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CVE-2022-26562

9.8 · CRITICAL

An issue in provider/libserver/ECKrbAuth.cpp of Kopano Core <= v11.0.2.51 contains an issue which allows attackers to authenticate even if the user account or password is expired.

Published Apr 1, 2022CWE-287EPSS 2.15%

Overview

CVE-2022-26562 is a critical-severity vulnerability. It was published on April 1, 2022 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

An issue in provider/libserver/ECKrbAuth.cpp of Kopano Core <= v11.0.2.51 contains an issue which allows attackers to authenticate even if the user account or password is expired. It also exists in the predecessor Zarafa Collaboration Platform (ZCP) in provider/libserver/ECPamAuth.cpp of Zarafa >= 6.30 (introduced between 6.30.0 RC1e and 6.30.8 final).

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. 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.

References

Refbodhi.fedoraproject.org/updates/FEDORA-EPEL-2023-342b96903bRefbugzilla.redhat.com/show_bug.cgi?id=2192126GitHubgithub.com/Kopano-dev/kopano-core/blob/master/provider/libserver/ECKrbAuth.cpp#L137Refjira.kopano.io/browse/KC-2021Refkopano.com/Reflists.debian.org/debian-lts-announce/2023/03/msg00006.htmlRefsrc.fedoraproject.org/rpms/zarafa/c/a5a8366ccf07f248fae6edffb5123cfda579bfdb?branch=epel7Refstash.kopano.io/projects/KC/repos/kopanocore/browse/provider/libserver/ECKrbAuth.cpp#137Refbodhi.fedoraproject.org/updates/FEDORA-EPEL-2023-342b96903bRefbugzilla.redhat.com/show_bug.cgi?id=2192126

How CyberStrike helps

Frequently asked questions

What is CVE-2022-26562?

CVE-2022-26562 is a critical-severity vulnerability. It was published on April 1, 2022 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2022-26562?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2022-26562?

Check the references section for vendor advisories, patches, and mitigation guidance. 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-2022-26562?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-26562 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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