Cisco CX Cloud Agent: Incorrect Ownership Assignment
CVE-2023-20044 is a high-severity incorrect ownership assignment vulnerability in Cisco CX Cloud Agent from Cisco, with a CVSS 3.1 base score of 7.3 out of 10. It can be exploited with local access to the system by an attacker with a low-privileged account, but only if a user takes part, for example by opening a link or file. Affected Cisco CX Cloud Agent versions: 0.9; 0.0.1; 0.0.2, and others listed below. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.15% 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 Cx Cloud Agent to 2.2.1 or a later version.
- Read the advisory on sec.cloudapps.cisco.com for workarounds and exact fixed builds.
- Because the attack needs a user to take part, warn users about unexpected links and files related to this product until it is patched.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Cisco | Cisco CX Cloud Agent | 0.9; 0.0.1; 0.0.2; 0.9.2; 0.9.3; 1.1; 1.10; 1.11; and 12 more ranges | Not stated |
| Cisco | Cx Cloud Agent | before 2.2.1 | 2.2.1 |
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
- 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
- RequiredA user must take an action such as opening a file or link.
- 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:R/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 6.7 | Medium | CNA (cisco.com) |
| CVSS 3.1 | 7.3 | High | NVD |
Official description
A vulnerability in Cisco CX Cloud Agent of could allow an authenticated, local attacker to elevate their privileges. This vulnerability is due to insecure file permissions. An attacker could exploit this vulnerability by persuading support to update settings which call the insecure script. A successful exploit could allow the attacker to take complete control of the affected device.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Incorrect Ownership Assignment
The product assigns an owner to a resource, but the owner is outside of the intended control sphere.
How developers prevent this class of flaw
- Periodically review the privileges and their owners.
More Incorrect Ownership Assignment vulnerabilities (CWE-708)
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
Advisories
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