A vulnerability was found in Red Hat Linux 6.1 (Operating System). It has been classified as critical. Affected is an unknown part of the file /etc/nologin of the component Rlogin. The manipulation with an unknown input leads to a improper authentication vulnerability. CWE is classifying the issue as CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

PAM configuration file for rlogin in Red Hat Linux 6.1 and earlier includes a less restrictive rule before a more restrictive one, which allows users to access the host via rlogin even if rlogin has been explicitly disabled using the /etc/nologin file.

The issue has been introduced in 10/04/1999. The weakness was disclosed 10/07/1999 as not defined posting (Bugtraq). The advisory is shared for download at marc.theaimsgroup.com. This vulnerability is traded as CVE-1999-1346. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $5k-$25k.

Upgrading eliminates this vulnerability.

The entry 14893 is pretty similar.

Productinfo

Type

• Operating System

Vendor

• Red Hat

Name

• Linux

Version

• 6.1

License

• open-source

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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