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How the mentioned CVE works:
CVE-2025-43523 is a permissions vulnerability within macOS Sequoia’s security framework. The flaw involves insufficient enforcement of application restrictions, allowing a malicious or compromised application to bypass intended access controls. By exploiting this logic issue, an app could perform unauthorized read operations, leading to the disclosure of sensitive user data stored on the system. The attack requires local access and some user interaction, such as convincing a user to launch the malicious application. Successful exploitation results in a high impact to confidentiality, as the app gains access to data it should not be authorized to read.
dailycve form:
Platform: macOS
Version: Sequoia (<15.7.3)
Vulnerability: Permissions Bypass
Severity: Medium
date: 2025-12-12
Prediction: 2025-12-12
What Undercode Say:
Note: No specific exploit code for CVE-2025-43523 was found in the provided search results. The following are general monitoring commands relevant to detecting permission-related anomalies.
Check system log for recent permission/enment errors log show --predicate 'eventMessage contains "enment" or eventMessage contains "sandbox"' --last 1h List processes with suspicious enments (example: com.apple.private.) ps aux | grep -E "(Enments|Profile)"
How Exploit:
An attacker crafts a malicious application designed to request specific system resources or file paths. When executed by the user, the app leverages the flawed permission logic to bypass sandbox or code-signing restrictions that are meant to block access. This allows the app to read sensitive data from user directories or other protected locations, which is then exfiltrated.
Protection from this CVE:
Immediately update to macOS Sequoia 15.7.3. Apply all subsequent security patches. Restrict installation of applications to trusted sources from the App Store and identified developers. Use Mobile Device Management (MDM) to enforce updates and centralize permission policies. Conduct regular audits of installed applications and review granted permissions.
Impact:
The primary impact is unauthorized disclosure of sensitive user data (CWE-200). This can lead to a breach of personal identifiable information (PII), intellectual property theft, and non-compliance with data protection regulations like GDPR. The vulnerability affects confidentiality with a high impact score, while integrity and availability are not directly affected.
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Sources:
Reported By: nvd.nist.gov
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