Full Report
Rapid7 security advisory (AV26-801)
Analysis Summary
# Vulnerability: Velociraptor Authenticated Identity Spoofing
## CVE Details
- **CVE ID:** CVE-2026-18972
- **CVSS Score:** Not explicitly listed in the advisory (Estimated High based on "Identity Spoofing" impact)
- **CWE:** CWE-290 (Authentication Bypass by Spoofing) / CWE-287 (Improper Authentication)
## Affected Systems
- **Products:** Velociraptor (Endpoint visibility and forensics tool)
- **Versions:** All versions prior to v0.77.2
- **Configurations:** Systems where authenticated users have access to the management console or API.
## Vulnerability Description
CVE-2026-18972 is an authenticated identity-spoofing vulnerability within Velociraptor. The flaw allows an already authenticated user to impersonate another identity within the system. This typically occurs due to improper validation of identity tokens or session headers, allowing a low-privileged user to potentially escalate privileges or perform actions as a different user (e.g., an administrator).
## Exploitation
- **Status:** Vulnerability disclosed; exploitation status not specified in current bulletin (Assume PoC may follow disclosure).
- **Complexity:** Medium (Requires valid authentication credentials to start).
- **Attack Vector:** Network (Web-based management console/API).
## Impact
- **Confidentiality:** High (Access to forensic data and telemetry of other users/clients).
- **Integrity:** High (Ability to modify configurations or issue commands as another user).
- **Availability:** Medium (Potential to disrupt monitoring services).
## Remediation
### Patches
- **Upgrade to Velociraptor v0.77.2** or later. This version contains the necessary security fixes to validate identities correctly.
### Workarounds
- **Strict Access Control:** Limit access to the Velociraptor GUI and API to trusted administrative IP ranges.
- **Principle of Least Privilege:** Audit current user roles to ensure only necessary personnel have authenticated access until the patch is applied.
## Detection
- **Indicators of Compromise:** Review audit logs for discrepancies between the authenticated source IP/session and the identity associated with specific actions or VQL (Velociraptor Query Language) executions.
- **Detection Methods:** Monitor for unusual administrative activity originating from non-admin accounts or unexpected privilege escalation events in the Velociraptor server logs.
## References
- **Vendor Advisory:** hxxps[://]docs[.]velociraptor[.]app/announcements/advisories/cve-2026-18972/
- **Cyber Centre Bulletin:** hxxps[://]www[.]cyber[.]gc[.]ca/en/alerts-advisories/rapid7-security-advisory-av26-801