CVE-2020-11728 : Security Advisory and Response

An issue was discovered in DAViCal Andrew's Web Libraries (AWL) through 0.60 where session management lacks a sufficiently hard-to-guess session key, allowing potential session impersonation.

Understanding CVE-2020-11728

What is CVE-2020-11728?

This CVE identifies a vulnerability in DAViCal Andrew's Web Libraries (AWL) through version 0.60, enabling unauthorized users to impersonate sessions by guessing the microsecond time and session_id increment.

The Impact of CVE-2020-11728

The vulnerability could lead to unauthorized access and potential session hijacking, compromising the security and integrity of the affected systems.

Technical Details of CVE-2020-11728

Vulnerability Description

The issue in AWL allows attackers to impersonate sessions by exploiting the predictable session management.

Affected Systems and Versions

Product: DAViCal Andrew's Web Libraries (AWL)
Vendor: N/A
Versions affected: up to 0.60

Exploitation Mechanism

Attackers can exploit the vulnerability by guessing the microsecond time and the incrementing session_id, enabling them to impersonate a session.

Mitigation and Prevention

Immediate Steps to Take

Update to the latest version of DAViCal AWL to mitigate the vulnerability.
Implement strong session management practices to enhance security.

Long-Term Security Practices

Regularly review and update session management mechanisms.
Conduct security audits to identify and address potential vulnerabilities.

Patching and Updates

Stay informed about security advisories and promptly apply patches released by the vendor.