CVE Catalog

CVE-2006-3083

High
Published: Translated: NVD NIST

Summary

The krshd and v4rcp applications in MIT Kerberos 5 (up to 1.5 and 1.4.x before 1.4.4) on Linux and AIX, and in Heimdal 0.7.2 and earlier, do not check return codes for setuid calls. A local user can exploit this by causing setuid to fail to drop privileges (e.g., through resource exhaustion) to gain privileges.

Risk Assessment

A local attacker can gain elevated privileges, leading to system compromise and potential data confidentiality and integrity breaches.

Recommendation

Update MIT Kerberos 5 to version 1.4.4 or later (or 1.5) and Heimdal to a version newer than 0.7.2. If updating is not possible, restrict access to krshd and v4rcp to trusted users.

Related vulnerabilities

Original NVD description (English source)

The (1) krshd and (2) v4rcp applications in (a) MIT Kerberos 5 (krb5) up to 1.5, and 1.4.x before 1.4.4, when running on Linux and AIX, and (b) Heimdal 0.7.2 and earlier, do not check return codes for setuid calls, which allows local users to gain privileges by causing setuid to fail to drop privileges using attacks such as resource exhaustion.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS