CVE-2017-12636 Explained : Impact and Mitigation

Apache CouchDB versions prior to 1.7.0 and 2.x before 2.1.1 allow administrators to execute unrestricted shell commands, potentially leading to information disclosure.

Understanding CVE-2017-12636

This CVE affects Apache CouchDB, enabling admins to run arbitrary shell commands as the CouchDB user.

What is CVE-2017-12636?

Administrators with privileges in CouchDB can customize the server via HTTP(S), allowing the execution of system-level executables and potentially harmful shell commands.

The Impact of CVE-2017-12636

The vulnerability permits the execution of unrestricted shell commands by administrators, including the downloading and execution of scripts from public sources.

Technical Details of CVE-2017-12636

Apache CouchDB's security flaw allows for unauthorized command execution with serious implications.

Vulnerability Description

Admin users can run arbitrary shell commands, posing a risk of information disclosure.

Affected Systems and Versions

Apache CouchDB versions 1.2.0 to 1.6.1
Apache CouchDB versions 2.0.0 to 2.1.0

Exploitation Mechanism

The flaw enables administrators to execute shell commands, potentially compromising system security.

Mitigation and Prevention

Taking immediate action and implementing long-term security measures are crucial to safeguard against CVE-2017-12636.

Immediate Steps to Take

Upgrade to Apache CouchDB versions 1.7.0 or higher.
Restrict administrative privileges to minimize the risk of unauthorized command execution.
Monitor and restrict network access to CouchDB servers.

Long-Term Security Practices

Regularly review and update server configurations.
Conduct security audits and penetration testing to identify vulnerabilities.
Educate administrators on secure configuration practices.

Patching and Updates

Apply security patches promptly to address known vulnerabilities in Apache CouchDB.