CVE-2019-19882 : Vulnerability Insights and Analysis
Learn about CVE-2019-19882, a vulnerability in shadow 4.8 that allows local users on Gentoo, Arch Linux, and Void Linux to gain root access due to misconfigured setuid programs. Find out how to mitigate this security risk.
A vulnerability in shadow 4.8 affects Gentoo, Arch Linux, and Void Linux, allowing local users to gain root access due to misconfigured setuid programs.
Understanding CVE-2019-19882
What is CVE-2019-19882?
In certain circumstances, shadow 4.8 is vulnerable, enabling unprivileged local users to escalate their privileges to root on Gentoo, Arch Linux, and Void Linux systems.
The Impact of CVE-2019-19882
The vulnerability in shadow 4.8 allows local users to exploit account management tools and gain root access, posing a significant security risk to affected systems.
Technical Details of CVE-2019-19882
Vulnerability Description
- Shadow 4.8, when compiled with specific configurations, allows unprivileged local users to escalate privileges to root using account management tools.
Affected Systems and Versions
- Gentoo, Arch Linux, and Void Linux systems running shadow 4.8 are impacted by this vulnerability.
Exploitation Mechanism
- Misconfigured setuid programs in shadow 4.8 enable local users to exploit account management tools and escalate privileges to root.
Mitigation and Prevention
Immediate Steps to Take
- Update shadow to a patched version that addresses the vulnerability.
- Implement proper PAM configurations for setuid account management tools.
Long-Term Security Practices
- Regularly review and update system configurations to prevent misconfigurations that could lead to privilege escalation.
Patching and Updates
- Stay informed about security advisories and promptly apply patches to mitigate known vulnerabilities.