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CVE-2007-5715

4.3 · MEDIUM

DenyHosts 2.6 processes OpenSSH sshd "not listed in AllowUsers" log messages with an incorrect regular expression that does not match an IP address, which might allow remote attackers to avoid dete…

Published Oct 30, 2007denyhostsCWE-16EPSS 1.07%

Overview

CVE-2007-5715 is a medium-severity vulnerability affecting denyhosts denyhosts. It was published on October 30, 2007 and has a CVSS 2.0 base score of 4.3 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

DenyHosts 2.6 processes OpenSSH sshd "not listed in AllowUsers" log messages with an incorrect regular expression that does not match an IP address, which might allow remote attackers to avoid detection and blocking when making invalid login attempts with a username not present in AllowUsers, as demonstrated by the root username, a different vulnerability than CVE-2007-4323.

Remediation

Check the references section for vendor advisories and patches from denyhosts. Update denyhosts 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

Refbugs.gentoo.org/show_bug.cgi?id=181213Refosvdb.org/45298Refbugzilla.redhat.com/show_bug.cgi?id=237449Refbugs.gentoo.org/show_bug.cgi?id=181213Refosvdb.org/45298Refbugzilla.redhat.com/show_bug.cgi?id=237449

How CyberStrike helps

Frequently asked questions

What is CVE-2007-5715?

CVE-2007-5715 is a medium-severity vulnerability affecting denyhosts denyhosts. It was published on October 30, 2007 and has a CVSS 2.0 base score of 4.3 (MEDIUM).

How severe is CVE-2007-5715?

This vulnerability has a CVSS 2.0 base score of 4.3, 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-2007-5715?

Check the references section for vendor advisories and patches from denyhosts. Update denyhosts 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-2007-5715?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2007-5715 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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