Crowbar Ohai plugin privilege escalation

crowbar-privilege-escalation (78041) The risk level is classified as HighHigh Risk

Description:

Crowbar could allow a local attacker to gain elevated privileges on the system, caused by the use of temporary files in an insecure manner by the Ohai plugin. A local attacker could exploit this vulnerability to execute arbitrary code on the system with elevated privileges.

*CVSS:

Base Score: 4.6
  Access Vector: Local
  Access Complexity: Low
  Authentication: None
  Confidentiality Impact: Partial
  Integrity Impact: Partial
  Availability Impact: Partial
 
Temporal Score: 3.4
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Privileges

Remedy:

Apply the patch for this vulnerability, available from the Crowbar GIT Repository. See References.

References:

  • Crowbar GIT Repository: Crowbar.
  • oss-sec mailing list, Mon, 27 Aug 2012 17:31:13 +0200: CVE request: crowbar ohai plugin: local privilege (root) escalation due to insecure tmp file handling.
  • BID-55240: Dell 'Crowbar ohai' Plugin Local Privilege Escalation Vulnerability
  • CVE-2012-3537: The Crowbar Ohai plugin (chef/cookbooks/ohai/files/default/plugins/crowbar.rb) in the Deployer Barclamp in Crowbar, possibly 1.4 and earlier, allows local users to execute arbitrary shell commands via vectors related to insecure handling of tmp files and predictable file names.
  • OSVDB ID: 84955: Crowbar Ohai Plugin Temporary File Local Privilege Escalation
  • SA50442: Crowbar Ohai Plugin Insecure Temporary Files Security Issue

Platforms Affected:

  • Dell CloudEdge Solutions Team Crowbar

Reported:

Aug 27, 2012

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