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 Schneider Electric ProClima F1BookView ActiveX clsid access attempt

Rule Explanation

The F1BookView ActiveX control in F1 Bookview in Schneider Electric ProClima before 6.2 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted integer value to the (1) AttachToSS, (2) CopyAll, (3) CopyRange, (4) CopyRangeEx, or (5) SwapTable method, a different vulnerability than CVE-2015-7918. Impact: CVSS base score 6.8 CVSS impact score 6.4 CVSS exploitability score 8.6 confidentialityImpact PARTIAL integrityImpact PARTIAL availabilityImpact PARTIAL Details: Ease of Attack:

What To Look For

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].

MITRE ATT&CK Framework

Tactic:

Technique:

For reference, see the MITRE ATT&CK vulnerability types here: https://attack.mitre.org

CVE

Rule Vulnerability

CVE Additional Information

CVE-2015-8561
The F1BookView ActiveX control in F1 Bookview in Schneider Electric ProClima before 6.2 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted integer value to the (1) AttachToSS, (2) CopyAll, (3) CopyRange, (4) CopyRangeEx, or (5) SwapTable method, a different vulnerability than CVE-2015-7918.
Details
SeverityMEDIUM Base Score6.8
Impact Score6.4 Exploit Score8.6
Confidentiality ImpactPARTIAL Integrity ImpactPARTIAL
Availability ImpactPARTIAL Access Vector
AuthenticationNONE Ease of Access