CL4NX-J Plus: Improper Authentication
CVE-2023-5328 is a high-severity improper authentication vulnerability in CL4NX-J Plus from SATO, 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. Affected CL4NX-J Plus versions: 1.13.2-u455_r2. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.51% 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 CL4NX-J Plus you run against the affected versions below, and install the vendor's latest release.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| SATO | CL4NX-J Plus | 1.13.2-u455_r2 | Not stated |
| Sato | Cl4nx-j Plus Firmware | 1.13.2-u455_r2 | 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
- 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 | 6.3 | Medium | CNA (vuldb.com) |
| CVSS 3.1 | 8.8 | High | NVD |
| CVSS 2.0 | 5.8 | Medium | CNA (vuldb.com) |
Official description
A vulnerability classified as critical has been found in SATO CL4NX-J Plus 1.13.2-u455_r2. This affects an unknown part of the component Cookie Handler. The manipulation with the input auth=user,level1,settings; web=true leads to improper authentication. Access to the local network is required for this attack. The exploit has been disclosed to the public and may be used. The identifier VDB-241029 was assigned to this vulnerability.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Authentication
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
How developers prevent this class of flaw
- Use an authentication framework or library such as the OWASP ESAPI Authentication feature.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Third-party and government advisories
- github.com/CV3TR4CK/CV3Cyb3R/blob/main/2023/SATO%20CL4NX-J%20Plus%20cookie/README.mdThird Party Advisory
- vuldb.com/?ctiid.241029Third Party Advisory
- vuldb.com/?id.241029Third Party Advisory
Other vulnerabilities in CL4NX-J Plus
- 8.8 High severity
Recent Improper Authentication vulnerabilities
- 7.5 High severity
- 9.8 Critical severity
- 9.1 Critical severity
- 7.8 High severity
- 8.2 High severity
- 9.8 Critical severity
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