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How the CVE Works:
CVE-2025-30440 is a memory protection bypass vulnerability in macOS (Ventura, Sequoia, and Sonoma) that allows an application to circumvent Address Space Layout Randomization (ASLR). ASLR is a security feature that randomizes memory addresses to prevent exploits like ROP chains or shellcode execution. The flaw arises due to insufficient validation in memory handling, enabling malicious apps to predict or manipulate memory layouts. Attackers could exploit this to execute arbitrary code with elevated privileges, leading to system compromise. Apple patched it in macOS Ventura 13.7.6, macOS Sequoia 15.5, and macOS Sonoma 14.7.6.
DailyCVE Form:
Platform: macOS
Version: Ventura <13.7.6, Sequoia <15.5, Sonoma <14.7.6
Vulnerability: ASLR bypass
Severity: Critical
Date: 05/27/2025
Prediction: Patch released (13.7.6/15.5/14.7.6)
What Undercode Say:
Analytics:
- Exploitability Index: High (PoC likely)
- Attack Vector: Local (app execution)
- Impact: Privilege escalation
Commands:
1. Check macOS version:
sw_vers -productVersion
2. Verify ASLR status:
sysctl kern.aslr.enabled
Exploit (Conceptual):
include <mach-o/dyld.h>
void bypass_aslr() {
uintptr_t base = _dyld_get_image_vmaddr_slide(0);
// Manipulate memory offsets
}
Protection:
1. Update immediately:
softwareupdate --install --all
2. Enable SIP (System Integrity Protection):
csrutil enable
3. Restrict app execution:
spctl --master-enable
Mitigation Code:
// Sandboxing example (enments) <key>com.apple.security.app-sandbox</key> <true/>
Log Monitoring:
log stream --predicate 'eventMessage contains "ASLR"'
References:
- Apple Advisory: HT202525-30440
- NVD: CVE-2025-30440
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
