CVE-2020-15688 : Security Advisory and Response

This CVE involves a vulnerability in the HTTP Digest Authentication in the GoAhead web server before version 5.1.2, which could allow an unauthenticated remote attacker to bypass authentication via capture-replay attacks.

Understanding CVE-2020-15688

This CVE was published on July 23, 2020, and affects the GoAhead web server before version 5.1.2.

What is CVE-2020-15688?

The HTTP Digest Authentication in the GoAhead web server before version 5.1.2 is susceptible to replay attacks, enabling an unauthenticated remote attacker to bypass authentication through capture-replay if TLS is not utilized to secure the communication channel.

The Impact of CVE-2020-15688

The vulnerability could lead to unauthorized access to sensitive information and compromise the security of systems using the affected versions of the GoAhead web server.

Technical Details of CVE-2020-15688

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The HTTP Digest Authentication in the GoAhead web server before version 5.1.2 does not provide complete protection against replay attacks, allowing malicious actors to bypass authentication.

Affected Systems and Versions

Product: GoAhead web server
Vendor: N/A
Versions affected: All versions before 5.1.2

Exploitation Mechanism

The vulnerability can be exploited by unauthenticated remote attackers through capture-replay attacks if the communication channel is not secured using TLS.

Mitigation and Prevention

Protecting systems from CVE-2020-15688 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update the GoAhead web server to version 5.1.2 or later to mitigate the vulnerability.
Implement TLS to secure the communication channel and prevent capture-replay attacks.

Long-Term Security Practices

Regularly monitor for security updates and patches for the GoAhead web server.
Conduct security assessments and penetration testing to identify and address vulnerabilities proactively.

Patching and Updates

Ensure timely installation of security patches and updates provided by the GoAhead web server to address known vulnerabilities.