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full-disclosure-uk: [Full-disclosure] ZDI-07-028: CA eTrust Anti

[Full-disclosure] ZDI-07-028: CA eTrust AntiVirus Server inoweb Buffer Overflow Vulnerability

From: <zdi-disclosures_at_nospam>
Date: Fri May 11 2007 - 00:25:00 GMT
To: full-disclosure@lists.grok.org.uk, bugtraq@securityfocus.com


ZDI-07-028: CA eTrust AntiVirus Server inoweb Buffer Overflow

            Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-07-028.html May 9, 2007

  • CVE ID: CVE-2007-2522
  • Affected Vendor: Computer Associates
  • Affected Products: eTrust AntiVirus Server v8
  • TippingPoint(TM) IPS Customer Protection: TippingPoint IPS customers have been protected against this vulnerability since November 20, 2006 by Digital Vaccine protection filter ID 4861. For further product information on the TippingPoint IPS:

    http://www.tippingpoint.com

  • Vulnerability Details: This vulnerability allows attackers to execute arbitrary code on vulnerable installations of Computer Associates AntiVirus Server. User interaction is not required to exploit this vulnerability.

The specific flaw exists in the authentication function of the inoweb service that listens by default on TCP port 12168. The function copies both the username and password into fixed-length stack buffers. If an attacker provides overly long values for these parameters, an exploitable buffer overflow occurs.

  • Vendor Response: Computer Associates has issued an update to correct this vulnerability. More details can be found at:

http://supportconnectw.ca.com/public/antivirus/infodocs/caav-secnotice050807.asp

  • Disclosure Timeline: 2006.11.06 - Vulnerability reported to vendor 2006.11.20 - Digital Vaccine released to TippingPoint customers 2007.05.09 - Coordinated public release of advisory
  • Credit: This vulnerability was discovered by Tenable Network Security.
  • About the Zero Day Initiative (ZDI): Established by TippingPoint, a division of 3Com, The Zero Day Initiative (ZDI) represents a best-of-breed model for rewarding security researchers for responsibly disclosing discovered vulnerabilities.

Researchers interested in getting paid for their security research through the ZDI can find more information and sign-up at:

    http://www.zerodayinitiative.com

The ZDI is unique in how the acquired vulnerability information is used. 3Com does not re-sell the vulnerability details or any exploit code. Instead, upon notifying the affected product vendor, 3Com provides its customers with zero day protection through its intrusion prevention technology. Explicit details regarding the specifics of the vulnerability are not exposed to any parties until an official vendor patch is publicly available. Furthermore, with the altruistic aim of helping to secure a broader user base, 3Com provides this vulnerability information confidentially to security vendors (including competitors) who have a vulnerability protection or mitigation product.



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