CVE-2024-32735
Published: 14 May 2024
Summary
CVE-2024-32735 is a critical-severity Missing Authentication for Critical Function (CWE-306) vulnerability in Cyberpower Powerpanel. Its CVSS base score is 9.8 (Critical).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 1.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2024-32735 is a missing authentication vulnerability affecting CyberPower PowerPanel Enterprise versions prior to 2.8.3. The flaw, tracked as CWE-306, leaves certain utilities without required authentication checks, allowing direct access to the PDNU REST APIs and carrying a CVSS 3.1 score of 9.8.
An unauthenticated remote attacker can exploit the issue over the network to reach the exposed APIs, potentially resulting in full compromise of the application with impacts to confidentiality, integrity, and availability.
Vendor release notes and Tenable research point to upgrading to version 2.8.3 or later as the primary mitigation to restore authentication requirements on the affected interfaces.
The CVE maintains a high EPSS score, currently 0.7036 after peaking at 0.7550, indicating sustained exploitation interest following disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-30522
Vulnerability details
An issue regarding missing authentication for certain utilities exists in CyberPower PowerPanel Enterprise prior to v2.8.3. An unauthenticated remote attacker can access the PDNU REST APIs, which may result in compromise of the application.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
The vulnerability (CVE-2024-32735) involves missing authentication for critical PDNU REST APIs in CyberPower PowerPanel Enterprise, enabling an unauthenticated remote attacker to access and compromise the application, directly facilitating T1190 (Exploit Public-Facing Application).
Affected Assets
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.
Requires established identification and authentication to unlock, mitigating missing authentication for continued system access.
Requiring identification and rationale for actions allowed without authentication ensures critical functions are not left unprotected by forcing review of authentication requirements.
Authorizing mobile device connections to organizational systems ensures authentication is performed for this critical access function.
Guarantees critical functions are protected by mandatory invocation of the access control mechanism.
Auditing sessions makes it possible to detect access to critical functions without required authentication.
The assessment process confirms authentication is present and effective for critical functions, preventing exploitation from missing authentication.
Certification assesses that critical functions have required authentication controls in place.
Disabling non-essential functions and services eliminates the need to secure them, reducing exposure from missing authentication on unnecessary components.