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FreeBSD bsnmpd GETBULK PDU Stack Buffer Overflow - ver 2 (CVE-2014-1452)

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Check Point Reference: CPAI-2014-1186
Date Published:
Severity:
Last Updated:
Source: FreeBSD FreeBSD-SA-14:01
Industry Reference(s): CVE-2014-1452
Protection Provided by: Security Gateway
  • R75 and above
Who is Vulnerable?
FreeBSD Project bsnmpd releng 10.0 prior to r260640
FreeBSD Project bsnmpd releng 8.3 prior to r260647
FreeBSD Project bsnmpd releng 8.4 prior to r260647
FreeBSD Project bsnmpd releng 9.1 prior to r260647
FreeBSD Project bsnmpd releng 9.2 prior to r260647
FreeBSD Project bsnmpd stable 10 prior to r260638
FreeBSD Project bsnmpd stable 8 prior to r260642
FreeBSD Project bsnmpd stable 9 prior to r260642
Vulnerability Description
A remote code execution vulnerability exists in the SNMP daemon bsnmpd. The vulnerability is due to insufficient input validation by the libbsnmp.so.6 library when it accepts getBulkRequest requests. A remote, unauthenticated attacker can exploit these vulnerabilities to execute arbitrary code on the target system within the security context of bsnmpd process, or cause the service to terminate resulting in a denial of service.

Protection Overview
This protection will detect and block attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, Protection tab and select the version of your choice.

To configure the defense, select your product from the list below and follow the related protection steps.

Security Gateway R70 / R71 / R75 and above

How Can I Protect My Network?

  1. In the IPS tab, click Protections and find the FreeBSD bsnmpd GETBULK PDU Stack Buffer Overflow - ver 2 protection using the Search tool and Edit the protection's settings.
  2. Install policy on all modules.

How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:

Attack Name:  SNMP Protection Violation.
Attack Information:  FreeBSD bsnmpd GETBULK PDU Stack Buffer Overflow - ver 2