Antivir creates insecure temporary files

antivir-tmpfile-insecure (14214) The risk level is classified as MediumMedium Risk

Description:

Antivir, when running on Linux platforms, creates insecure temporary files, which could allow a local attacker to launch a symlink attack. A local attacker could create a symbolic link for a file in /tmp to an arbitrary file on the system, which would allow the attacker to create or overwrite files on the system.

*CVSS:

Base Score: 2.5
  Access Vector: Local
  Access Complexity: Low
  Authentication: Not Required
  Confidentiality Impact: None
  Integrity Impact: Partial
  Availability Impact: None
 
Temporal Score: 1.8
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

File Manipulation

Remedy:

Upgrade to the latest version of AntiVir (2.0.9-12 or later), available from the AntiVir Web site. See References.

References:

  • BugTraq Mailing List, Tue Jan 13 2004 - 12:37:30 CST : symlink vul for Antivir / Linux Version 2.0.9-9 (maybe lower).
  • BID-9413: H+BEDV AntiVir Insecure Temporary File Creation Symbolic Link Vulnerability
  • CVE-2004-0058: Antivir / Linux 2.0.9-9, and possibly earlier versions, allows local users to overwrite arbitrary files via a symlink attack on the .pid_antivir_$$ temporary file.
  • OSVDB ID: 3496: H+BEDV AntiVir Insecure Temp File Privilege Escalation
  • SA10620: H+BEDV AntiVir Insecure Temporary File Creation Vulnerability
  • SECTRACK ID: 1008702: AntiVir Temporary File Symlink Flaw Lets Local Users Overwrite Files With Root Privileges

Platforms Affected:

  • Antivir Antivir 2.0.9-9

Reported:

Jan 13, 2004

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 the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

For corrections or additions please email ignore thisxforceignore this@ignore thisus.ignore thisibm.comignore this

Return to the main page

* According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
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.

About IBM Security Systems

IBM Security Systems include an extensive portfolio of hardware, software solutions, professional and managed services offerings covering the spectrum of IT and business security risks: people and identity, data and information, application and process, network, server and endpoint and physical infrastructure, empowering clients to innovate and operate their businesses on the most secure infrastructure platforms. Through world-class solutions that address risk across the enterprise, IBM helps organizations build a strong security posture that helps reduce costs, improve service, and manage risk. IBM X-Force(R) Research and Development is one of the most renowned commercial security research and development groups in the world. For more information on how to address today's biggest risks, please visit us at ibm.com/security.