A vulnerability classified as critical was found in Milesight UR32L 32.3.0.5. This vulnerability affects the function handle_interface_acl of the component HTTP Request Handler. The manipulation of the argument interface with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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 a buffer overflow. An attacker can send HTTP requests to trigger these vulnerabilities.This buffer overflow occurs in the handle_interface_acl function with the interface variable when in_acl is -1.

The weakness was disclosed 07/06/2023 as TALOS-2023-1716. The advisory is available at talosintelligence.com. This vulnerability was named CVE-2023-25089 since 02/02/2023. Technical details and also a public exploit are known.

It is possible to download the exploit at talosintelligence.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Productinfo

Vendor

• Milesight

Name

• UR32L

Version

• 32.3.0.5

License

• commercial

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Discussion