How the CVE Works:
CVE-2025-24282 is a library injection vulnerability in macOS that allows malicious apps to bypass file system restrictions and modify protected directories. The flaw stems from improper validation of dynamically loaded libraries, enabling attackers to inject malicious code into trusted processes. By exploiting weak library path checks, an app can replace legitimate system libraries with malicious ones, leading to privilege escalation or unauthorized file system access. The vulnerability affects macOS versions prior to Sequoia 15.4, where Apple introduced stricter library loading constraints.
DailyCVE Form:
Platform: macOS
Version: <15.4
Vulnerability: Library Injection
Severity: Critical
Date: 04/04/2025
What Undercode Say:
Exploitation:
1. Malicious Library Crafting:
gcc -shared -o /tmp/evil.dylib evil_code.c
2. Path Hijacking:
export DYLD_INSERT_LIBRARIES=/tmp/evil.dylib
3. Process Targeting:
/Applications/VulnerableApp.app/Contents/MacOS/VulnerableApp
Protection:
1. Update macOS:
softwareupdate --install --all
2. Library Validation:
codesign -dv /Applications/App.app
3. Sandboxing:
sandbox-exec -n no-network /path/to/app
Detection:
1. Log Monitoring:
log show --predicate 'eventMessage contains "dyld"'
2. File Integrity Checks:
find /usr/lib -type f -exec md5 {} \;
Mitigation Script:
!/bin/bash Block unauthorized DYLD vars sysctl -w security.mac.proc_enforce=1
References:
References:
Reported By: https://nvd.nist.gov/vuln/detail/CVE-2025-24282
Extra Source Hub:
Undercode
