PT-2020-15683 · Trousers+6 · Trousers+6

Matthias Gerstner · Published 2020-08-13 · Updated 2024-08-24 · CVE-2020-24331

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions TrouSerS versions prior to 0.3.14

Description An issue was discovered where the tss user still has read and write access to the /etc/tcsd.conf file, which contains various settings related to the tcsd daemon, if the daemon is started with root privileges.

Recommendations For versions prior to 0.3.14, consider restricting access to the /etc/tcsd.conf file to prevent unauthorized modifications. As a temporary workaround, consider running the tcsd daemon with reduced privileges to minimize the risk of exploitation.

Exploit

Fix

Improper Privilege Management

Weakness Enumeration

CWE-269

Related Identifiers

ALSA-2021:1627

ALT-PU-2021-1148

ALT-PU-2021-1350

ALT-PU-2024-11154

AZL-6926

CESA-2021_1627

CVE-2020-24331

MGASA-2021-0297

RHSA-2021:1627

RHSA-2021_1627

RLSA-2021:1627

Affected Products

Alt Linux

Almalinux

Centos

Debian

Red Hat

Rocky Linux

Trousers

References · 29

• 🔥 http://openwall.com/lists/oss-security/2020/08/14/1 · Exploit
• 🔥 https://sourceforge.net/p/trousers/mailman/message/37015817 · Exploit
• 🔥 https://bugzilla.suse.com/show_bug.cgi?id=1164472 · Exploit
• https://security-tracker.debian.org/tracker/CVE-2020-24331 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-24331 · Security Note
• https://seclists.org/oss-sec/2020/q2/att-135/tcsd_fixes.patch · Patch
• https://lists.fedoraproject.org/archives/list/[e-mail]/thread/SSDL7COIFCZQMUBNAASNMKMX7W5JUHRD · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-24331 · Security Note
• https://advisories.mageia.org/MGASA-2021-0297.html · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-24331 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SSDL7COIFCZQMUBNAASNMKMX7W5JUHRD · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2021-0297 · Vendor Advisory
• https://errata.almalinux.org/8/ALSA-2021-1627.html · Vendor Advisory
• https://osv.dev/vulnerability/ALSA-2021:1627 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-24331 · Vendor Advisory