix is ready for download at support.microsoft.com. 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 11920.

The vulnerability is also documented in the vulnerability database at Tenable (57285). computerworld.com is providing further details. Entries connected to this vulnerability are available at 4454, 4470, 4469 and 4474.

Productinfo

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  • end of life

CPE 2.3info

CPE 2.2info

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CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.5

VulDB Base Score: 6.3
VulDB Temp Score: 5.5
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CVSSv2info

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Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Access: Private
Status: Unproven

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Nessus ID: 57285
Nessus Name: MS11-099: Cumulative Security Update for Internet Explorer (2618444)
Nessus File: 🔍
Nessus Risk: 🔍
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OpenVAS ID: 902642
OpenVAS Name: Microsoft Internet Explorer Multiple Vulnerabilities (2618444)
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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Patch
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Patch: KB2618444
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Timelineinfo

05/09/2011 🔍
12/13/2011 +218 days 🔍
12/13/2011 +0 days 🔍
12/13/2011 +0 days 🔍
12/13/2011 +0 days 🔍
12/14/2011 +0 days 🔍
01/21/2012 +38 days 🔍
03/20/2021 +3346 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS11-099
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2011-2019 (🔍)
OVAL: 🔍

Vulnerability Center: 34030 - [MS11-099] Microsoft Internet Explorer 9 Local Privileges Escalation Vulnerability, High
SecurityFocus: 50975
Secunia: 47212 - Microsoft Internet Explorer Three Vulnerabilities, Highly Critical
OSVDB: 77674 - Microsoft IE Path Subversion Arbitrary DLL Injection Code Execution

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Entryinfo

Created: 01/21/2012 01:00
Updated: 03/20/2021 07:10
Changes: 01/21/2012 01:00 (52), 04/07/2017 12:02 (25), 03/20/2021 07:03 (7), 03/20/2021 07:10 (1)
Complete: 🔍

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