GHSA-M87F-9FVV-2MGG

Vulnerability from github – Published: 2021-09-13 20:05 – Updated: 2024-10-09 21:00
VLAI?
Summary
Deserialization of Untrusted Data in parlai
Details

Impact

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.

Patches

The issue can be patched by upgrading to v1.1.0 or later. It can also be patched by replacing YAML deserialization with equivalent safe_load calls.

References

  • https://github.com/facebookresearch/ParlAI/commit/507d066ef432ea27d3e201da08009872a2f37725
  • https://github.com/facebookresearch/ParlAI/commit/4374fa2aba383db6526ab36e939eb1cf8ef99879
  • https://anon-artist.github.io/blogs/blog3.html
Severity ?
8.4 (High)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L
5.6 (Medium)
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:L
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{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "parlai"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.1.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-39207"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-09-13T19:10:21Z",
    "nvd_published_at": "2021-09-10T23:15:00Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\nDue 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.\n\n### Patches\nThe issue can be patched by upgrading to v1.1.0 or later. It can also be patched by replacing YAML deserialization with equivalent safe_load calls.\n\n### References\n\n- https://github.com/facebookresearch/ParlAI/commit/507d066ef432ea27d3e201da08009872a2f37725\n- https://github.com/facebookresearch/ParlAI/commit/4374fa2aba383db6526ab36e939eb1cf8ef99879\n- https://anon-artist.github.io/blogs/blog3.html",
  "id": "GHSA-m87f-9fvv-2mgg",
  "modified": "2024-10-09T21:00:01Z",
  "published": "2021-09-13T20:05:39Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/facebookresearch/ParlAI/security/advisories/GHSA-m87f-9fvv-2mgg"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-39207"
    },
    {
      "type": "WEB",
      "url": "https://github.com/facebookresearch/ParlAI/commit/4374fa2aba383db6526ab36e939eb1cf8ef99879"
    },
    {
      "type": "WEB",
      "url": "https://github.com/facebookresearch/ParlAI/commit/507d066ef432ea27d3e201da08009872a2f37725"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-mwgj-7x7j-6966"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/facebookresearch/ParlAI"
    },
    {
      "type": "WEB",
      "url": "https://github.com/facebookresearch/ParlAI/releases/tag/v1.1.0"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/parlai/PYSEC-2021-330.yaml"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/parlai/PYSEC-2021-334.yaml"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/164136/Facebook-ParlAI-1.0.0-Code-Execution-Deserialization.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:L",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Deserialization of Untrusted Data in parlai"
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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