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CVE-2007-4322

6.8 · MEDIUM

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 ser…

Published Aug 14, 2007ac_zoomEPSS 1.15%

Overview

CVE-2007-4322 is a medium-severity vulnerability affecting ac_zoom blockhosts. It was published on August 14, 2007 and has a CVSS 2.0 base score of 6.8 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories and patches from ac_zoom. Update blockhosts to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refosvdb.org/36515Refwww.aczoom.com/tools/blockhosts/CHANGESRefwww.ossec.net/en/attacking-loganalysis.htmlRefosvdb.org/36515Refwww.aczoom.com/tools/blockhosts/CHANGESRefwww.ossec.net/en/attacking-loganalysis.html

How CyberStrike helps

Frequently asked questions

What is CVE-2007-4322?

CVE-2007-4322 is a medium-severity vulnerability affecting ac_zoom blockhosts. It was published on August 14, 2007 and has a CVSS 2.0 base score of 6.8 (MEDIUM).

How severe is CVE-2007-4322?

This vulnerability has a CVSS 2.0 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2007-4322?

Check the references section for vendor advisories and patches from ac_zoom. Update blockhosts to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2007-4322?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2007-4322 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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