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CVE-2020-13882

Status Candidate

Overview

CISOfy Lynis before 3.0.0 has Incorrect Access Control because of a TOCTOU race condition. The routine to check the log and report file permissions was not working as intended and could be bypassed locally. Because of the race, an unprivileged attacker can set up a log and report file, and control that up to the point where the specific routine is doing its check. After that, the file can be removed, recreated, and used for additional attacks.

Related Files

Lynis Auditing Tool 3.0.0
Posted Jun 18, 2020
Authored by Michael Boelen | Site cisofy.com

Lynis is an auditing tool for Unix (specialists). It scans the system and available software to detect security issues. Beside security related information it will also scan for general system information, installed packages and configuration mistakes. This software aims in assisting automated auditing, software patch management, vulnerability and malware scanning of Unix based systems.

Changes: This is a major release of Lynis and includes several big changes, including addressed two security issues.
tags | tool, scanner
systems | unix
advisories | CVE-2019-13033, CVE-2020-13882
SHA-256 | 3cc165f9007ba41de6d0b693a1167dbaf0179085f9506dcba64b4b8e37e1bda2
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