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Medium

Keylime: challenge-response protocol bypass during agent registration

Type: advisorySources: OSV

A flaw was found in the Keylime registrar that could allow a bypass of the challenge-response protocol during agent registration. This issue may allow an attacker to impersonate an agent and hide the true status of a monitored machine if the fake agent is added to the verifier list by a legitimate user, resulting in a breach of the integrity of the registrar database.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2023-38201
Confirmed fixed CVEs
Not specified
Updated in this feed
2 Nov 2026, 16:27 UTC · Revision 1

Source evidence

Keylime: challenge-response protocol bypass during agent registration

core-osv · Original source

Published 25 Aug 2023, 16:15 UTC

A flaw was found in the Keylime registrar that could allow a bypass of the challenge-response protocol during agent registration. This issue may allow an attacker to impersonate an agent and hide the true status of a monitored machine if the fake agent is added to the verifier list by a legitimate user, resulting in a breach of the integrity of the registrar database.

osv:CVE-2023-38201
Complete source record
{
  "id": "612fce2c05f733a601356a00bf1f7b4445ac05eaf3bc59373ff91372f1cb4268",
  "url": "https://osv.dev/vulnerability/CVE-2023-38201",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Keylime: challenge-response protocol bypass during agent registration",
    "summary": "A flaw was found in the Keylime registrar that could allow a bypass of the challenge-response protocol during agent registration. This issue may allow an attacker to impersonate an agent and hide the true status of a monitored machine if the fake agent is added to the verifier list by a legitimate user, resulting in a breach of the integrity of the registrar database.",
    "evidence": "osv:CVE-2023-38201",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2023-38201",
      "aliases": [
        "CVE-2023-38201",
        "GHSA-f4r5-q63f-gcww",
        "PYSEC-2023-160"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/keylime/keylime",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "29657502a4b59f1ffc702043fdb375c0e02bed60"
                },
                {
                  "fixed": "9e5ac9f25cd400b16d5969f531cee28290543f2a"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:keylime:keylime:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "7.5.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "9e5ac9f25cd400b16d5969f531cee28290543f2a"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v7.4.0",
            "v7.3.0",
            "v7.2.5",
            "v6.5.0",
            "v7.0.0",
            "v6.7.0",
            "v6.6.0",
            "v6.5.3",
            "v6.5.2",
            "v5.8.2",
            "v6.5.1",
            "v6.4.3",
            "v6.4.2",
            "v6.4.1",
            "v6.4.0",
            "v6.3.2",
            "v6.3.1",
            "v6.3.0",
            "v6.2.1",
            "v6.2.0",
            "6.1.1",
            "6.1.0",
            "6.0.1",
            "6.0.0",
            "v5.8.1",
            "5.8.1",
            "5.8.0",
            "v4.0.1",
            "5.7.3",
            "5.7.2",
            "5.7.1",
            "5.7.0",
            "5.6.2",
            "5.6.1",
            "5.6.0",
            "5.5.0",
            "5.4.1",
            "5.4.0",
            "5.3.1",
            "5.3.0",
            "5.2.0",
            "5.1.0",
            "5.0.0",
            "v4.0.0",
            "v3.1.1",
            "v3.1.0",
            "v3.0.0",
            "v2.3.4",
            "v2.3.3",
            "v2.3.2",
            "v2.3.1",
            "v2.3",
            "v2.2",
            "v2.1.1",
            "v2.1",
            "v2.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-38201.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:21.258435837Z",
      "provider": "osv",
      "references": [
        "https://access.redhat.com/downloads/content/package-browser/",
        "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZIZZB5NHNCS5D2AEH3ZAO6OQC72IK7WS/",
        "https://access.redhat.com/errata/RHSA-2023:5080",
        "https://access.redhat.com/security/cve/CVE-2023-38201",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/38xxx/CVE-2023-38201.json",
        "https://github.com/keylime/keylime/security/advisories/GHSA-f4r5-q63f-gcww",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-38201",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2222693",
        "https://github.com/keylime/keylime/commit/9e5ac9f25cd400b16d5969f531cee28290543f2a"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-639"
        ],
        "cna_assigner": "redhat",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "0:6.5.2-6.el9_2"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "InverseAffectedRanges"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/38xxx/CVE-2023-38201.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-38201",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 487128,
  "published_at": "2023-08-25T16:15:39.449+00:00"
}