CVE-2019-3462 : Vulnerability Insights and Analysis
Learn about CVE-2019-3462, a vulnerability in apt versions 1.4.8 and earlier used in Debian Stretch and Ubuntu, enabling a man-in-the-middle attacker to execute remote code. Find mitigation steps and preventive measures here.
A vulnerability in the HTTP transport method of apt versions 1.4.8 and earlier could allow a man-in-the-middle attacker to execute remote code on affected systems.
Understanding CVE-2019-3462
Inadequate sanitation of the 302 redirect field in the HTTP transport method of apt versions 1.4.8 and earlier has the potential to allow a man-in-the-middle (MITM) attacker to inject content, which could result in the execution of remote code on the targeted machine.
What is CVE-2019-3462?
This CVE refers to a vulnerability in the apt package manager used in Debian Stretch and Ubuntu, allowing a MITM attacker to inject content and potentially execute remote code on the target machine.
The Impact of CVE-2019-3462
The vulnerability could lead to a man-in-the-middle attacker injecting malicious content, resulting in the execution of remote code on the compromised system.
Technical Details of CVE-2019-3462
Vulnerability Description
The flaw arises from inadequate sanitation of the 302 redirect field in the HTTP transport method of apt versions 1.4.8 and earlier, enabling a MITM attacker to inject content.
Affected Systems and Versions
- Product: apt as used in Debian Stretch and Ubuntu
- Vendor: Debian GNU/Linux
- Versions Affected: 1.4.8 and earlier
Exploitation Mechanism
The vulnerability allows a MITM attacker to manipulate the 302 redirect field in the HTTP transport method, injecting malicious content that could lead to remote code execution.
Mitigation and Prevention
Immediate Steps to Take
- Update apt to the latest version to patch the vulnerability.
- Monitor network traffic for any suspicious activity.
- Implement secure communication channels to prevent MITM attacks.
Long-Term Security Practices
- Regularly update software and apply security patches promptly.
- Conduct security audits and penetration testing to identify and address vulnerabilities.
Patching and Updates
Ensure that all systems running affected versions of apt are updated to the patched versions to mitigate the risk of exploitation.