CODESYS Control Win (SL): Exposure of Resource to Wrong Sphere
CVE-2023-5751 is a high-severity exposure of resource to wrong sphere vulnerability in CODESYS Control Win (SL) from Codesys, 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. The record lists version 3.5.20.10 as the first without the flaw, so updating CODESYS Control Win (SL) to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.17% 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 CODESYS Control Win (SL) to 3.5.20.10 or a later version.
- Update CODESYS Development System V3 to 3.5.20.10 or a later version.
- Update CODESYS Edge Gateway for Windows to 3.5.20.10 or a later version.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| CODESYS | CODESYS Control Win (SL) | before 3.5.20.10 | 3.5.20.10 |
| CODESYS | CODESYS Development System V3 | before 3.5.20.10 | 3.5.20.10 |
| CODESYS | CODESYS Edge Gateway for Windows | before 3.5.20.10 | 3.5.20.10 |
| CODESYS | CODESYS Gateway for Windows | before 3.5.20.10 | 3.5.20.10 |
| CODESYS | CODESYS HMI (SL) | before 3.5.20.10 | 3.5.20.10 |
| Codesys | control_win_sl | before 3.5.20.10 | 3.5.20.10 |
| Codesys | development_system_v3 | before 3.5.20.10 | 3.5.20.10 |
| Codesys | edge_gateway | before 3.5.20.10 | 3.5.20.10 |
| Codesys | gateway | before 3.5.20.10 | 3.5.20.10 |
| Codesys | hmi_sl | before 3.5.20.10 | 3.5.20.10 |
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 CNA (cert.vde.com).
Official description
A local attacker with low privileges can read and modify any users files and cause a DoS in the working directory of the affected products due to exposure of resource to wrong sphere.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Exposure of Resource to Wrong Sphere
The product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource.
More Exposure of Resource to Wrong Sphere vulnerabilities (CWE-668)
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 references
Other vulnerabilities in CODESYS Control Win (SL)
- 7.5 High severity
- 8.1 High severity
- 7.5 High severity
- 8.8 High severity
- 7.5 High severity
- 7.5 High severity
Recent Exposure of Resource to Wrong Sphere vulnerabilities
- 7.1 High severity
- 7.1 High severity
- 7.9 High severity
- 8.8 High severity
- 7.4 High severity
- 8.8 High severity
Spotted an error? Tell us.