6.8med

CVE-2007-4322

BlockHosts before 2.0.4 does not properly parse (1) sshd and (2) vsftpd log files, which allows remote attackers to add arbitrary deny entr…

Published 19 y ago · modified 4 mo ago · JSON

CVSS
6.8
v2.0 · NVD
CISA KEV
No
not known exploited
EPSS
1.2%
percentile 67%
Public exploits
0
none known

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.

Exploit prediction (EPSS)

1.15% probability of exploitation in the next 30 days, higher than 67% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD2.06.8AV:N/AC:M/Au:N/C:P/I:P/A:P

References

  • aczoom.com /tools/blockhosts/CHANGES · x_refsource_CONFIRM, x_transferred
  • ossec.net /en/attacking-loganalysis.html · x_refsource_MISC, x_transferred
  • osvdb.org /36515 · vdb-entry, x_refsource_OSVDB, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.