Automation License Manager V5: Externally Controlled Reference to a Resource in Another Sphere
CVE-2022-43513 is a high-severity externally controlled reference to a resource in another sphere vulnerability in Automation License Manager V5 from Siemens, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected Automation License Manager V5 versions: all versions. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 1.03% chance of exploitation within 30 days, higher than 64% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update TeleControl Server Basic V3 to V3.1.2 or a later version.
- Read the advisory on cert-portal.siemens.com for workarounds and exact fixed builds.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Siemens | Automation License Manager V5 | all versions | Not stated |
| Siemens | Automation License Manager V6 | All versions < V6.0 SP9 Upd4 | Not stated |
| Siemens | TeleControl Server Basic V3 | before V3.1.2 | V3.1.2 |
| Siemens | Automation License Manager | 5.0.0; 5.1; 5.2; 5.3; 5.3.4.4; 6.0; 6.0.1; 6.0.8; and 1 more ranges | Not stated |
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
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- NoneNo data is disclosed.
- Integrity
- HighData or code can be modified at will.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 8.2 | High | CNA (siemens.com) |
| CVSS 3.1 | 7.5 | High | NVD |
Official description
A vulnerability has been identified in Automation License Manager V5 (All versions), Automation License Manager V6 (All versions < V6.0 SP9 Upd4), TeleControl Server Basic V3 (All versions < V3.1.2). The affected components allow to rename license files with user chosen input without authentication. This could allow an unauthenticated remote attacker to rename and move files as SYSTEM user.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Externally Controlled Reference to a Resource in Another Sphere
The product uses an externally controlled name or reference that resolves to a resource that is outside of the intended control sphere.
More Externally Controlled Reference to a Resource in Another Sphere vulnerabilities (CWE-610)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Other references
Other vulnerabilities in Automation License Manager V5
- 8.6 High severity
- 9.8 Critical severity
Recent Externally Controlled Reference to a Resource in Another Sphere vulnerabilities
- 7.8 High severity
- 7.8 High severity
- 7.5 High severity
- 7.5 High severity
- 7.5 High severity
- 7.5 High severity
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