CVE-2001-0679: Buffer Overflow
A buffer overflow in InterScan VirusWall 3.23 and 3.3 allows a remote attacker to execute arbitrary code by sending a long HELO command to the server.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Remove
Remove
Trend Micro InterScan VirusWallfrom your environment.If the product is not required, uninstall or remove InterScan VirusWall from exposed systems to eliminate the vulnerable service until an official patch or fixed version is available.
- Configuration
If SMTP/HELO processing is not required on this appliance, disable the SMTP service or HELO command handling in the product to prevent processing of remote HELO commands until an official fix is available.
Trend Micro InterScan VirusWall SMTP/HELO processing = disabled (if not required) - Compensating control
At the network perimeter, block or restrict inbound SMTP (TCP port 25) to the InterScan VirusWall instance. Allow access only from trusted mail relays/IPs via firewall rules or ACLs to prevent unauthenticated remote HELO commands.
- Compensating control
Deploy an SMTP proxy or filtering device in front of InterScan VirusWall that enforces HELO length and protocol validation and drops or rejects overly long or malformed HELO commands.
Event History
Frequently Asked Questions
What is the severity of CVE-2001-0679?
CVE-2001-0679 is considered a critical vulnerability due to the potential for remote code execution by attackers.
How do I fix CVE-2001-0679?
To fix CVE-2001-0679, update your InterScan VirusWall to the latest version that resolves the buffer overflow issue.
Which versions of InterScan VirusWall are affected by CVE-2001-0679?
CVE-2001-0679 affects InterScan VirusWall versions 3.23 and 3.3.
What type of attack is facilitated by CVE-2001-0679?
CVE-2001-0679 allows a remote attacker to execute arbitrary code via a crafted HELO command.
Is CVE-2001-0679 still a relevant threat?
While CVE-2001-0679 was identified many years ago, it remains a relevant risk for systems still running vulnerable versions of InterScan VirusWall.