Sceawere
Vulnerability Detail
CVE-2026-73789UPDATED Verified Sceawere Triage Sources: NVD / CISA KEV
CPPM Guest Management Authentication Bypass
Vulnerability Metadata
- Severity
- Medium
- Score / CVSS
- 5.3
- Creation Date
- 1d ago
- Vendor
- Hewlett Packard Enterprise (HPE)
- Product
- ClearPass Policy Manager (CPPM)
- Attack Type
- N/A
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- Attack Complexity
- LOW
Narrative and Response
Description
A vulnerability in the web-based management interface of CPPM guest account management services could allow an unauthenticated remote attacker to manipulate account settings. Successful exploitation could allow an attacker to extend network access beyond policy limits, leading to unauthorized prolonged use of network resources.
Executive Summary
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Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
Technical Details
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Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
Mitigations
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Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
References
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Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
Additional Metadata
{
"score": "5.3",
"pubDate": "2026-09-09T20:20:33.830Z",
"pubdate": "2026-09-09T20:20:33.830Z",
"executiveSummary": "This vulnerability exists within the web-based management interface of CPPM guest account management services, specifically affecting the authorization logic for account state modification.\nThe vulnerability is classified as an authentication bypass or improper access control issue, allowing an unauthenticated remote attacker to interact with sensitive administrative functionality without valid credentials.\nThe primary impact is the unauthorized manipulation of guest account parameters, which enables attackers to circumvent network access policies.\nBy modifying account expiry settings or session limitations, an attacker can extend network access duration beyond defined organizational security policies.\nThis presents a significant risk to network integrity and resource availability, as it facilitates prolonged, unauthorized access to network segments normally protected by time-limited guest access constraints.\nExploitation requires network access to the CPPM web interface; however, no prior authentication or administrative privileges are necessary to perform the manipulation, lowering the barrier for potential adversaries.",
"technicalDetails": "The vulnerability stems from insufficient access control enforcement within the CPPM guest account management web interface. Specifically, the application fails to adequately validate the session state or authorization tokens for requests directed toward account management endpoints.\nThe root cause is a failure in the application's request processing logic, which assumes that incoming requests to modify guest account attributes are inherently authorized if they reach the service endpoint. This oversight allows an unauthenticated remote attacker to craft specifically formed HTTP requests that are processed by the backend without verifying the requestor's identity.\nThe attack flow begins with the attacker identifying the target CPPM web-based interface. The attacker then targets the specific URI endpoints responsible for updating account metadata, such as account expiration timestamps, session duration limits, or account status flags.\nBecause the server-side logic lacks requisite authentication checks at the controller or middleware layer for these specific functions, the server accepts the malicious parameters provided in the request payload.\nUpon successful transmission, the backend service processes these parameters, updating the guest account configuration in the underlying database. The payload behavior is focused on altering state variables that govern policy enforcement. By manipulating these variables, the attacker can effectively grant themselves or others an extension to the guest session, effectively bypassing the intended duration constraints imposed by the policy engine.\nThe post-exploitation impact includes the circumvention of network access controls. Because the CPPM system acts as a policy enforcement point for guest networks, the ability to arbitrarily modify account lifespan results in a direct violation of network security policy. This allows for persistent network presence, enabling potential reconnaissance, lateral movement, or continuous data exfiltration from restricted network zones that are intended to be ephemeral.\nThe vulnerability is scoped to the management interface of the CPPM guest services. As it involves a flaw in the application's request handling logic, it represents a failure to implement robust access control mechanisms across all exposed management functions."
}