FreeBSD 3.5.1/4.1/4.1.1/4.2 CTL File procfs jail privileges management

CVSS Meta Temp Score
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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in FreeBSD 3.5.1/4.1/4.1.1/4.2. The affected element is the function jail of the file procfs of the component CTL File Handler. Executing a manipulation can lead to privileges management. This vulnerability is handled as CVE-2001-0061. Additionally, an exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in FreeBSD 3.5.1/4.1/4.1.1/4.2 (Operating System). It has been declared as critical. This vulnerability affects the function jail of the file procfs of the component CTL File Handler. 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:

procfs in FreeBSD and possibly other operating systems does not properly restrict access to per-process mem and ctl files, which allows local users to gain root privileges by forking a child process and executing a privileged process from the child, while the parent retains access to the child s address space.

The weakness was released 12/18/2000 by Joost Pol (Website). The advisory is shared for download at ftp.FreeBSD.org. This vulnerability was named CVE-2001-0061. The exploitation appears to be easy. The attack needs to be approached locally. No form of authentication is required for a successful exploitation. Technical details and also a exploit are known. The MITRE ATT&CK project declares the attack technique as T1068.

After immediately, there has been an exploit disclosed. It is declared as proof-of-concept.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (6106), SecurityFocus (BID 2130†) and OSVDB (1697†). Entries connected to this vulnerability are available at VDB-16397, VDB-16398 and VDB-82015. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 7.6

VulDB Base Score: 8.4
VulDB Temp Score: 7.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Timelineinfo

12/18/2000 🔍
12/18/2000 +0 days 🔍
12/18/2000 +0 days 🔍
02/12/2001 +56 days 🔍
02/21/2003 +739 days 🔍
07/03/2014 +4149 days 🔍
05/29/2018 +1426 days 🔍

Sourcesinfo

Product: freebsd.org

Advisory: ftp.FreeBSD.org
Researcher: Joost Pol
Status: Confirmed

CVE: CVE-2001-0061 (🔍)
GCVE (CVE): GCVE-0-2001-0061
GCVE (VulDB): GCVE-100-16396
X-Force: 6106 - procfs in FreeBSD could allow users to gain elevated privileges
SecurityFocus: 2130 - FreeBSD procfs Access Control Vulnerability
OSVDB: 1697 - FreeBSD procfs jail() Access Control Bypass

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 07/03/2014 10:49
Updated: 05/29/2018 09:20
Changes: 07/03/2014 10:49 (57), 05/29/2018 09:20 (6)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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