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CVE-2024-54471 macOS NetAuthAgent Flaw: Detection & IOCs

A local process can pull iCloud tokens from macOS NetAuthAgent via CVE-2024-54471. Use 9 detection rules, 5 IOCs and a free Splunk SPL rule to spot it.

Read the full threat intel for CVE-2024-54471 macOS NetAuthAgent Flaw: Detection & IOCs →

Chapters

  1. 0:00The hookUnverified NetAuthAgent routine 19 leaks stored credentials.
  2. 0:05The storyLets any local app steal internet passwords.
  3. 0:11Attack pathAccording to researchers, routine 19 sends a credential request.
  4. 0:29AttributionNo threat actor is attributed.
  5. 0:34Indicators of compromise1 indicator to hunt: 1 path.
  6. 0:39MITRE ATT&CK techniques8 ATT&CK techniques, from initial access to collection.
  7. 0:44Remediation2 steps now: Update macOS to Sequoia 15.1, Sonoma.
  8. 0:50Detection rules9 detection rules, in SPL, KQL and Sigma.
Transcript

0:00Unverified NetAuthAgent routine 19 leaks stored credentials.

0:06Lets any local app steal internet passwords.

0:08Then decrypt iCloud data.

0:11According to researchers, routine 19 sends a credential request.

0:16Receives passwords.

0:18Recovers iCloud key.

0:19Decrypts account file, extracts API tokens.

0:23Replays them against iCloud APIs.

0:26Accesses iCloud data.

0:30No threat actor is attributed. Confidence: low.

0:341 indicator to hunt: 1 path.

0:398 ATT&CK techniques, from initial access to collection.

0:442 steps now: Update macOS to Sequoia 15.1, Sonoma.

0:519 detection rules, in SPL, KQL and Sigma.

0:56Threadlinqs. The unified security engineering platform.