CVE-2019-3467 : Vulnerability Insights and Analysis

Debian Edu-config and Debian-lan-config versions prior to 2.11.10 and 0.26 respectively had overly permissive ACLs for the Kerberos admin server, allowing unauthorized password changes.

Understanding CVE-2019-3467

Versions of Debian-edu-config and debian-lan-config had security vulnerabilities due to overly permissive access control settings.

What is CVE-2019-3467?

CVE-2019-3467 refers to a vulnerability in Debian Edu-config and Debian-lan-config versions that allowed unauthorized password changes for Kerberos user principals.

The Impact of CVE-2019-3467

The vulnerability allowed attackers to change passwords of other Kerberos user principals, potentially compromising system security.

Technical Details of CVE-2019-3467

Debian Edu-config and Debian-lan-config versions had security issues related to access control settings.

Vulnerability Description

The ACLs in Debian-edu-config and debian-lan-config were overly permissive for the Kerberos admin server, enabling unauthorized password changes.

Affected Systems and Versions

Product: Debian Edu
Vendor: Debian
Versions Affected: all versions < 2.11.10

Exploitation Mechanism

Attackers could exploit the vulnerability to change passwords of other Kerberos user principals due to the permissive ACLs.

Mitigation and Prevention

Steps to address and prevent the CVE-2019-3467 vulnerability.

Immediate Steps to Take

Update Debian-edu-config and debian-lan-config to versions 2.11.10 and 0.26 respectively.
Monitor for any unauthorized password changes.

Long-Term Security Practices

Regularly review and adjust access control settings.
Conduct security audits to identify and address vulnerabilities.

Patching and Updates

Apply security patches promptly to address known vulnerabilities.