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8.5

Serv-U FTP Server lets attackers run code with long filenames

CVE-2004-2111 · published 21 years ago
Summary

A programming mistake in Serv-U FTP Server before version 4.2 allows a specially crafted, overly long file name to overflow memory and let an attacker run their own code on the server. This could give a remote attacker control of the system. Upgrade to version 4.2 or later and apply any available security patches, and consider restricting allowed file name lengths as a temporary mitigation.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
solarwinds serv-u_file_server <= 4.1.0.3
3.0.0.16
3.0.0.17
3.1.0.0
3.1.0.1
3.1.0.3
4.0.0.4
4.1.0.0
cpe:2.3:a:solarwinds:serv-u_file_server:*:*:*:*:*:*:*:*
Original advisory text
Stack-based buffer overflow in the site chmod command in Serv-U FTP Server before 4.2 allows remote attackers to execute arbitrary code via a long filename.
Stack-based buffer overflow in the site chmod command in Serv-U FTP Server before 4.2 allows remote attackers to execute arbitrary code via a long filename.
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker full control (estimated)
Severity
8.5 High
Exploitation
87% chance of attack within 30 days
Type
CWE-119Buffer Overflow
Timeline
Published31 Dec 2004
Updated29 Sep 2026
First seen29 Sep 2026
Sources
CVE-2004-2111 · NVD
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