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 Oracle Java XML digital signature spoofing attempt

Rule Explanation

Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 21 and earlier and 6 Update 45 and earlier; the Oracle JRockit component in Oracle Fusion Middleware R27.7.5 and earlier and R28.2.7 and earlier; and OpenJDK 7 allows remote attackers to affect confidentiality, integrity, and availability via unknown vectors related to Libraries. NOTE: the previous information is from the June and July 2013 CPU. Oracle has not commented on claims from another vendor that this issue allows remote attackers to bypass verification of XML signatures via vectors related to a "Missing check for [a] valid DOMCanonicalizationMethod canonicalization algorithm." Impact: CVSS base score 7.5 CVSS impact score 6.4 CVSS exploitability score 10.0 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

Additional Links

Rule Vulnerability

CVE Additional Information

CVE-2013-2461
Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 21 and earlier and 6 Update 45 and earlier; the Oracle JRockit component in Oracle Fusion Middleware R27.7.5 and earlier and R28.2.7 and earlier; and OpenJDK 7 allows remote attackers to affect confidentiality, integrity, and availability via unknown vectors related to Libraries. NOTE: the previous information is from the June and July 2013 CPU. Oracle has not commented on claims from another vendor that this issue allows remote attackers to bypass verification of XML signatures via vectors related to a "Missing check for [a] valid DOMCanonicalizationMethod canonicalization algorithm."
Details
SeverityHIGH Base Score7.5
Impact Score6.4 Exploit Score10.0
Confidentiality ImpactPARTIAL Integrity ImpactPARTIAL
Availability ImpactPARTIAL Access Vector
AuthenticationNONE Ease of Access