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The sunxi-debug driver in the Allwinner 3.4 legacy kernel for H3, A83T, and H8 devices contains a vulnerability that allows local users to gain root privileges. By writing the string "rootmydevice" to the /proc/sunxi_debug/sunxi_debug interface, an unprivileged local user can escalate their privileges to root due to insufficient access control in the driver.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a single Metasploit module (modules/exploits/multi/local/allwinner_backdoor.rb) that exploits a local privilege escalation vulnerability (CVE-2016-10225) in Allwinner SoC devices running a 3.4 legacy kernel. The exploit targets a debug backdoor present at /proc/sunxi_debug/sunxi_debug, which allows an attacker with local code execution to escalate privileges to root by writing a specific string ('rootmydevice') to the backdoor file and executing a payload as root. The module is weaponized, supporting customizable payloads (defaulting to a Meterpreter reverse shell) and is suitable for use against a range of Allwinner-based devices and single-board computers. The code is written in Ruby and is structured as a standard Metasploit local exploit module.
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