Rancher: Exposure of Resource to Wrong Sphere
CVE-2022-21947 is a high-severity exposure of resource to wrong sphere vulnerability in Rancher from SUSE, with a CVSS 3.1 base score of 8.8 out of 10. It can be exploited from the same local network by an unauthenticated attacker, without any action from a user. The record lists version V as the first without the flaw, so updating Rancher to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.61% 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 Rancher to V or a later version.
- Update Rancher Desktop to 1.2.1 or a later version.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| SUSE | Rancher | Desktop up to, but not including, V | V |
| SUSE | Rancher Desktop | before 1.2.1 | 1.2.1 |
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
- AdjacentThe attacker must be on the same local network segment.
- 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
- 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:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 8.3 | High | CNA (suse.de) |
| CVSS 3.1 | 8.8 | High | NVD |
| CVSS 2.0 | 5.8 | Medium | NVD |
Official description
A Exposure of Resource to Wrong Sphere vulnerability in Rancher Desktop of SUSE allows attackers in the local network to connect to the Dashboard API (steve) to carry out arbitrary actions. This issue affects: SUSE Rancher Desktop versions prior to V.
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
Third-party and government advisories
- bugzilla.suse.com/show_bug.cgi?id=1197491Issue Tracking, Third Party Advisory
Other vulnerabilities in Rancher
- 9.1 Critical severity
- 7.2 High severity
- 9.1 Critical severity
- 7.6 High severity
- 7.9 High severity
- 8.5 High severity
Recent Exposure of Resource to Wrong Sphere vulnerabilities
- 7.8 High severity
- 7.5 High severity
- 9.8 Critical severity
- 7.3 High severity
- 8.1 High severity
- 9.8 Critical severity
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