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CVE-2003-0466

9.8 · CRITICAL

Off-by-one error in the fb_realpath() function, as derived from the realpath function in BSD, may allow attackers to execute arbitrary code, as demonstrated in wu-ftpd 2.5.0 through 2.6.2 via comma…

Published Aug 27, 2003redhatCWE-193EPSS 78.11%

Overview

CVE-2003-0466 is a critical-severity vulnerability affecting redhat wu_ftpd. It was published on August 27, 2003 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Off-by-one error in the fb_realpath() function, as derived from the realpath function in BSD, may allow attackers to execute arbitrary code, as demonstrated in wu-ftpd 2.5.0 through 2.6.2 via commands that cause pathnames of length MAXPATHLEN+1 to trigger a buffer overflow, including (1) STOR, (2) RETR, (3) APPE, (4) DELE, (5) MKD, (6) RMD, (7) STOU, or (8) RNTO.

Remediation

Check the references section for vendor advisories and patches from redhat. Update wu_ftpd to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
wuftpdwu-ftpd2.5.0Affected
freebsdfreebsd4.0Affected
netbsdnetbsd1.5Affected
openbsdopenbsd2.0Affected

References

Refftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2003-011.txt.ascRefarchives.neohapsis.com/archives/vulnwatch/2003-q3/0065.htmlRefdownload.immunix.org/ImmunixOS/7+/Updates/errata/IMNX-2003-7+-019-01Refisec.pl/vulnerabilities/isec-0011-wu-ftpd.txtRefmarc.info/?l=bugtraq&m=105967301604815&w=2Refmarc.info/?l=bugtraq&m=106001410028809&w=2Refmarc.info/?l=bugtraq&m=106001702232325&w=2Refmarc.info/?l=bugtraq&m=106002488209129&w=2Refsecunia.com/advisories/9423Refsecunia.com/advisories/9446

How CyberStrike helps

Frequently asked questions

What is CVE-2003-0466?

CVE-2003-0466 is a critical-severity vulnerability affecting redhat wu_ftpd. It was published on August 27, 2003 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2003-0466?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2003-0466?

Check the references section for vendor advisories and patches from redhat. Update wu_ftpd to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2003-0466?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2003-0466 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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