CVE-2020-10174 : Exploit Details and Defense Strategies

Timeshift before version 20.03 is affected by a vulnerability that allows an attacker to execute arbitrary code with full root privileges. The issue arises from the unsafe reuse of a temporary directory, enabling the replacement of scripts with malicious ones.

Understanding CVE-2020-10174

This CVE details a security flaw in Timeshift that can be exploited to execute unauthorized scripts with elevated privileges.

What is CVE-2020-10174?

The vulnerability in Timeshift allows an attacker to manipulate scripts executed by the application, potentially leading to the execution of malicious code with root-level access.

The Impact of CVE-2020-10174

The security issue in Timeshift poses a significant risk as it enables an attacker to gain full root privileges by replacing legitimate scripts with malicious ones.

Technical Details of CVE-2020-10174

Timeshift's vulnerability stems from the unsafe reuse of a temporary directory, facilitating the execution of unauthorized scripts with elevated permissions.

Vulnerability Description

The flaw in Timeshift allows an attacker to exploit a race condition, replacing legitimate scripts with malicious ones in the /tmp/timeshift directory, leading to the execution of unauthorized code with full root privileges.

Affected Systems and Versions

Timeshift versions before 20.03 are affected by this vulnerability.

Exploitation Mechanism

Attackers can manipulate scripts executed by Timeshift in the /tmp/timeshift directory, potentially executing malicious code with elevated privileges.

Mitigation and Prevention

To address CVE-2020-10174, users and administrators should take immediate steps and implement long-term security practices to prevent exploitation.

Immediate Steps to Take

Update Timeshift to version 20.03 or newer to mitigate the vulnerability.
Monitor the /tmp/timeshift directory for any unauthorized script modifications.

Long-Term Security Practices

Regularly review and update security configurations to prevent unauthorized script execution.
Implement strict file permissions and access controls to limit the impact of potential attacks.

Patching and Updates

Apply patches and updates provided by Timeshift promptly to address security vulnerabilities and enhance system protection.