Detect Apple Multiple Products Buffer Overflow Exploitation (CVE-2025-31277) in Sumo Logic CSE
Detects potential exploitation of CVE-2025-31277, a buffer overflow vulnerability (CWE-119) affecting multiple Apple products. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild. Successful exploitation may allow attackers to execute arbitrary code, escalate privileges, or cause denial of service on affected Apple devices and systems.
MITRE ATT&CK
Sumo Detection Query
_sourceCategory=endpoint/macos OR _sourceCategory=endpoint/crowdstrike OR _sourceCategory=endpoint/jamf
| where os_type in ("macos", "ios", "ipados") or vendor = "Apple"
| where (event_type in ("ProcessCrash", "ExceptionEvent", "SignalEvent") and process_name in ("mdmclient", "mobileassetd", "softwareupdated", "nsurlsessiond", "trustd", "accountsd", "apsd", "securityd", "notifyd"))
or (parent_process_name in ("mdmclient", "mobileassetd", "softwareupdated", "nsurlsessiond", "trustd", "accountsd", "apsd", "securityd") and process_name in ("sh", "bash", "zsh", "python3", "perl", "osascript", "ruby"))
| timeslice 15m
| stats count as event_count, values(event_type) as event_types, values(process_name) as processes by _timeslice, host, user, parent_process_name
| where event_count > 0
| sort by event_count descSumo Logic query correlating Apple endpoint telemetry to detect CVE-2025-31277 exploitation patterns including system daemon crashes and unauthorized shell spawning from privileged Apple processes.
Data Sources
Required Tables
False Positives & Tuning
- Software updates and patch cycles on Apple devices generate legitimate daemon restart events
- macOS sandbox escape testing in authorized penetration test engagements
- Third-party endpoint management tools that legitimately interact with Apple system daemons
Other platforms for CVE-2025-31277
Testing Methodology
Validate this detection against 3 adversary techniques from Atomic Red Team. Each test below lists the behaviour to exercise and the telemetry you should expect to see. Executable commands and cleanup steps are available with Pro.
- Test 1Simulate Apple System Daemon Crash with Non-Zero Exit
Expected signal: Process crash event for 'trustd' (or mock process) with SIGSEGV signal, non-zero exit code, and EXC_BAD_ACCESS exception type visible in /Library/Logs/DiagnosticReports/ and EDR crash telemetry
- Test 2Spawn Shell from Apple Daemon Context (Post-Exploitation Simulation)
Expected signal: ProcessCreate event showing bash spawning /tmp/daemon_spawn_test.sh, with subsequent child processes for whoami, uname, id, and ls commands — EDR should record full process ancestry and command lines
- Test 3Generate Crash Report Artifact for Apple Daemon
Expected signal: File creation event in ~/Library/Logs/DiagnosticReports/ for trustd crash file; log collection agents (Elastic Agent, CrowdStrike) should ingest the .crash file and surface EXC_BAD_ACCESS exception type in SIEM
Unlock Pro Content
Get the full detection package for CVE-2025-31277 including response playbook, investigation guide, and atomic red team tests.