Vulnerability-Lookup

GHSA-8V97-27J3-GGR7

Vulnerability from github – Published: 2025-10-28 18:30 – Updated: 2025-10-28 18:30

Details

Wazuh's File Integrity Monitoring (FIM), when configured with automatic threat removal, contains a time-of-check/time-of-use (TOCTOU) race condition that can allow a local, low-privileged attacker to cause the Wazuh service (running as NT AUTHORITY\SYSTEM) to delete attacker-controlled files or paths. The root cause is insufficient synchronization and lack of robust final-path validation in the threat-removal workflow: the agent records an active-response action and proceeds to perform deletion without guaranteeing the deletion target is the originally intended file. This can result in SYSTEM-level arbitrary file or folder deletion and consequent local privilege escalation. Wazuh made an attempted fix via pull request 8697 on 2025-07-10, but that change was incomplete.

Severity

7.1 (High)


                  
                    CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H

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{
  "affected": [],
  "aliases": [
    "CVE-2025-34294"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-367"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-28T16:15:37Z",
    "severity": "HIGH"
  },
  "details": "Wazuh\u0027s File Integrity Monitoring (FIM), when configured with automatic threat removal, contains a time-of-check/time-of-use (TOCTOU) race condition that can allow a local, low-privileged attacker to cause the Wazuh service (running as NT AUTHORITY\\SYSTEM) to delete attacker-controlled files or paths. The root cause is insufficient synchronization and lack of robust final-path validation in the threat-removal workflow: the agent records an active-response action and proceeds to perform deletion without guaranteeing the deletion target is the originally intended file. This can result in SYSTEM-level arbitrary file or folder deletion and consequent local privilege escalation. Wazuh made an attempted fix via pull request 8697 on 2025-07-10, but that change was incomplete.",
  "id": "GHSA-8v97-27j3-ggr7",
  "modified": "2025-10-28T18:30:29Z",
  "published": "2025-10-28T18:30:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-34294"
    },
    {
      "type": "WEB",
      "url": "https://github.com/wazuh/wazuh-documentation/pull/8697"
    },
    {
      "type": "WEB",
      "url": "https://documentation.wazuh.com/current/user-manual/capabilities/active-response/index.html"
    },
    {
      "type": "WEB",
      "url": "https://wazuh.com/blog/detecting-and-responding-to-malicious-files-using-cdb-lists-and-active-response"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/wazuh-file-integrity-monitoring-and-active-response-arbitrary-file-deletion-as-system"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2025-34294 (GCVE-0-2025-34294)

Vulnerability from cvelistv5 – Published: 2025-10-28 15:48 – Updated: 2025-12-19 14:24

This CVE ID has been rejected or withdrawn by its CVE Numbering Authority as the behavior originates from a documentation-published Active Response example script. Please refer to this advisory ( https://github.com/wazuh/wazuh-documentation/security/advisories/GHSA-46r5-xp98-fpgg ) for further information.

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        "dateUpdated": "2025-12-19T14:24:12.863Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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            }
          ],
          "value": "This CVE ID has been rejected or withdrawn by its CVE Numbering Authority as the behavior originates from a documentation-published Active Response example script. Please refer to this advisory ( https://github.com/wazuh/wazuh-documentation/security/advisories/GHSA-46r5-xp98-fpgg )\u00a0for further information."
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    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2025-34294",
    "datePublished": "2025-10-28T15:48:15.981Z",
    "dateRejected": "2025-12-19T14:23:42.185Z",
    "dateReserved": "2025-04-15T19:15:22.581Z",
    "dateUpdated": "2025-12-19T14:24:12.863Z",
    "state": "REJECTED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.