Condor reverse DNS security bypass

condor-reverse-dns-security-bypass (77748) The risk level is classified as MediumMedium Risk

Description:

Condor could allow an attacker to bypass security restrictions, caused by the improper verification of an IP address when handling reverse DNS lookups of a host name. If host-based authentication is enabled, an attacker with knowledge about the configuration of the target application daemons could exploit this vulnerability via a specially-crafted reverse DNS record to bypass the authentication process to perform unauthorized administrative actions.

*CVSS:

Base Score: 6
  Access Vector: Network
  Access Complexity: Medium
  Authentication: Single
  Confidentiality Impact: Partial
  Integrity Impact: Partial
  Availability Impact: Partial
 
Temporal Score: 4.4
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Bypass Security

Remedy:

Upgrade to the latest version of Condor (7.8.2 or later), available from the Condor Web page. See References.

References:

  • Condor Web page: CONDOR-2012-0002 .
  • BID-55032: Condor CVE-2012-3416 Security Bypass Vulnerability
  • CVE-2012-3416: Condor before 7.8.2 allows remote attackers to bypass host-based authentication and execute actions such as ALLOW_ADMINISTRATOR or ALLOW_WRITE by connecting from a system with a spoofed reverse DNS hostname.
  • OSVDB ID: 84766: Condor Reverse DNS Host Name Lookup Handling Authentication Bypass
  • RHSA-2012-1168: Important: condor security update
  • RHSA-2012-1169: Important: condor security update
  • SA50246: Condor Reverse DNS Lookup Host-based Authentication Security Bypass

Platforms Affected:

  • Condor Project Condor 7.4
  • RedHat Enterprise MRG 2

Reported:

Aug 14, 2012

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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