Vulnerability Description
A remote code execution (RCE) vulnerability exists in the lightning-ai/pytorch-lightning library version 2.2.1 due to improper handling of deserialized user input and mismanagement of dunder attributes by the `deepdiff` library. The library uses `deepdiff.Delta` objects to modify application state based on frontend actions. However, it is possible to bypass the intended restrictions on modifying dunder attributes, allowing an attacker to construct a serialized delta that passes the deserializer whitelist and contains dunder attributes. When processed, this can be exploited to access other modules, classes, and instances, leading to arbitrary attribute write and total RCE on any self-hosted pytorch-lightning application in its default configuration, as the delta endpoint is enabled by default.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Lightningai | Pytorch Lightning | < 2.3.3 |
Related Weaknesses (CWE)
References
- https://github.com/lightning-ai/pytorch-lightning/commit/330af381de88cff17515418
- https://huntr.com/bounties/486add92-275e-4a7b-92f9-42d84bc759daExploitThird Party Advisory
- https://huntr.com/bounties/486add92-275e-4a7b-92f9-42d84bc759daExploitThird Party Advisory
FAQ
What is CVE-2024-5452?
CVE-2024-5452 is a vulnerability with a CVSS score of 9.8 (CRITICAL). A remote code execution (RCE) vulnerability exists in the lightning-ai/pytorch-lightning library version 2.2.1 due to improper handling of deserialized user input and mismanagement of dunder attribute...
How severe is CVE-2024-5452?
CVE-2024-5452 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2024-5452?
Check the references section above for vendor advisories and patch information. Affected products include: Lightningai Pytorch Lightning.