WBR-6012: Reliance on IP Address for Authentication
CVE-2024-23309 is a high-severity reliance on IP address for authentication vulnerability in WBR-6012 from LevelOne, with a CVSS 3.1 base score of 8.1 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected WBR-6012 versions: R0.40e6. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.92% chance of exploitation within 30 days, higher than 61% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of WBR-6012 you run against the affected versions below, and install the vendor's latest release.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| LevelOne | WBR-6012 | R0.40e6 | Not stated |
| Level1 | Wbr-6012 Firmware | r0.40e6 | 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
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- HighSuccess depends on conditions outside the attacker's control.
- 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:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 9.0 | Critical | CNA (cisco.com) |
| CVSS 3.1 | 8.1 | High | NVD |
Official description
The LevelOne WBR-6012 router with firmware R0.40e6 has an authentication bypass vulnerability in its web application due to reliance on client IP addresses for authentication. Attackers could spoof an IP address to gain unauthorized access without needing a session token.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Reliance on IP Address for Authentication
The product uses an IP address for authentication.
How developers prevent this class of flaw
- Use other means of identity verification that cannot be simply spoofed. Possibilities include a username/password or certificate. While IP address verification can be a useful part of an authentication scheme, but it should not be the single factor required for authentication.
More Reliance on IP Address for Authentication vulnerabilities (CWE-291)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: poc, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Technical write-ups (may include proof of concept)
- talosintelligence.com/vulnerability_reports/TALOS-2024-1996Exploit, Third Party Advisory
Other references
Other vulnerabilities in WBR-6012
- 7.5 High severity
- 8.8 High severity
- 7.5 High severity
- 7.5 High severity
- 9.8 Critical severity
- 8.1 High severity
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