CVE-2017-14179 : Exploit Details and Defense Strategies

Apport before version 2.13 has a vulnerability that allows local users to escalate privileges, launch denial of service attacks, or escape from containers.

Understanding CVE-2017-14179

In versions prior to 2.13, Apport has a vulnerability in its handling of crashes that occur in a PID namespace, enabling various malicious activities.

What is CVE-2017-14179?

CVE-2017-14179 is a security vulnerability in Apport that allows local users to exploit the system and potentially gain root privileges or disrupt system resources.

The Impact of CVE-2017-14179

The vulnerability in Apport could lead to a denial of service attack by exhausting system resources, potential privilege escalation, and escaping from containers, posing a significant security risk.

Technical Details of CVE-2017-14179

Apport's vulnerability and its implications are detailed below.

Vulnerability Description

Apport before version 2.13 mishandles crashes from a PID namespace, enabling local users to create specific files with root privileges, facilitating various attacks.

Affected Systems and Versions

Product: Apport
Vendor: n/a
Versions Affected: before 2.13

Exploitation Mechanism

The vulnerability allows attackers to create files with root privileges, leading to denial of service attacks, potential privilege escalation, and container escape.

Mitigation and Prevention

Protecting systems from CVE-2017-14179 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Apport to version 2.13 or later to mitigate the vulnerability.
Monitor system logs for any suspicious activities.

Long-Term Security Practices

Implement the principle of least privilege to restrict user access.
Regularly update and patch software to address security vulnerabilities.
Conduct security audits and penetration testing to identify and remediate weaknesses.
Educate users on best security practices to prevent exploitation.
Utilize container security measures to isolate and secure applications.

Patching and Updates

Ensure timely patching and updates for Apport to address the vulnerability and enhance system security.