Misp: Improper Authentication
CVE-2022-29534 is a high-severity improper authentication vulnerability in Misp from Misp-project, 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. The record lists version 2.4.158 as the first without the flaw, so updating Misp to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 1.6% chance of exploitation within 30 days, higher than 76% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Misp to 2.4.158 or a later version.
- 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 |
|---|---|---|---|
| Misp-project | Misp | before 2.4.158 | 2.4.158 |
Version data comes from NVD's product matching. 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
- NoneNo data is disclosed.
- Integrity
- HighData or code can be modified at will.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 7.5 | High | NVD |
| CVSS 2.0 | 5.0 | Medium | NVD |
Official description
An issue was discovered in MISP before 2.4.158. In UsersController.php, password confirmation can be bypassed via vectors involving an "Accept: application/json" header.
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.
- Record last changed materially (score, affected products, status or references).
References
Patches and release notes
- github.com/MISP/MISP/commit/01120163a6b4d905029d416e7305575df31df8afThird Party Advisory
- github.com/MISP/MISP/compare/v2.4.157...v2.4.158Release Notes, Third Party Advisory
Third-party and government advisories
- zigrin.com/advisories/misp-password-confirmation-can-be-bypassed/Third Party Advisory
Technical write-ups (may include proof of concept)
- zigrin.com/cakephp-application-cybersecurity-research-the-impact-of-a-php-vulnerability-exploring-the-passwor…Exploit, Third Party Advisory
Other vulnerabilities in Misp
- 9.8 Critical severity
- 7.5 High severity
- 9.8 Critical severity
Recent Improper Authentication vulnerabilities
- 9.8 Critical severity
- 8.8 High severity
- 8.8 High severity
- 10.0 Critical severity
- 9.1 Critical severity
- 9.8 Critical severity
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