Description
On Broadcom BCM4355C0 Wi-Fi chips 9.44.78.27.0.1.56 and other chips, an attacker can craft a malformed RRM neighbor report frame to trigger an internal buffer overflow in the Wi-Fi firmware, aka B-V2017061204.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- Apple iOS 10.2 - Broadcom Out-of-Bounds Write when Handling 802.11k Neighbor Report Response EDB-42784 · remote · Sep 25, 2017 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- http://packetstormsecurity.com/files/144328/Broadcom-802.11k-Neighbor-Report-Response-Out-Of-Bounds-Write.html
- 100984 vdb-entry
- https://source.android.com/security/bulletin/2017-09-01
- APPLE-SA-2017-09-25-4 vendor-advisory
- 42784 exploit
- APPLE-SA-2017-09-25-6 vendor-advisory
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1289
- https://support.apple.com/en-us/HT208113
- https://support.apple.com/en-us/HT208112
- https://support.apple.com/HT208113
- https://support.apple.com/HT208112