Vulnerability-Lookup

Vulnerability from bitnami_vulndb

Published

2024-03-06 10:57

Modified

2026-09-08 08:34

Summary

Incorrect Authorization with specially crafted requests

Details

Pomerium is an open source identity-aware access proxy. Envoy, which Pomerium is based on, contains two authorization related vulnerabilities CVE-2021-32777 and CVE-2021-32779. This may lead to incorrect routing or authorization policy decisions. With specially crafted requests, incorrect authorization or routing decisions may be made by Pomerium. Pomerium v0.14.8 and v0.15.1 contain an upgraded envoy binary with these vulnerabilities patched. This issue can only be triggered when using path prefix based policy. Removing any such policies should provide mitigation.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "envoy",
        "purl": "pkg:bitnami/envoy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.16.5"
            },
            {
              "introduced": "1.17.0"
            },
            {
              "fixed": "1.17.4"
            },
            {
              "introduced": "1.18.0"
            },
            {
              "fixed": "1.18.4"
            },
            {
              "introduced": "1.19.0"
            },
            {
              "fixed": "1.19.1"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-39206"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*",
      "cpe:2.3:a:envoyproxy:envoy:1.19.0:*:*:*:*:*:*:*"
    ],
    "severity": "High"
  },
  "details": "Pomerium is an open source identity-aware access proxy. Envoy, which Pomerium is based on, contains two authorization related vulnerabilities CVE-2021-32777 and CVE-2021-32779. This may lead to incorrect routing or authorization policy decisions. With specially crafted requests, incorrect authorization or routing decisions may be made by Pomerium. Pomerium v0.14.8 and v0.15.1 contain an upgraded envoy binary with these vulnerabilities patched. This issue can only be triggered when using path prefix based policy. Removing any such policies should provide mitigation.",
  "id": "BIT-envoy-2021-39206",
  "modified": "2026-09-08T08:34:36.952Z",
  "published": "2024-03-06T10:57:12.174Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-6g4j-5vrw-2m8h"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-r222-74fw-jqr9"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/pomerium/pomerium/security/advisories/GHSA-cfc2-wjcm-c8fm"
    },
    {
      "type": "WEB",
      "url": "https://groups.google.com/g/envoy-announce/c/5xBpsEZZDfE/m/wD05NZBbAgAJ"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-39206"
    }
  ],
  "schema_version": "1.5.0",
  "summary": "Incorrect Authorization with specially crafted requests"
}

CVE-2021-39206 (GCVE-0-2021-39206)

Vulnerability from cvelistv5 – Published: 2021-09-09 22:10 – Updated: 2024-08-04 01:58

Title

Incorrect Authorization with specially crafted requests

Summary

Severity

8.6 (High)


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

CWE

CWE-863 - Incorrect Authorization

Assigner

GitHub_M mitre root

References

4 references

URL	Tags
https://github.com/envoyproxy/envoy/security/advi…	x_refsource_MISC
https://github.com/envoyproxy/envoy/security/advi…	x_refsource_MISC
https://groups.google.com/g/envoy-announce/c/5xBp…	x_refsource_MISC
https://github.com/pomerium/pomerium/security/adv…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
pomerium	pomerium	Affected: >= 0.11.0, < 0.14.8 Affected: >= 0.15.0, < 0.15.1

Show details on NVD website

JSON

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        }
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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.

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