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CVE-2025-26435: Vulnerability in ContentProtectionTogglePreferenceController.java allowing secondary users to disable primary user’s app scanning

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Overview

A vulnerability has been identified in the updateState function of ContentProtectionTogglePreferenceController.java that can potentially enable a secondary user to disable the primary user’s deceptive app scanning settings. This vulnerability is a serious concern, as it could lead to local escalation of privilege, compromising system security and potentially leading to data leakage. It is particularly worrisome as it requires no additional execution privileges or user interaction for exploitation.

Vulnerability Summary

CVE ID: CVE-2025-26435
Severity: High (CVSS: 7.8)
Attack Vector: Local
Privileges Required: None
User Interaction: None
Impact: Local escalation of privilege potentially leading to system compromise or data leakage

Affected Products

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Product | Affected Versions

Java | All versions prior to patch

How the Exploit Works

This vulnerability arises due to a logic error in the code of ContentProtectionTogglePreferenceController.java. Specifically, the updateState function incorrectly allows a secondary user to modify the primary user’s deceptive app scanning setting. An attacker exploiting this vulnerability can disable the primary user’s application scanning, potentially installing malicious applications without detection, thereby compromising the system’s security.

Conceptual Example Code

The following is a conceptual example of how the vulnerability might be exploited. This pseudocode illustrates how a secondary user could potentially disable the primary user’s app scanning setting:

// Pseudo-code for exploiting CVE-2025-26435
SecondaryUser su = getSecondaryUser();
ContentProtectionTogglePreferenceController cptpc = getContentProtectionToggleController();
if (su.hasAccess(cptpc)) {
cptpc.updateState(false); // Disables deceptive app scanning for primary user
}

Mitigation Guidance

System administrators are strongly advised to apply the vendor patch as soon as it is available to mitigate this vulnerability. In the interim, the use of a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation. These systems should be configured to monitor and block suspicious activities and changes to user privileges.

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Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.

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