Nicholas Marriott tmux 1.3/1.4 access control

CVSS Meta Temp Score
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CTI Interest Score
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5.6$0-$5k0.00

A vulnerability, which was classified as problematic, has been found in Nicholas Marriott tmux 1.3/1.4. This issue affects some unknown functionality. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

tmux 1.3 and 1.4 does not properly drop group privileges, which allows local users to gain utmp group privileges via a filename to the -S command-line option.

The weakness was presented 03/31/2011 by ph0x90bic (Website). It is possible to read the advisory at xforce.iss.net. The identification of this vulnerability is CVE-2011-1496. The exploitation is known to be easy. Attacking locally is a requirement. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

A public exploit has been developed by ph0x90bic and been published 2 weeks after the advisory. The exploit is available at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 53480 (Fedora 13 : tmux-1.4-3.fc13 (2011-5156)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (66693), Tenable (53480) and Exploit-DB (17147).

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.6

VulDB Base Score: 5.9
VulDB Temp Score: 5.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: ph0x90bic
Download: 🔍

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Price Prediction: 🔍
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Nessus ID: 53480
Nessus Name: Fedora 13 : tmux-1.4-3.fc13 (2011-5156)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 69556
OpenVAS Name: Debian Security Advisory DSA 2212-1 (tmux)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Timelineinfo

03/21/2011 🔍
03/31/2011 +10 days 🔍
04/08/2011 +7 days 🔍
04/08/2011 +0 days 🔍
04/09/2011 +1 days 🔍
04/11/2011 +1 days 🔍
04/11/2011 +0 days 🔍
04/12/2011 +1 days 🔍
04/18/2011 +6 days 🔍
04/19/2011 +1 days 🔍
03/23/2015 +1434 days 🔍
11/02/2021 +2416 days 🔍

Sourcesinfo

Advisory: dsa-2212
Researcher: ph0x90bic
Status: Confirmed

CVE: CVE-2011-1496 (🔍)
OVAL: 🔍

X-Force: 66693
Vulnerability Center: 30998 - Tmux Local Privilege Escalation when Invoked with -S Option, Low
SecurityFocus: 47283 - tmux '-S' Option Incorrect SetGID Local Privilege Escalation Vulnerability
Secunia: 44081
OSVDB: 71883 - tmux Group Privilege Dropping Weakness Local Privilege Escalation

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

Entryinfo

Created: 03/23/2015 16:50
Updated: 11/02/2021 20:27
Changes: 03/23/2015 16:50 (61), 03/21/2017 10:02 (17), 11/02/2021 20:11 (5), 11/02/2021 20:19 (1), 11/02/2021 20:27 (1)
Complete: 🔍

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