Security readout for executives and security teams
Serv-U FTP Server had a feature meant to block repeated bad password guesses (anti-hammering). This flaw let an attacker sidestep that protection by first logging in with a valid account (even the anonymous guest account, if enabled) and then guessing passwords for other users without being locked out. It made password-guessing attacks against other accounts easier on affected FTP servers. Very limited today. Serv-U FTP Server from the 2000 era is largely out of production use; residual exposure would only exist on legacy or unmaintained FTP hosts that still run vulnerable versions and permit anonymous or low-privilege logins reachable from untrusted networks. Low priority for modern environments. Only relevant if legacy Serv-U FTP servers remain in production; in that case, prioritize decommissioning or upgrading and moving file transfer to a supported, encrypted protocol. Mitigation focus: Inventory any remaining Serv-U FTP Server instances and confirm they are patched or retired.; Consult current SolarWinds/Serv-U vendor guidance for supported versions and hardening.; Disable anonymous FTP access unless a specific business need is documented..
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-2000-1033 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- ftp-servu-brute-force(5436)CVE reference · vdb-entry, x_refsource_XF
Products and packages named in the record
CWE details
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