CVE编号
CVE-2021-41848利用情况
暂无补丁情况
N/A披露时间
2022-03-12漏洞描述
An issue was discovered in Luna Simo PPR1.180610.011/202001031830. It mishandles software updates such that local third-party apps can provide a spoofed software update file that contains an arbitrary shell script and arbitrary ARM binary, where both will be executed as the root user with an SELinux domain named osi. To exploit this vulnerability, a local third-party app needs to have write access to external storage to write the spoofed update at the expected path. The vulnerable system binary (i.e., /system/bin/osi_bin) does not perform any authentication of the update file beyond ensuring that it is encrypted with an AES key (that is hard-coded in the vulnerable system binary). Processes executing with the osi SELinux domain can programmatically perform the following actions: install apps, grant runtime permissions to apps (including permissions with protection levels of dangerous and development), access extensive Personally Identifiable Information (PII) using the programmatically grant permissions, uninstall apps, set the default launcher app to a malicious launcher app that spoofs other apps, set a network proxy to intercept network traffic, unload kernel modules, set the default keyboard to a keyboard that has keylogging functionality, examine notification contents, send text messages, and more. The spoofed update can optionally contain an arbitrary ARM binary that will be locally stored in internal storage and executed at system startup to achieve persistent code execution as the root user with the osi SELinux domain. This ARM binary will continue to execute at startup even if the app that provided the spoofed update is uninstalled.解决建议
建议您更新当前系统或软件至最新版，完成漏洞的修复。
参考链接 |
|
|---|---|
| https://athack.com/session-details/401 | |
| https://simowireless.com/ | |
| https://www.kryptowire.com/android-firmware-2022/ | |
| https://www.kryptowire.com/blog/vsim-vulnerability-within-simo-android-phones... |
受影响软件情况
| # | 类型 | 厂商 | 产品 | 版本 | 影响面 | ||||
| 1 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 运行在以下环境 | |||||||||
| 系统 | bluproducts | g90_firmware | - | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | bluproducts | g9_firmware | - | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | luna | simo_firmware | - | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | wikomobile | tommy_3_firmware | - | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | wikomobile | tommy_3_plus_firmware | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | bluproducts | g9 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | bluproducts | g90 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | luna | simo | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | wikomobile | tommy_3 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | wikomobile | tommy_3_plus | - | - | |||||
- 攻击路径 本地
- 攻击复杂度 低
- 权限要求 低
- 影响范围 未更改
- 用户交互 无
- 可用性 高
- 保密性 高
- 完整性 高
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