Rule Category

SERVER-OTHER -- Snort has detected traffic exploiting vulnerabilities in a server in the network.

Alert Message

SERVER-OTHER Apple CUPS Text to PostScript Filter Integer Overflow attempt

Rule Explanation

Integer overflow in the WriteProlog function in texttops in CUPS before 1.3.9 allows remote attackers to execute arbitrary code via a crafted PostScript file that triggers a heap-based buffer overflow. 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

This rule will alert when an attempt to exploit a known integer overflow in CUPS is detected.

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: User Execution

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

CVE

Rule Vulnerability

Buffer Overflow

Buffer Overflows occur when a memory location is filled past its expected boundaries. Computer attackers target systems without proper terminating conditions on buffers, which then write the additional information in other locations in memory, overwriting what is there. This could corrupt the data, making the system behave erratically or crash. The new information could include malicious executable code, which might be executed.

CVE Additional Information

CVE-2008-3640
Integer overflow in the WriteProlog function in texttops in CUPS before 1.3.9 allows remote attackers to execute arbitrary code via a crafted PostScript file that triggers a heap-based buffer overflow.
Details
SeverityMEDIUM Base Score6.8
Impact Score6.4 Exploit Score8.6
Confidentiality ImpactPARTIAL Integrity ImpactPARTIAL
Availability ImpactPARTIAL Access Vector
AuthenticationNONE Ease of Access