CMS: Improper Restriction of Excessive Authentication Attempts
CVE-2022-4006 is a high-severity improper restriction of excessive authentication attempts vulnerability in CMS from Wbce, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. There is no confirmed exploitation so far. EPSS estimates a 1.05% chance of exploitation within 30 days, higher than 65% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of CMS 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 |
|---|---|---|---|
| WBCE | CMS | Not specified in the record | Not stated |
| Wbce | Wbce CMS | Not specified in the record | 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
- 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
- NoneNothing can be modified.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 3.7 | Low | CNA (vuldb.com) |
| CVSS 3.1 | 7.5 | High | NVD |
Official description
A vulnerability, which was classified as problematic, has been found in WBCE CMS. Affected by this issue is the function increase_attempts of the file wbce/framework/class.login.php of the component Header Handler. The manipulation of the argument X-Forwarded-For leads to improper restriction of excessive authentication attempts. The attack may be launched remotely. The name of the patch is d394ba39a7bfeb31eda797b6195fd90ef74b2e75. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-213716.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Restriction of Excessive Authentication Attempts
The product does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame.
How developers prevent this class of flaw
- Common protection mechanisms include: Disconnecting the user after a small number of failed attempts Implementing a timeout Locking out a targeted account Requiring a computational task on the user's part.
- Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. Consider using libraries with authentication capabilities such as OpenSSL or the ESAPI Authenticator.
More Improper Restriction of Excessive Authentication Attempts vulnerabilities (CWE-307)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: poc, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Patches and release notes
- github.com/wbce/wbce_cms/commit/d394ba39a7bfeb31eda797b6195fd90ef74b2e75Third Party Advisory
Third-party and government advisories
- vuldb.com/?id.213716Third Party Advisory
Technical write-ups (may include proof of concept)
- github.com/WBCE/WBCE_CMS/issues/524Exploit, Issue Tracking, Third Party Advisory
Recent Improper Restriction of Excessive Authentication Attempts vulnerabilities
- 9.8 Critical severity
- 9.8 Critical severity
- 7.5 High severity
- 9.8 Critical severity
- 9.8 Critical severity
- 7.5 High severity
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