CVE-2009-1235

macOS X < 10.5.6 - Privilege Escalation via HFS IOCTL Handler

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2009-1235. PoCs published by mu-b.

AI-analyzed exploit summary This exploit targets a local privilege escalation vulnerability in Apple MACOS X xnu kernels (versions 792.0 to 1228.x) by manipulating HFS file system attributes and leveraging a kernel memory corruption flaw. It uses shellcode to overwrite kernel structures and achieve root privileges.

Description

XNU 1228.9.59 and earlier on Apple Mac OS X 10.5.6 and earlier does not properly restrict interaction between user space and the HFS IOCTL handler, which allows local users to overwrite kernel memory and gain privileges by attaching an HFS+ disk image and performing certain steps involving HFS_GET_BOOT_INFO fcntl calls.

Exploits (1)

exploitdb WORKING POC VERIFIED
by mu-b · bashlocalosx
https://www.exploit-db.com/exploits/8266

This exploit targets a local privilege escalation vulnerability in Apple MACOS X xnu kernels (versions 792.0 to 1228.x) by manipulating HFS file system attributes and leveraging a kernel memory corruption flaw. It uses shellcode to overwrite kernel structures and achieve root privileges.

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Moderate
Reliability
Reliable
Target: Apple MACOS X xnu kernel versions 792.0 to 1228.x
Auth required
Prerequisites: Local access to a vulnerable MACOS X system · Ability to compile and execute the exploit
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (13)

Core 13
Core References
Vendor Advisory x_refsource_confirm
http://support.apple.com/kb/HT3757
Vendor Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2009/0822
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/36096
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/34424
Mailing List vendor-advisory x_refsource_apple
http://lists.apple.com/archives/security-announce/2009/Aug/msg00001.html
Exploit vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/34203
Exploit, Third Party Advisory exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/8266
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id?1022671
Third Party Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2009/2172
US Government Resource third-party-advisory x_refsource_cert
http://www.us-cert.gov/cas/techalerts/TA09-218A.html

Scores

EPSS 0.0098
EPSS Percentile 57.6%

Details

CWE
CWE-264
Status published
Products (47)
apple/mac_os_x 10.0
apple/mac_os_x 10.0.0
apple/mac_os_x 10.0.1
apple/mac_os_x 10.0.2
apple/mac_os_x 10.0.3
apple/mac_os_x 10.0.4
apple/mac_os_x 10.1
apple/mac_os_x 10.1.0
apple/mac_os_x 10.1.1
apple/mac_os_x 10.1.2
... and 37 more
Published Apr 02, 2009
Tracked Since Feb 18, 2026