PT-2017-7822 · Allwinner · Allwinner 3.4 Legacy Kernel

H00Die + 1 · Published 2017-03-27 · Updated 2021-04-21 · CVE-2016-10225

Positive Technologies (AI Summary)

CVSS v2.0

7.2

High

Base vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Allwinner 3.4 legacy kernel for H3, A83T and H8 devices

Description The issue allows local users to gain root privileges. This is achieved by sending "rootmydevice" to the /proc/sunxi debug/sunxi debug API endpoint.

Recommendations For Allwinner 3.4 legacy kernel for H3, A83T and H8 devices, consider restricting access to the /proc/sunxi debug/sunxi debug endpoint to prevent exploitation.

Exploit

Fix

Weakness Enumeration

CWE-264

Related Identifiers

CVE-2016-10225

Affected Products

Allwinner 3.4 Legacy Kernel

References · 8

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/local/allwinner_backdoor.rb · Exploit
• 🔥 https://rapid7.com/db/modules/exploit/multi/local/allwinner_backdoor · Exploit
• http://openwall.com/lists/oss-security/2016/10/05/16 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2016-10225 · Security Note
• https://irclog.whitequark.org/linux-sunxi/2016-04-29#16314390 · Note
• http://securityfocus.com/bid/93442 · Note
• http://openwall.com/lists/oss-security/2017/02/15/9 · Note
• https://forum.armbian.com/index.php?/topic/1108-security-alert-for-allwinner-sun8i-h3a83th8 · Note