Cyber Resilience

CVE-2024-28200

Critical

Published: 01 July 2024

Published
01 July 2024
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS Score 0.4995 97.9th percentile
Risk Priority 48 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-28200 is a critical-severity Authentication Bypass Using an Alternate Path or Channel (CWE-288) vulnerability in N-Able N-Central. Its CVSS base score is 9.1 (Critical).

Operationally, ranked in the top 2.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

Deeper analysis

The vulnerability CVE-2024-28200 is an authentication bypass in the user interface of the N-central server, present in all deployments prior to version 2024.2. It is tracked under CWEs 288 and 287 and carries a CVSS 3.1 score of 9.1 reflecting network-accessible attack conditions with no required credentials or user interaction.

An unauthenticated remote attacker can exploit the flaw to bypass authentication controls on the N-central user interface, resulting in high impact to confidentiality and integrity while availability remains unaffected.

N-able's security advisory and the 2024.2 release notes direct customers to upgrade to N-central 2024.2 for remediation; the issue was identified through internal source-code review.

No exploitation in the wild has been observed by the vendor. The associated EPSS score reached a peak of 0.5606 before receding to its current value of 0.4995.

EU & UK References

Vulnerability details

The N-central server is vulnerable to an authentication bypass of the user interface. This vulnerability is present in all deployments of N-central prior to 2024.2. This vulnerability was discovered through internal N-central source code review and N-able has not observed…

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any exploitation in the wild.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

n-able
n-central
≤ 2024.2

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-287 CWE-288

Detects unauthorized successful logons resulting from improper authentication implementations.

addresses: CWE-287 CWE-288

Requires adaptive authentication under specific conditions, directly strengthening authentication mechanisms against improper or insufficient authentication.

addresses: CWE-287 CWE-288

Identity providers centralize and enforce authentication mechanisms, reducing improper authentication.

addresses: CWE-287 CWE-288

Mandates unique identification and authentication of non-organizational users, directly mitigating improper authentication.

addresses: CWE-288

Authorizing remote access reduces the ability to bypass authentication via unauthorized alternate remote channels.

addresses: CWE-287

Documented procedures ensure personnel are trained on authentication mechanisms, tangibly lowering the risk of improper authentication being exploited.

addresses: CWE-287

Security awareness training instructs users on secure authentication practices and avoiding credential compromise.

addresses: CWE-287

Training on authentication mechanisms and best practices decreases the occurrence of improper authentication.

References