diff --git a/README.md b/README.md index 182fd4e..db94c6f 100644 --- a/README.md +++ b/README.md @@ -17,12 +17,10 @@ In post‑pivot testing, misuse of CryptoTokenKit signing operations was observe --- -## Observed Post-Compromise Behavior -- **CryptoTokenKit / identityservicesd signing operations** invoked from compromised context without UI prompts. - *Important:* No Secure Enclave key material was exported; observed misuse is limited to signing operations. -- **System instability / PME behavior** — Media decode failures correlated with PME enforcement logs, GPU link errors, and mediaplaybackd variant switching, occasionally causing device stalls. +## Observed Post‑Compromise Behavior ---- +- **Unauthorized signing:** CryptoTokenKit / identityservicesd invoked signing operations from a compromised context without UI prompts (no Secure Enclave key material exported). +- **System instability:** Media decode failures correlated with PME enforcement logs, GPU/AppleDCP link errors, mediaplaybackd variant‑switch loops and occasional launchd/SoC stalls. ## Scope of Impact @@ -32,9 +30,8 @@ In post‑pivot testing, misuse of CryptoTokenKit signing operations was observe - **Primary component:** AudioConverterService (CoreAudio AAC decoder) — inMagicCookie heap corruption (CVE‑2025‑31200) - **Chained component:** AppleBCMWLAN.dext — AMPDU handling → kernel escalation (CVE‑2025‑31201) - **Privileges required:** None (initial); kernel achieved post‑chain -- **Immediate impact:** Unauthorized Secure Enclave–backed signing via CryptoTokenKit (no key exfiltration observed) -- **Collateral/system impact:** Wireless token manipulation (AWDL/IDS), PME/GPU variant‑switch stalls, launchd SoC stalls - **Impact summary:** Integrity (unauthorized signing, token/device impersonation) + Availability (system stalls); Confidentiality — no key export + --- ## Disclosure Timeline