CVE-2020-8446 Explained : Impact and Mitigation

OSSEC-HIDS 2.7 through 3.5.0 is vulnerable to path traversal via crafted syscheck messages, allowing local users to write to the analysisd UNIX domain socket.

Understanding CVE-2020-8446

In this CVE, a vulnerability in the OSSEC-HIDS server component allows for path traversal with write access, posing a security risk.

What is CVE-2020-8446?

OSSEC-HIDS 2.7 through 3.5.0's server component, ossec-analysisd, is susceptible to path traversal via specially crafted syscheck messages sent to the analysisd UNIX domain socket by a local user.

The Impact of CVE-2020-8446

This vulnerability could be exploited by a local user to write to the analysisd UNIX domain socket, potentially leading to unauthorized access or manipulation of log analysis processes.

Technical Details of CVE-2020-8446

This section delves into the specifics of the vulnerability.

Vulnerability Description

The flaw in OSSEC-HIDS allows a local user to perform path traversal with write access through manipulated syscheck messages sent to the analysisd UNIX domain socket.

Affected Systems and Versions

Systems running OSSEC-HIDS versions 2.7 through 3.5.0 are impacted.

Exploitation Mechanism

A local user can exploit this vulnerability by sending specially crafted syscheck messages directly to the analysisd UNIX domain socket.

Mitigation and Prevention

Protecting systems from CVE-2020-8446 requires immediate action and long-term security measures.

Immediate Steps to Take

Apply vendor patches or updates to mitigate the vulnerability.
Monitor and restrict access to the analysisd UNIX domain socket.

Long-Term Security Practices

Implement the principle of least privilege to limit user access rights.
Regularly review and update security configurations to prevent similar vulnerabilities.

Patching and Updates

Stay informed about security advisories and apply patches promptly to address known vulnerabilities.