CVE-2023-25081 Memory corruption in UR32L
A high-privilege attacker can trigger buffer overflows in the vtysh_ubus binary via crafted HTTP requests, leading to arbitrary code execution on Milesight UR32L devices.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-25081?
CVE-2023-25081 is a high-severity memory corruption vulnerability in Milesight Ur32l Firmware, published on 6 Jul 2023. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Multiple buffer overflow vulnerabilities exist in the vtysh_ubus binary of Milesight UR32L v32.3.0.5 due to the use of an unsafe sprintf pattern. A specially crafted HTTP request can lead to arbitrary code execution. An attacker with high privileges can send HTTP requests to trigger these vulnerabilities.This buffer overflow occurs in the firewall_handler_set function with the src and dmz variables.
Which versions are affected by CVE-2023-25081?
It affects 1 product.
Products include Milesight Ur32l Firmware.
How do I fix CVE-2023-25081?
No fix has been published for CVE-2023-25081 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2023-25081 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-25081 exists.
Other vulnerabilities in Milesight Ur32l Firmware
Sources
Also known as GHSA-94v2-xqrr-rhjc.