CVE-2021-28373 : Security Advisory and Response
Learn about CVE-2021-28373, a critical security flaw in Tiny Tiny RSS before 2021-03-12 that allows unauthorized login via OTP code. Find out the impact, affected systems, and mitigation steps.
Tiny Tiny RSS (aka tt-rss) before 2021-03-12 had a vulnerability where an attacker could login using the OTP code without a valid password. Here's all you need to know about CVE-2021-28373.
Understanding CVE-2021-28373
This section will cover what CVE-2021-28373 entails, the impact it has, as well as the technical details regarding the vulnerability.
What is CVE-2021-28373?
The auth_internal plugin in Tiny Tiny RSS (aka tt-rss) allowed an unauthorized login via the OTP code without requiring a valid password before 2021-03-12. Although the vulnerability only affected the git master branch briefly, caution was advised for all end users.
The Impact of CVE-2021-28373
Exploitation of this vulnerability could result in unauthorized access to the system by bypassing the password requirement, potentially compromising user accounts and sensitive data.
Technical Details of CVE-2021-28373
Let's delve into the specifics of the CVE-2021-28373 vulnerability, including the description, affected systems and versions, as well as the exploitation mechanism.
Vulnerability Description
The auth_internal plugin in Tiny Tiny RSS allowed malicious actors to log in using the OTP code alone, without the need for a valid password, creating a security loophole.
Affected Systems and Versions
All instances of Tiny Tiny RSS (aka tt-rss) before the fix on 2021-03-12 were susceptible, particularly the git master branch during that time.
Exploitation Mechanism
By leveraging the OTP code, threat actors could gain unauthorized access to the system without a valid password, posing a significant security risk.
Mitigation and Prevention
Discover the necessary steps to mitigate the risks posed by CVE-2021-28373 and prevent potential security breaches in the future.
Immediate Steps to Take
Users are urged to update to the patched version post 2021-03-12 as a crucial step to eliminate the vulnerability and enhance system security.
Long-Term Security Practices
Implementing strong password policies, enabling multi-factor authentication, and regular security audits are vital to bolstering the overall security posture.
Patching and Updates
Regularly updating Tiny Tiny RSS to the latest stable version ensures that known vulnerabilities are patched and security enhancements are applied.