Vulnerability-Lookup

GHSA-3PQH-P72C-FJ85

Vulnerability from github – Published: 2021-11-19 19:34 – Updated: 2025-01-29 16:56

Summary

Improper Preservation of Permissions in github.com/cloudflare/cfrpki/cmd/octorpki

Details

Impact

When copying files with rsync, octorpki uses the "-a" flag 0, which forces rsync to copy binaries with the suid bit set as root. Since the provided service definition defaults to root (https://github.com/cloudflare/cfrpki/blob/master/package/octorpki.service) this could allow for a vector, when combined with another vulnerability that causes octorpki to process a malicious TAL file, for a local privilege escalation.

For more information

If you have any questions or comments about this advisory email us at security@cloudflare.com

Severity

7.5 (High)


                  
                    CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H

Show details on source website

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/cloudflare/cfrpki"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.4.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-3978"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-269",
      "CWE-281"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-11-19T13:10:27Z",
    "nvd_published_at": "2025-01-29T10:15:07Z",
    "severity": "HIGH"
  },
  "details": "### Impact\n\nWhen copying files with rsync, octorpki uses the \"-a\" flag 0, which forces rsync to copy binaries with the suid bit set as root. Since the provided service definition defaults to root (https://github.com/cloudflare/cfrpki/blob/master/package/octorpki.service) this could allow for a vector, when combined with another vulnerability that causes octorpki to process a malicious TAL file, for a local privilege escalation.  \n\n## For more information\n\nIf you have any questions or comments about this advisory email us at security@cloudflare.com",
  "id": "GHSA-3pqh-p72c-fj85",
  "modified": "2025-01-29T16:56:35Z",
  "published": "2021-11-19T19:34:26Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/cloudflare/cfrpki/security/advisories/GHSA-3pqh-p72c-fj85"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3978"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/cloudflare/cfrpki"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Improper Preservation of Permissions in github.com/cloudflare/cfrpki/cmd/octorpki"
}

CVE-2021-3978 (GCVE-0-2021-3978)

Vulnerability from cvelistv5 – Published: 2025-01-29 10:00 – Updated: 2025-02-12 16:03

Title

Improper Preservation of Permissions in github.com/cloudflare/cfrpki/cmd/octorpki

Summary

When copying files with rsync, octorpki uses the "-a" flag 0, which forces rsync to copy binaries with the suid bit set as root. Since the provided service definition defaults to root ( https://github.com/cloudflare/cfrpki/blob/master/package/octorpki.service ) this could allow for a vector, when combined with another vulnerability that causes octorpki to process a malicious TAL file, for a local privilege escalation.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-01-29 14:19 UTC

CWE

CWE-269 - Improper Privilege Management

Assigner

cloudflare mitre root

References

1 reference

URL	Tags
https://github.com/cloudflare/cfrpki/security/adv…

Impacted products

1 product

Vendor	Product	Version
Cloudflare	octorpki	Affected: 0 , < v1.4.2 (semver)

Credits

Ties de Kock

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
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                "id": "CVE-2021-3978",
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                  },
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                  },
                  {
                    "Technical Impact": "total"
                  }
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                "role": "CISA Coordinator",
                "timestamp": "2025-01-29T14:19:06.799392Z",
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    "cna": {
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          "defaultStatus": "unaffected",
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          ],
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      ],
      "credits": [
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          "lang": "en",
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              "type": "text/html",
              "value": "When copying files with rsync, octorpki uses the \"-a\" flag 0, which forces rsync to copy binaries with the suid bit set as root. Since the provided service definition defaults to root (\u003ca target=\"_blank\" rel=\"nofollow\" href=\"https://github.com/cloudflare/cfrpki/blob/master/package/octorpki.service\"\u003ehttps://github.com/cloudflare/cfrpki/blob/master/package/octorpki.service\u003c/a\u003e) this could allow for a vector, when combined with another vulnerability that causes octorpki to process a malicious TAL file, for a local privilege escalation."
            }
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      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
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        "discovery": "EXTERNAL"
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Sightings

Author	Source	Type	Date	Other

Nomenclature

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.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.