CVE-2024-42475 Cross-site request forgery in oauth
Attackers can guess low-entropy OAuth state values to perform CSRF attacks, linking user sessions to attacker resources.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2024-42475?
CVE-2024-42475 is a medium-severity vulnerability in CORDEA oauth, published on 15 Aug 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
In the OAuth library for nim prior to version 0.11, the `state` values generated by the `generateState` function do not have sufficient entropy. These can be successfully guessed by an attacker allowing them to perform a CSRF vs a user, associating the user's session with the attacker's protected resources. While `state` isn't exactly a cryptographic value, it should be generated in a cryptographically secure way. `generateState` should be using a CSPRNG. Version 0.11 modifies the `generateState` function to generate `state` values of at least 128 bits of entropy while using a CSPRNG.
Which versions are affected by CVE-2024-42475?
How do I fix CVE-2024-42475?
No fix has been published for CVE-2024-42475 yet. Limit exposure of the affected software until one is available.
Is CVE-2024-42475 being exploited?
There is no known exploitation of CVE-2024-42475 in the wild and no public exploit code.
Sources
Also known as GHSA-332c-q46h-fg8f.