Rule Category

FILE-JAVA -- Snort has detected traffic targeting vulnerabilities that are exploited in java files such as .class or .jar.

Alert Message

FILE-JAVA Oracle Java sun.awt.image.ImageRepresentation.setPixels integer overflow attempt

Rule Explanation

Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 17 and earlier, 6 Update 43 and earlier, and 5.0 Update 41 and earlier; and OpenJDK 6 and 7; allows remote attackers to affect confidentiality, integrity, and availability via unknown vectors related to ImageIO. NOTE: the previous information is from the April 2013 CPU. Oracle has not commented on claims from another vendor that this issue is related to "JPEGImageWriter state corruption" when using native code, which triggers memory corruption. Impact: CVSS base score 7.6 CVSS impact score 10.0 CVSS exploitability score 4.9 confidentialityImpact COMPLETE integrityImpact COMPLETE availabilityImpact COMPLETE Details: Ease of Attack:

What To Look For

Event is triggered by vulnerability in Oracle Java JPEGImageWriter, due to improper locking of the state of the class as defined by its private properties, when a specially crafted Java file is seen across traffic.

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: Execution

Technique: Exploitation for Client Execution

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

CVE

Rule Vulnerability

Memory Corruption

Memory Corruption is any vulnerability that allows the modification of the content of memory locations in a way not intended by the developer. Memory corruption results are inconsistent; they could lead to fatal errors and system crashes or data leakage; some have no effect at all.

CVE Additional Information

CVE-2013-2420
Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 17 and earlier, 6 Update 43 and earlier, and 5.0 Update 41 and earlier; and OpenJDK 6 and 7; allows remote attackers to affect confidentiality, integrity, and availability via unknown vectors related to 2D. NOTE: the previous information is from the April 2013 CPU. Oracle has not commented on claims from another vendor that this issue is related to insufficient "validation of images" in share/native/sun/awt/image/awt_ImageRep.c, possibly involving offsets.
Details
SeverityHIGH Base Score10.0
Impact Score10.0 Exploit Score10.0
Confidentiality ImpactCOMPLETE Integrity ImpactCOMPLETE
Availability ImpactCOMPLETE Access Vector
AuthenticationNONE Ease of Access