The sunxi-debug driver in Allwinner 3.4 legacy kernel for H3, A83T and H8 devices allows local users to gain root privileges by sending rootmydevice to /proc/sunxi_debug/sunxi_debug.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Linux-3.4-sunxi | Allwinner | - (including) | - (including) |
References
- http://www.openwall.com/lists/oss-security/2016/10/05/16
- http://www.openwall.com/lists/oss-security/2017/02/15/9
- http://www.securityfocus.com/bid/93442
- https://forum.armbian.com/index.php?/topic/1108-security-alert-for-allwinner-sun8i-h3a83th8/
- https://irclog.whitequark.org/linux-sunxi/2016-04-29#16314390
- https://www.rapid7.com/db/modules/exploit/multi/local/allwinner_backdoor
- http://www.openwall.com/lists/oss-security/2016/10/05/16
- http://www.openwall.com/lists/oss-security/2017/02/15/9
- http://www.securityfocus.com/bid/93442
- https://forum.armbian.com/index.php?/topic/1108-security-alert-for-allwinner-sun8i-h3a83th8/
- https://irclog.whitequark.org/linux-sunxi/2016-04-29#16314390
- https://www.rapid7.com/db/modules/exploit/multi/local/allwinner_backdoor