Description
An issue was discovered in certain Apple products. iOS before 11.2 is affected. macOS before 10.13.2 is affected. tvOS before 11.2 is affected. watchOS before 4.2 is affected. The issue involves the "Kernel" component. It allows attackers to bypass intended memory-read restrictions via a crafted app.
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 macOS High Sierra 10.13 - 'ctl_ctloutput-leak' Information Leak EDB-44234 · local · Dec 7, 2017
GitHub 1 repository
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bazad/ctl_ctloutput-leak ★ 27 · Oct 7, 2017
CVE-2017-13868: Information leak of uninitialized kernel heap data in XNU.
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- https://support.apple.com/HT208331
- https://support.apple.com/HT208327
- https://support.apple.com/HT208325
- 1039966 vdb-entry
- 1039953 vdb-entry
- https://support.apple.com/HT208334
- 1039952 vdb-entry
- 102100 vdb-entry
- https://bazad.github.io/2018/03/a-fun-xnu-infoleak/
- https://github.com/bazad/ctl_ctloutput-leak