CVE-2023-41993 in Java SE
Summary
by MITRE • 09/21/2023
The issue was addressed with improved checks. This issue is fixed in macOS Sonoma 14. Processing web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited against versions of iOS before iOS 16.7.
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Analysis
by VulDB Data Team • 03/13/2025
The vulnerability identified as CVE-2023-41993 represents a critical security flaw in Apple's web content processing mechanisms that could enable remote code execution on affected systems. This issue specifically impacts macOS Sonoma 14 and earlier versions, as well as iOS versions prior to iOS 16.7, demonstrating the widespread nature of the vulnerability across Apple's ecosystem. The flaw exists within the web content rendering pipeline where improper input validation and sanitization allow malicious actors to craft specially crafted web content that can bypass security boundaries and execute arbitrary code on vulnerable systems. The vulnerability's exploitation potential is particularly concerning given that Apple has confirmed active exploitation attempts against older iOS versions, indicating that threat actors are actively targeting this weakness in the wild. The issue was addressed through enhanced validation checks that strengthen the security boundaries around web content processing, though the remediation specifically targets macOS Sonoma 14 and newer releases.
The technical nature of this vulnerability aligns with common software security patterns where improper input handling leads to code execution flaws, potentially classified under CWE-121 for buffer overflow conditions or CWE-78 for command injection depending on the specific implementation details. The flaw operates at the intersection of web rendering and privilege escalation, allowing attackers to leverage web-based attacks to achieve system compromise. This type of vulnerability typically falls under the ATT&CK framework's technique T1059.001 for command and script injection, where attackers use web content to execute malicious commands on target systems. The exploitation process likely involves crafting malicious HTML or JavaScript content that, when rendered by the affected browser or web engine, triggers the vulnerable code path and executes attacker-controlled payloads with the privileges of the web process. The fact that this vulnerability affects multiple Apple platforms demonstrates how interconnected modern operating systems can make security flaws particularly dangerous when they exist in shared components or frameworks.
The operational impact of CVE-2023-41993 extends beyond simple code execution, as successful exploitation could lead to complete system compromise, data exfiltration, and persistent access for threat actors. Organizations and individual users running affected versions of iOS or macOS face significant risk from this vulnerability, particularly given the confirmed active exploitation against older iOS versions. The attack surface is broad as web content processing occurs across numerous applications and services, making it difficult to fully isolate the risk. Users may be exposed through malicious websites, phishing campaigns, or compromised web applications that serve the malicious content. The vulnerability's potential for remote exploitation without user interaction makes it particularly dangerous, as users could be compromised simply by visiting a malicious website or opening a compromised email with embedded web content. Security teams must prioritize patching efforts across all affected platforms, as the vulnerability represents a significant risk to enterprise environments where Apple devices are commonly used for business operations.
Mitigation strategies for CVE-2023-41993 should prioritize immediate system updates to the latest versions of macOS and iOS where the vulnerability has been addressed. Organizations should implement network-based protections including web application firewalls and content filtering systems to block access to known malicious domains and content. Browser security configurations should be hardened to limit the execution of potentially malicious web content, and users should be educated about the risks of visiting untrusted websites or opening suspicious email attachments. Security monitoring should be enhanced to detect unusual network activity or system behavior that could indicate exploitation attempts. The vulnerability's nature suggests that additional protections such as sandboxing mechanisms and privilege separation should be enforced to limit the potential damage from successful exploitation attempts. Regular vulnerability assessments and penetration testing should be conducted to identify any remaining exposure points, and incident response procedures should be updated to include specific steps for detecting and responding to this type of remote code execution vulnerability. Given the confirmed active exploitation, organizations should consider implementing temporary network restrictions or using alternative browsing methods until full patches are deployed across all affected systems.