CVE-2021-24040

Public Exploit

Description

Due to use of unsafe YAML deserialization logic, an attacker with the ability to modify local YAML configuration files could provide malicious input, resulting in remote code execution or similar risks. This issue affects ParlAI prior to v1.1.0.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 31.82% Top 5%
Third-Party Advisory packetstormsecurity.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: Facebook ParlAI
Published at:
Updated at:

References

Link Tags
https://github.com/facebookresearch/ParlAI/releases/tag/v1.1.0 third party advisory release notes
https://github.com/facebookresearch/ParlAI/security/advisories/GHSA-m87f-9fvv-2mgg third party advisory patch
http://packetstormsecurity.com/files/164136/Facebook-ParlAI-1.0.0-Code-Execution-Deserialization.html exploit vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-24040?
CVE-2021-24040 has been scored as a critical severity vulnerability.
How to fix CVE-2021-24040?
To fix CVE-2021-24040, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-24040 being actively exploited in the wild?
It is possible that CVE-2021-24040 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~32% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-24040?
CVE-2021-24040 affects Facebook ParlAI.
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