Vulnerability Details : CVE-2021-24040
Potential exploit
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.
Vulnerability category: Execute code
Products affected by CVE-2021-24040
- cpe:2.3:a:facebook:parlai:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-24040
31.82%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 96 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-24040
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2021-24040
-
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.Assigned by:
- cve-assign@fb.com (Secondary)
- nvd@nist.gov (Primary)
References for CVE-2021-24040
-
http://packetstormsecurity.com/files/164136/Facebook-ParlAI-1.0.0-Code-Execution-Deserialization.html
Facebook ParlAI 1.0.0 Code Execution / Deserialization ≈ Packet StormExploit;Third Party Advisory;VDB Entry
-
https://github.com/facebookresearch/ParlAI/security/advisories/GHSA-m87f-9fvv-2mgg
Deserialization of Untrusted Data in parlai · Advisory · facebookresearch/ParlAI · GitHubPatch;Third Party Advisory
-
https://github.com/facebookresearch/ParlAI/releases/tag/v1.1.0
Release v1.1.0 · facebookresearch/ParlAI · GitHubRelease Notes;Third Party Advisory
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