Rule Category

BROWSER-PLUGINS -- Snort has detected suspicious browser plugin traffic, likely targeting the ActiveX plugin in Internet Explorer, though this could apply to any browser. Attackers have refined techniques to smuggle extensions into the Chrome Web Store, which they can then modify remotely once downloaded to add or activate malicious or spyware features. This can be similar to a Potentially Unwanted Application, as valuable data and network access is often allowed on a phone or browser without proper investigation. Some extensions also mimic more well-known and trusted ones (AdBlock, etc.)

Alert Message

BROWSER-PLUGINS Tom Sawyer GET extension ActiveX clsid access attempt

Rule Explanation

Certain ActiveX controls in (1) tsgetxu71ex552.dll and (2) tsgetx71ex552.dll in Tom Sawyer GET Extension Factory 5.5.2.237, as used in VI Client (aka VMware Infrastructure Client) 2.0.2 before Build 230598 and 2.5 before Build 204931 in VMware Infrastructure 3, do not properly handle attempted initialization within Internet Explorer, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted HTML document. Impact: CVSS base score 9.3 CVSS impact score 10.0 CVSS exploitability score 8.6 confidentialityImpact COMPLETE integrityImpact COMPLETE availabilityImpact COMPLETE Details: Ease of Attack:

What To Look For

No information provided

Known Usage

No public information

False Positives

No known false positives

Contributors

Talos research team. This document was generated from data supplied by the national vulnerability database, a product of the national institute of standards and technology. For more information see [nvd].

Rule Groups

No rule groups

CVE

Rule Vulnerability

CVE Additional Information

This product uses data from the NVD API but is not endorsed or certified by the NVD.
CVE-2011-2217
Loading description