BlockHosts before 2.0.4 does not properly parse (1) sshd and (2) vsftpd log files, which…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
BlockHosts before 2.0.4 does not properly parse (1) sshd and (2) vsftpd log files, which allows remote attackers to add arbitrary deny entries to the /etc/hosts.allow file and cause a denial of service by adding arbitrary IP addresses to a daemon log file, as demonstrated by connecting through ssh with a client protocol version identification containing an IP address string, or connecting through ftp with a username containing an IP address string, different vectors than CVE-2007-2765.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2007-4322
- 2026-10-03 Alias added: GHSA-h24w-j9mf-mjf2
References
More Ac Zoom Blockhosts vulnerabilities
- TI-2007-02676 blockhosts.py in BlockHosts before 2.0.3 does not properly parse daemon log files, which… CVSS 2.0MEDIUM 6.8
Sources
- CVE-2007-4322 · CVE Program
- CVE-2007-4322 · NVD
- FIRST EPSS
- GHSA-h24w-j9mf-mjf2 · GitHub Advisory Database · CC BY 4.0
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