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CVE-2004-0371

5.0 · MEDIUM

Heimdal 0.6.x before 0.6.1 and 0.5.x before 0.5.3 does not properly perform certain consistency checks for cross-realm requests, which allows remote attackers with control of a realm to impersonate…

Published May 4, 2004kthEPSS 1.53%

Overview

CVE-2004-0371 is a medium-severity vulnerability affecting kth heimdal. It was published on May 4, 2004 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Heimdal 0.6.x before 0.6.1 and 0.5.x before 0.5.3 does not properly perform certain consistency checks for cross-realm requests, which allows remote attackers with control of a realm to impersonate others in the cross-realm trust path.

Remediation

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

Refftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-04:08.heimdal.ascRefftp://ftp.openbsd.org/pub/OpenBSD/patches/3.5/common/009_kerberos.patchRefsecurity.gentoo.org/glsa/glsa-200404-09.xmlRefwww.debian.org/security/2004/dsa-476Refwww.pdc.kth.se/heimdal/advisory/2004-04-01/Refexchange.xforce.ibmcloud.com/vulnerabilities/15701Refftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-04:08.heimdal.ascRefftp://ftp.openbsd.org/pub/OpenBSD/patches/3.5/common/009_kerberos.patchRefsecurity.gentoo.org/glsa/glsa-200404-09.xmlRefwww.debian.org/security/2004/dsa-476

How CyberStrike helps

Frequently asked questions

What is CVE-2004-0371?

CVE-2004-0371 is a medium-severity vulnerability affecting kth heimdal. It was published on May 4, 2004 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

How severe is CVE-2004-0371?

This vulnerability has a CVSS 2.0 base score of 5.0, 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-2004-0371?

Check the references section for vendor advisories and patches from kth. Update heimdal 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-2004-0371?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2004-0371 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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