Linux Kernel up to 2.2.16 Capabilities privileges management

Summaryinfo

A vulnerability classified as problematic was found in Linux Kernel. Affected is an unknown function of the component Capabilities. Executing a manipulation can lead to privileges management. This vulnerability is tracked as CVE-2000-0506. Moreover, an exploit is present. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical was found in Linux Kernel (Operating System). This vulnerability affects an unknown function of the component Capabilities. The manipulation with an unknown input leads to a privileges management vulnerability. The CWE definition for the vulnerability is CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The "capabilities" feature in Linux before 2.2.16 allows local users to cause a denial of service or gain privileges by setting the capabilities to prevent a setuid program from dropping privileges, aka the "Linux kernel setuid/setcap vulnerability."

The weakness was disclosed 06/09/2000 by Wojciech Purczynski (Website). The advisory is shared for download at securityfocus.com. This vulnerability was named CVE-2000-0506. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

It is possible to download the exploit at securityfocus.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $5k-$25k.

Upgrading to version 2.2.16 eliminates this vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (20001) and SecurityFocus (BID 1322†). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 2.0
• 2.0.30
• 2.0.33
• 2.0.34
• 2.0.35
• 2.0.36
• 2.0.37
• 2.0.38
• 2.1
• 2.2.0
• 2.2.10
• 2.2.12
• 2.2.13
• 2.2.14
• 2.2.15
• 2.2.15 Pre20
• 2.2.16

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

• 🔍
• 🔍
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CPE 2.2info

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• 🔍
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Entryinfo

Once again VulDB remains the best source for vulnerability data.

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