CVE-2007-4323 json
DenyHosts 2.6 does not properly parse sshd log files, which allows remote attackers to add arbitrary hosts to the /etc/hosts.deny file and…
published 2007-08-14 19 y ago modified 2026-06-16 4 mo ago also EUVD-2007-4306
- cvss
- 6.8
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.5%
- EPSS 1.5% chance of exploitation in 30 days, percentile 74%
- public exploits
- 0
- none known
Summary
DenyHosts 2.6 does not properly parse sshd log files, which allows remote attackers to add arbitrary hosts to the /etc/hosts.deny file and cause a denial of service by adding arbitrary IP addresses to the sshd log file, as demonstrated by logging in via ssh with a client protocol version identification containing an IP address string, a different vector than CVE-2006-6301.
Exploit prediction
1.48% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
References
-
security.gentoo.org
/glsa/glsa-200710-14.xml
vendor-advisory
-
osvdb.org
/42482
vdb-entry
-
exchange.xforce.ibmcloud.com
/vulnerabilities/37199
vdb-entry
- bugzilla.redhat.com /bugzilla/show_bug.cgi?id=244943
- ossec.net /en/attacking-loganalysis.html
-
securityfocus.com
/bid/26061
vdb-entry
- bugs.gentoo.org /show_bug.cgi?id=181213
-
secunia.com
/advisories/27254
third-party-advisory
Sources
- CVE List CVE-2007-4323
- NVD CVE-2007-4323
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