Security readout for executives and security teams
Plain-English summary
Aruba disclosed a remote authentication bypass in ClearPass Policy Manager. An affected deployment could allow unauthorized access without valid credentials. Aruba says updates are available. The source bundle does not provide CVSS, technical detail, or evidence of active exploitation.
Executive priority
Treat this as a high-priority infrastructure fix if ClearPass is present. The urgency comes from remote authentication bypass against an identity and network access control system, despite limited public detail.
Technical view
CVE-2021-29151 affects Aruba ClearPass Policy Manager versions prior to 6.10.0, 6.9.6, and 6.8.9. The vulnerability class is remote authentication bypass. Public details in the supplied sources are limited to affected versions and vendor update availability.
Likely exposure
Exposure is likely limited to organizations running Aruba ClearPass Policy Manager below the fixed versions, especially if ClearPass interfaces are reachable from untrusted networks.
Exploitation context
The supplied sources do not show CISA KEV listing or active exploitation. Remote authentication bypass is still significant because ClearPass is an access policy platform.
Researcher notes
The source bundle lacks CVSS, CWE, root cause, attack prerequisites, and indicators. Avoid assuming affected modules or exploitability beyond remote authentication bypass. Use vendor advisory data for precise branch remediation.
Mitigation direction
- Identify all Aruba ClearPass Policy Manager deployments and versions.
- Apply Aruba-released updates for the relevant ClearPass branch.
- Move to 6.10.0, 6.9.6, or 6.8.9 where applicable.
- Restrict ClearPass administrative and service access to trusted networks.
- Check Aruba advisory guidance before choosing compensating controls.
Validation and detection
- Confirm deployed ClearPass versions are not below the fixed release levels.
- Review asset inventory for unmanaged or legacy ClearPass appliances.
- Check vendor advisory ARUBA-PSA-2021-012 for branch-specific instructions.
- Review authentication and administrative logs for unexplained access attempts.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
Credential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-29151 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2021-012.txtCVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.