Description
A configuration issue was addressed with additional restrictions. This issue is fixed in macOS Ventura 13.7.5, macOS Sequoia 15.4, macOS Sonoma 14.7.5. An app may be able to trick a user into copying sensitive data to the pasteboard.
EPSS Score:
0%
Comprehensive Technical Analysis of EUVD-2025-8963
1. Vulnerability Assessment and Severity Evaluation
The vulnerability described in EUVD-2025-8963 pertains to a configuration issue in macOS that allows an application to trick users into copying sensitive data to the pasteboard. This issue has been addressed in macOS Ventura 13.7.5, macOS Sequoia 15.4, and macOS Sonoma 14.7.5.
Severity Evaluation:
- Base Score: 9.8 (Critical)
- Base Score Version: CVSS 3.1
- Base Score Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The CVSS score of 9.8 indicates a critical vulnerability. The vector string highlights the following characteristics:
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): Low (L)
- Privileges Required (PR): None (N)
- User Interaction (UI): None (N)
- Scope (S): Unchanged (U)
- Confidentiality (C): High (H)
- Integrity (I): High (H)
- Availability (A): High (H)
This vulnerability poses a significant risk due to its high impact on confidentiality, integrity, and availability, combined with the ease of exploitation.
2. Potential Attack Vectors and Exploitation Methods
Attack Vectors:
- Phishing Attacks: An attacker could use social engineering techniques to trick users into installing a malicious app that exploits this vulnerability.
- Malicious Apps: An attacker could distribute a malicious app through various channels, including third-party app stores or direct downloads.
- Drive-by Downloads: Users could unknowingly download malicious apps from compromised websites.
Exploitation Methods:
- Clipboard Manipulation: The malicious app could manipulate the pasteboard to capture sensitive data such as passwords, credit card numbers, or personal information.
- Data Exfiltration: Once the data is copied to the pasteboard, the malicious app could exfiltrate it to a remote server controlled by the attacker.
3. Affected Systems and Software Versions
The vulnerability affects the following macOS versions:
- macOS Ventura versions prior to 13.7.5
- macOS Sequoia versions prior to 15.4
- macOS Sonoma versions prior to 14.7.5
Users running these versions are at risk and should update their systems to the latest patched versions.
4. Recommended Mitigation Strategies
Immediate Actions:
- Update Systems: Ensure all affected macOS systems are updated to the latest patched versions (macOS Ventura 13.7.5, macOS Sequoia 15.4, macOS Sonoma 14.7.5).
- User Education: Educate users about the risks of installing apps from untrusted sources and the importance of verifying app authenticity.
- Endpoint Protection: Implement robust endpoint protection solutions that can detect and block malicious apps.
Long-Term Strategies:
- Regular Patch Management: Establish a regular patch management process to ensure all systems are kept up-to-date.
- Application Whitelisting: Use application whitelisting to prevent the execution of unauthorized apps.
- Network Monitoring: Implement network monitoring to detect unusual data exfiltration activities.
5. Impact on European Cybersecurity Landscape
The vulnerability poses a significant threat to the European cybersecurity landscape, particularly for organizations and individuals using macOS. The high CVSS score indicates a critical risk, which could lead to data breaches, financial loss, and reputational damage. The widespread use of macOS in both personal and professional settings amplifies the potential impact.
6. Technical Details for Security Professionals
Technical Overview:
- Vulnerability Type: Configuration issue leading to pasteboard manipulation.
- Exploitation: The vulnerability can be exploited by a malicious app without requiring user interaction or elevated privileges.
- Impact: High risk to confidentiality, integrity, and availability of sensitive data.
Detection and Response:
- Indicators of Compromise (IoCs): Monitor for unusual pasteboard activities and data exfiltration patterns.
- Incident Response: In case of detection, isolate affected systems, perform forensic analysis, and apply necessary patches.
- Threat Intelligence: Leverage threat intelligence feeds to stay updated on new exploitation techniques and malicious apps targeting this vulnerability.
References:
By addressing this vulnerability promptly and implementing robust mitigation strategies, organizations can significantly reduce the risk of exploitation and protect their sensitive data.