IBM Informix Dynamic Server DBLANG directory traversal

ibm-ids-dblang-directory-traversal (38297) The risk level is classified as HighHigh Risk

Description:

IBM Informix Dynamic Server could allow a local attacker to traverse directories and gain elevated privileges on the system, caused by improper validation of the DBLANG environment variable. An attacker could exploit this vulnerability to gain root privileges on the system by using an unspecified setuid binary to set the DBLANG variable to a specially-crafted value containing "dot dot" (../) sequences.

*CVSS:

Base Score: 6.9
  Access Vector: Local
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: Complete
  Integrity Impact: Complete
  Availability Impact: Complete
 
Temporal Score: 5.1
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Privileges

Remedy:

Upgrade to the latest version of IBM Informix Dynamic Server (10.00.xC7W1 or later), available from the IBM Support & downloads Web site. See References.

References:

  • IBM Support & downloads: Fix list for Informix Dynamic Server 10.00.xC7W1.
  • iDefense Labs PUBLIC ADVISORY: 11.09.07: IBM Informix Dynamic Server DBLANG Directory Traversal Vulnerability.
  • BID-26363: IBM Informix Dynamic Server Multiple Vulnerabilities
  • CVE-2007-5956: Directory traversal vulnerability in IBM Informix Dynamic Server (IDS) before 10.00.xC7W1 allows local users to gain privileges by referencing modified NLS message files through directory traversal sequences in the DBLANG environment variable.
  • SA27542: IBM Informix Dynamic Server Directory Traversal and Denial of Service
  • VUPEN/ADV-2007-3757: IBM Informix Dynamic Server Directory Traversal and DoS Vulnerabilities

Platforms Affected:

  • IBM Informix Dynamic Server 10.0

Reported:

Nov 06, 2007

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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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