CVE-2020-36569 : Exploit Details and Defense Strategies
Learn about CVE-2020-36569, an authentication bypass vulnerability in github.com/nanobox-io/golang-nanoauth that allows global bypass of authentication. Find out the impact, affected systems, versions, and mitigation steps.
CVE-2020-36569 is an authentication bypass vulnerability in github.com/nanobox-io/golang-nanoauth that allows global bypass of authentication under specific conditions.
Understanding CVE-2020-36569
This vulnerability affects the authentication mechanism of github.com/nanobox-io/golang-nanoauth, potentially leading to unauthorized access.
What is CVE-2020-36569?
The vulnerability allows authentication to be bypassed globally in github.com/nanobox-io/golang-nanoauth when ListenAndServe is called with an empty token between specific versions.
The Impact of CVE-2020-36569
The impact of this vulnerability is the potential for unauthorized access to the affected system due to the authentication bypass.
Technical Details of CVE-2020-36569
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability lies in the authentication mechanism of github.com/nanobox-io/golang-nanoauth, specifically in the handling of empty tokens during the ListenAndServe function.
Affected Systems and Versions
- Affected Vendor: github.com/nanobox-io/golang-nanoauth
- Affected Product: github.com/nanobox-io/golang-nanoauth
- Affected Versions: Between v0.0.0-20160722212129-ac0cc4484ad4 and v0.0.0-20200131131040-063a3fb69896
- Program Routines: Auth.ServeHTTP, Auth.ListenAndServeTLS, Auth.ListenAndServe, ListenAndServe, ListenAndServeTLS
Exploitation Mechanism
The vulnerability can be exploited by calling the ListenAndServe function with an empty token, allowing unauthorized users to bypass authentication.
Mitigation and Prevention
To address CVE-2020-36569, follow these mitigation steps:
Immediate Steps to Take
- Update the affected software to a version where the vulnerability is patched.
- Implement additional authentication mechanisms to mitigate the risk of bypass.
Long-Term Security Practices
- Regularly review and update authentication mechanisms in software.
- Conduct security audits to identify and address potential vulnerabilities.
Patching and Updates
Ensure that the software is regularly updated with the latest security patches to prevent exploitation of known vulnerabilities.