Tests: 
Adapter for NaviMower from Segway
Only login is working.
Status and controlling is secured by custom encryption library by navimow. At the moment there is no way known to simulate the encryption and decryption.
The Navimow has a complex debug detection the app version 1.4.9 is easier to debug then 2.0.0
Example Post request:
POST https://navimow-fra.ninebot.com/vehicle/vehicle/index
Payload:
h = MD5 Hash of the payload
k = clientKey
d = postdata =Example AES 128 key: 66 b9 24 37 f7 d5 f4 c4 c1 32 c7 74 fa e9 18 86
AES Key is changing every request
Response:
{"keyDataTwo":"5K0E8400-E29","data":"eyJjdXJyZW50X3ZlcnNpb24iO","platform":1,"keyDataOne":"segway.mower","timeStamp":1696799374783,"keyDataThree":"321A2EF1F010","keyDataFour":"52428.278076"}
data:
{"current_version":104090001,"checkcode":"1a478b9dcf053990c1900294a834cbff","platform":"iOS","vehicle_type":"20000001","vehicle_sn":"XXXXXX","language":"de","device_id":"XXX-xx-xxx-xxxx-XXXXXXX","serviceTime":1696799373292.8428,"ostype":"ios","platform_ver":"14.8","client_ver":104090001,"access_token":"x.x.w3-x-x","uid":"268XXX"}
The app is secured by mutiple frameworks:
libRSSupport.so
libbugsnag-root-detection.so
libnbcrypto.so
libnetseckit-4.3.1.so
libbugsnag-ndk.so
libc++_shared.so
libnesec-x86.so
libpl_droidsonroids_gif.so
libbugsnag-plugin-android-anr.so
libmarsxlog.so
libnesec.so
librsjni.so
BugSnag
SecNeo:
https://bbs.kanxue.com/thread-273614.htm
https://zhuanlan.zhihu.com/p/551331698
https://www.leiphone.com/category/gbsecurity/TABfBNU8x0lZIPoT.html
https://blog.csdn.net/weixin_39738152/article/details/111000036
Custom crypto:
libnbcrypto.so
Function extracted with Ghidra:
AES*ECB_decrypt
AES_ECB_encrypt
AES_init_ctx
AsciiToHex
array2String
BKDRHash
crypto*
crypto*get_version
crypto_start_once_sn
entry
FUN_001
initParams
Java_cn_ninebot_nbcrypto_NbEncryption*
Java*cn_ninebot_nbcrypto_NbEncryption_crypto_1decrypt
Java_cn_ninebot_nbcrypto_NbEncryption_crypto_1encrypt
Java_cn_ninebot_nbcrypto_NbEncryption_crypto_1init
Java_cn_ninebot_nbcrypto_NbEncryption_crypto_1reset_1sn
Java_cn_ninebot_nbcrypto_NbEncryption_crypto_1setAuthParam
Java_cn_ninebot_nbcrypto_NbEncryption_crypto_1setKey
Java_cn_ninebot_nbcrypto_NbEncryption_crypto_1start_1sn
Java_cn_ninebot_nbcrypto_NbEncryption_getDate
Java_cn_ninebot_nbcrypto_NbEncryption_getVersion
Java_cn_ninebot_nbcrypto_NbEncryption_hash
Java_cn_ninebot_nbcrypto_NbEncryption_setData
Key_rule_analysis
mbedtls*
mbedtls*internal_sha1_process
mbedtls_sha1
mbedtls_sha1_clone
mbedtls_sha1_finish
mbedtls_sha1_finish_ret
mbedtls_sha1_free
mbedtls_sha1_init
mbedtls_sha1_process
mbedtls_sha1_ret
mbedtls_sha1_starts
mbedtls_sha1_starts_ret
mbedtls_sha1_update
mbedtls_sha1_update_ret
nb*
nb_crypto_init
nb_decrypt
nb_encrypt
operator.
r
rc4_crypt
rc4_setup
resetParams
set
setAuthParam
setKeys
The idea is to use the .so file as it is or reverse engineering the methods
This is an example to use a .so file in a docker
https://github.com/Hacksore/hyundai-kia-stamp/tree/arm
- (TA2k) initial release
MIT License
Copyright (c) 2023 TA2k tombox2020@gmail.com
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.