Aruba ClearPass Policy Manager: Improper Privilege Management
CVE-2023-43506 is a high-severity improper privilege management vulnerability in Aruba ClearPass Policy Manager from Hewlett Packard Enterprise, with a CVSS 3.1 base score of 7.8 out of 10. It can be exploited with local access to the system by an attacker with a low-privileged account, without any action from a user. Affected Aruba ClearPass Policy Manager versions: ClearPass Policy Manager 6.11.x: 6.11.4 and below through <=6.11.4. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.23% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update aruba_clear_pass_policy_manager to 6.10.8 or 6.9.13, whichever matches your release line, or a later version.
- Update Clearpass Policy Manager to 6.9.13 or 6.10.8, whichever matches your release line, or a later version.
- Read the advisory on arubanetworks.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Hewlett Packard Enterprise | Aruba ClearPass Policy Manager | ClearPass Policy Manager 6.11.x: 6.11.4 and below through <=6.11.4 | Not stated |
| Hewlett Packard Enterprise | aruba_clear_pass_policy_manager | 6.11x through 6.11.4; 6.10x up to, but not including, 6.10.8; 6.9x up to, but not including, 6.9.13 | 6.10.8, 6.9.13 |
| Aruba Networks | Clearpass Policy Manager | before 6.9.13; 6.10.0 up to, but not including, 6.10.8; 6.11.0 through 6.11.4; 6.9.13; 6.10.8 | 6.9.13, 6.10.8 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- LocalThe attacker needs local access or must trick a user into running something.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 7.8 | High | CNA (hpe.com) |
| CVSS 3.1 | 7.8 | High | NVD |
Official description
A vulnerability in the ClearPass OnGuard Linux agent could allow malicious users on a Linux instance to elevate their user privileges to those of a higher role. A successful exploit allows malicious users to execute arbitrary code with root level privileges on the Linux instance.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Privilege Management
The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.
How developers prevent this class of flaw
- Very carefully manage the setting, management, and handling of privileges. Explicitly manage trust zones in the software.
- Follow the principle of least privilege when assigning access rights to entities in a software system.
- Consider following the principle of separation of privilege. Require multiple conditions to be met before permitting access to a system resource.
More Improper Privilege Management vulnerabilities (CWE-269)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in Aruba ClearPass Policy Manager
- 8.8 High severity
- 8.8 High severity
- 8.8 High severity
- 8.8 High severity
- 8.8 High severity
- 8.8 High severity
Recent Improper Privilege Management vulnerabilities
- 7.8 High severity
- 8.2 High severity
- 8.2 High severity
- 8.2 High severity
- 7.8 High severity
- 7.8 High severity
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