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Powerpanel CVE-2024-32735

CRITICAL
Missing Authentication for Critical Function (CWE-306)
2024-05-14 vulnreport@tenable.com
Authentication Bypass Powerpanel Cyberpower
9.8
CVSS 3.1 · Vendor: tenable
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Vulnerability Assessment

Weakness
CWE
CWE-306
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication Authentication required for critical functions
MITRE ATT&CK

1 technique across 1 tactic: Initial Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

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Impact

CVSS score of 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required.
Exploit ScenarioDerived

A remote attacker could access critical functionality without authentication by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.
Act Now Prioritize within 24-48h. Why: CRITICAL severity + public POC available.
No patch listed yet 6.8% exploitation probability (EPSS)

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AnalysisAI

An issue regarding missing authentication for certain utilities exists in CyberPower PowerPanel Enterprise prior to v2.8.3. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Require authentication for all sensitive operations, implement defense in depth.

Affects your stack

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Technical ContextAI · show details

This vulnerability is classified as Missing Authentication for Critical Function (CWE-306), which allows attackers to access critical functionality without authentication. 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. Affected products include: Cyberpower Powerpanel.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

Vendor (tenable) PRIMARY 9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from Vendor (tenable) · only source for this CVE.

CVSS VectorVendor: tenable

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionCVE.org

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.

Threat Intelligence Overview

EPSS Score
6.8%
Top 7% exploitable
Exploit
POC
Public exploit code exists
Data Quality
2 sources
Confidence: Low
NVD CVE.org EPSS POC (1)

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity CRITICAL
CISA KEV No
Public POC Yes
EPSS 6.8%
Patch available No
Active threat No
Deciding rule
CRITICAL severity + public POC available
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
Medium

Priority Score

76
Low Medium High Critical
KEV: 0
EPSS: +7
CVSS: +49
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication Bypass CRITICAL

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Affected Products (CPE)CVE.org

cpe:2.3:a:cyberpower:powerpanel:*:*:*:*:enterprise:windows:*:*

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Same weakness CWE-306 – Missing Authentication for Critical Function

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References

Advisories & patches
REF https://www.cyberpower.com/global/en/File/GetFileSampleByType?fileId=SU-18070002-07&fileSubType=FileReleaseNote REF https://www.tenable.com/security/research/tra-2024-14

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