CVE-2020-24331

trousers: tss user still has read and write access to the /etc/tcsd.conf file if tcsd is started as root

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An issue was discovered in TrouSerS through 0.3.14. If the tcsd daemon is started with root privileges, the tss user still has read and write access to the /etc/tcsd.conf file (which contains various settings related to this daemon).

Se detectó un problema en TrouSerS versiones hasta 0.3.14. Si el demonio tcsd es iniciado con privilegios root, el usuario tss aún tiene acceso de lectura y escritura al archivo /etc/tcsd.conf (que contiene varias configuraciones relacionadas con este demonio)

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-08-13 CVE Reserved
2020-08-13 CVE Published
2023-03-08 EPSS Updated
2024-08-04 CVE Updated
2024-08-04 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-269: Improper Privilege Management

CAPEC

References (7)

URL	Tag	Source

URL	Date	SRC
http://www.openwall.com/lists/oss-security/2020/08/14/1	2024-08-04
https://bugzilla.suse.com/show_bug.cgi?id=1164472	2024-08-04
https://sourceforge.net/p/trousers/mailman/message/37015817	2024-08-04

URL	Date	SRC
https://seclists.org/oss-sec/2020/q2/att-135/tcsd_fixes.patch	2023-11-07

URL	Date	SRC
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SSDL7COIFCZQMUBNAASNMKMX7W5JUHRD	2023-11-07
https://access.redhat.com/security/cve/CVE-2020-24331	2021-05-18
https://bugzilla.redhat.com/show_bug.cgi?id=1870056	2021-05-18

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Trousers Project Search vendor "Trousers Project"		Trousers Search vendor "Trousers Project" for product "Trousers"				<= 0.3.14 Search vendor "Trousers Project" for product "Trousers" and version " <= 0.3.14"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				33 Search vendor "Fedoraproject" for product "Fedora" and version "33"		-		Affected