A vulnerability was found in Red Hat Linux 6.0 (Operating System). It has been declared as critical. Affected by this vulnerability is some unknown processing of the component Single User Mode. The manipulation with the input value ^C leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Red Hat 6.0 allows local users to gain root access by booting single user and hitting ^C at the password prompt.

The issue has been introduced in 04/26/1999. The weakness was presented 02/23/2000 by Darren Reed (Website). It is possible to read the advisory at securityfocus.com. This vulnerability is known as CVE-2000-0219. The exploitation appears to be easy. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 303 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 105412 (Red Hat Single User Mode), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Red Hat Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (105412). See 2600, 9965, 9969 and 13960 for similar entries.

Productinfo

Type

• Operating System

Vendor

• Red Hat

Name

• Linux

Version

• 6.0

License

• open-source

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CPE 2.2info

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