Security readout for executives and security teams
This is a username-discovery issue in vsftpd 1.1.3. A remote attacker could distinguish valid from invalid usernames because the server returned different errors. By itself, this is not account compromise, but it can make password guessing or targeted phishing more efficient against exposed FTP services. Exposure is likely limited to legacy systems still running vsftpd 1.1.3, especially FTP services reachable from untrusted networks. Modern distributions are unlikely to ship this exact version, but old appliances, forgotten servers, or manually installed FTP daemons should be checked. Treat as low urgency unless vsftpd 1.1.3 is exposed to the Internet or used for sensitive accounts. The main business risk is enabling follow-on credential attacks against a legacy service. Mitigation focus: Inventory Internet-facing and internal FTP services for vsftpd 1.1.3.; Check vendor or distribution guidance for supported vsftpd packages and fixes.; Retire or replace unsupported legacy FTP services where possible..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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CVE-2004-0042 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
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- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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CVSS and timeline data
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Source materials
- CVE List V5 sourceCVE List V5
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CWE details
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