CVE-2025-6386: Timing Attack Vulnerability in parisneo/lollms
The parisneo/lollms repository is affected by a timing attack vulnerability in the authenticateuser function within the lollmsauthentication.py file. This vulnerability allows attackers to enumerate valid usernames and guess passwords incrementally by analyzing response time differences. The affected version is the latest, and the issue is resolved in commit f78437f. The vulnerability arises from the use of Python's default string equality operator for password comparison, which compares characters sequentially and exits on the first mismatch, leading to variable response times based on the number of matching initial characters.
Other sources
The parisneo/lollms repository is affected by a timing attack vulnerability in the authenticateuser function within the lollmsauthentication.py file. This vulnerability allows attackers to enumerate valid usernames and guess passwords incrementally by analyzing response time differences. The affected version is the latest, and the issue is resolved in version 20.1. The vulnerability arises from the use of Python's default string equality operator for password comparison, which compares characters sequentially and exits on the first mismatch, leading to variable response times based on the number of matching initial characters.
— MITRE
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-6386?
CVE-2025-6386 is classified as a medium severity vulnerability due to its potential for exploitation via timing attacks.
How does the timing attack in CVE-2025-6386 work?
The timing attack in CVE-2025-6386 allows attackers to enumerate valid usernames and guess passwords by measuring response times in the `authenticate_user` function.
What versions of the parisneo/lollms repository are affected by CVE-2025-6386?
CVE-2025-6386 affects versions of the parisneo/lollms repository starting from version 20.1.
How can I fix CVE-2025-6386 in my application?
To mitigate CVE-2025-6386, implement constant-time response techniques in the `authenticate_user` function to ensure response times do not vary based on input.
What are the potential risks associated with not addressing CVE-2025-6386?
Failing to address CVE-2025-6386 could lead to unauthorized access to user accounts through username enumeration and incremental password guessing.