CVE-2023-33294 Command injection in n/a
A local web server in KaiOS allows remote attackers to execute arbitrary Bash commands as root via browser requests, enabling data theft and system modification.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-33294?
CVE-2023-33294 is a critical command injection vulnerability in n/a, published on 22 May 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in KaiOS 3.0 before 3.1. The /system/bin/tctweb_server binary exposes a local web server that responds to GET and POST requests on port 2929. The server accepts arbitrary Bash commands and executes them as root. Because it is not permission or context restricted and returns proper CORS headers, it's accessible to all websites via the browser. At a bare minimum, this allows an attacker to retrieve a list of the user's installed apps, notifications, and downloads. It also allows an attacker to delete local files and modify system properties including the boolean persist.moz.killswitch property (which would render the device inoperable). This vulnerability is partially mitigated by SELinux which prevents reads, writes, or modifications to files or permissions within protected partitions.
Weakness: CWE-77
Which versions are affected by CVE-2023-33294?
It affects 1 product.
Products include Kaiostech Kaios.
How do I fix CVE-2023-33294?
No fix has been published for CVE-2023-33294 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2023-33294 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-33294 exists.
Other vulnerabilities in n/a
Sources
Also known as GHSA-vc96-4fr5-fvv6.