FreeBSD/NetBSD/OpenBSD File Descriptor /proc/pid/mem privileges management

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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in FreeBSD, NetBSD and OpenBSD. This issue affects some unknown processing of the file /proc/pid/mem of the component File Descriptor Handler. Performing a manipulation results in privileges management. This vulnerability is reported as CVE-2000-0094. Moreover, an exploit is present. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in FreeBSD, NetBSD and OpenBSD (Operating System) (the affected version is unknown). This affects an unknown code of the file /proc/pid/mem of the component File Descriptor Handler. The manipulation with an unknown input leads to a privileges management vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

procfs in BSD systems allows local users to gain root privileges by modifying the /proc/pid/mem interface via a modified file descriptor for stderr.

The weakness was disclosed 01/21/2000 by FEAR Advisories (Website). It is possible to read the advisory at ftp.netbsd.org. This vulnerability is uniquely identified as CVE-2000-0094. The exploitability is told to be easy. Attacking locally is a requirement. No form of authentication is needed for exploitation. Technical details and a public exploit are known. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

A public exploit has been developed in ANSI C and been published immediately after the advisory. The exploit is shared for download at downloads.securityfocus.com. It is declared as proof-of-concept.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (3995), Exploit-DB (19726), SecurityFocus (BID 940†), OSVDB (20760†) and Vulnerability Center (SBV-23329†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Name

License

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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VulDB Base Score: 🔍
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Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Timelineinfo

01/21/2000 🔍
01/21/2000 +0 days 🔍
01/21/2000 +0 days 🔍
01/21/2000 +0 days 🔍
02/16/2000 +26 days 🔍
11/13/2005 +2097 days 🔍
08/31/2009 +1386 days 🔍
06/23/2014 +1757 days 🔍
06/24/2024 +3653 days 🔍

Sourcesinfo

Product: freebsd.org

Advisory: ftp.netbsd.org
Researcher: FEAR Advisories
Status: Not defined

CVE: CVE-2000-0094 (🔍)
GCVE (CVE): GCVE-0-2000-0094
GCVE (VulDB): GCVE-100-15327
X-Force: 3995
SecurityFocus: 940 - Multiple Vendor BSD /proc File Sytem Vulnerability
OSVDB: 20760 - Multiple BSD procfs /proc/[pid]/ setuid Binary Privileged Command Execution
Vulnerability Center: 23329 - Multiple BSD Vendors Procfs Local Root Privileges Escalation Vulnerability, High

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

Entryinfo

Created: 06/23/2014 17:37
Updated: 06/24/2024 00:15
Changes: 06/23/2014 17:37 (58), 02/13/2017 10:32 (8), 06/24/2024 00:15 (17)
Complete: 🔍
Cache ID: 216::103

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