A vulnerability has been identified in keylime where an attacker can exploit this flaw by registering a new agent using a different Trusted Platform Module (TPM) device but claiming an existing agent's unique identifier (UUID). This action overwrites the legitimate agent's identity, enabling the attacker to impersonate the compromised agent and potentially bypass security controls.
Security readout for executives and security teams
Plain-English summary
Keylime can let a highly privileged attacker register a different TPM-backed agent while claiming an existing agent UUID. That can replace the legitimate agent identity, allowing impersonation and possible bypass of attestation-based trust decisions.
Executive priority
Treat as high priority where Keylime supports platform trust, compliance, or workload admission decisions. The main risk is not data theft alone; it is false trust in an impersonating system.
Technical view
The registrar accepts duplicate UUID registration in a way that can overwrite an existing agent identity. Red Hat rates this high, CVSS 8.2, with network access, low complexity, high privileges, no user interaction, and changed scope.
Likely exposure
Exposure is most likely in environments running affected Red Hat keylime packages on RHEL 9, RHEL 10, and listed EUS/E4S streams where Keylime registrar enrollment is reachable to privileged actors.
Exploitation context
The bundle does not show KEV listing or confirmed active exploitation. Exploitation requires high privileges and the ability to register an agent, but impact is significant because it targets identity and trust enforcement.
Researcher notes
Evidence identifies duplicate UUID handling in Keylime registrar as the core flaw. The bundle does not provide exploit proof, patch diff details, or a universal upstream version range, so validation should stay tied to vendor advisories.
Mitigation direction
Review the relevant Red Hat errata for your RHEL stream.
Apply vendor-provided keylime updates where available.
Limit registrar access to authorized enrollment paths only.
Monitor for duplicate UUID registrations or unexpected agent replacement.
Check Keylime project issue and Red Hat CVE page for updated guidance.
Validation and detection
Inventory systems running keylime on affected Red Hat products.
Confirm installed keylime package versions against Red Hat advisories.
Review registrar logs for duplicate UUID enrollment events.
Verify agent UUIDs map to expected TPM identities.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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cwe · low confidence lookup
CWE-694: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
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CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
CWE-694 · source CWE mapping
Use of Multiple Resources with Duplicate Identifier
Use of Multiple Resources with Duplicate Identifier represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.