Host Agent Service: Exposure of Resource to Wrong Sphere
CVE-2023-24523 is a high-severity exposure of resource to wrong sphere vulnerability in Host Agent Service from SAP, with a CVSS 3.1 base score of 8.8 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 Host Agent Service versions: 7.21; 7.22. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.18% 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
- Check which version of Host Agent Service you run against the affected versions below, and install the vendor's latest release.
- Read the advisory on launchpad.support.sap.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| SAP | Host Agent Service | 7.21; 7.22 | Not stated |
| SAP | Host Agent | 7.21; 7.22 | 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
- 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
- ChangedThe attack can reach beyond the vulnerable component into other systems.
- 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:C/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 8.8 | High | CNA (sap.com) |
| CVSS 3.1 | 8.8 | High | NVD |
Official description
An attacker authenticated as a non-admin user with local access to a server port assigned to the SAP Host Agent (Start Service) - versions 7.21, 7.22, can submit a crafted ConfigureOutsideDiscovery request with an operating system command which will be executed with administrator privileges. The OS command can read or modify any user or system data and can make the system unavailable.
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.
- Record last changed materially (score, affected products, status or references).
References
Advisories
Recent Exposure of Resource to Wrong Sphere vulnerabilities
- 7.8 High severity
- 8.1 High severity
- 7.8 High severity
- 7.5 High severity
- 7.8 High severity
- 9.1 Critical severity
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