Milesight UR32L 32.3.0.5 HTTP Request vtysh_ubus handle_interface_acl interface/in_acl buffer overflow

Summaryinfo

A vulnerability, which was classified as critical, has been found in Milesight UR32L 32.3.0.5. The impacted element is the function handle_interface_acl of the file vtysh_ubus of the component HTTP Request Handler. This manipulation of the argument interface/in_acl causes buffer overflow. This vulnerability is registered as CVE-2023-25090. Remote exploitation of the attack is possible. Furthermore, an exploit is available.

Detailsinfo

A vulnerability has been found in Milesight UR32L 32.3.0.5 and classified as critical. Affected by this vulnerability is the function handle_interface_acl of the file vtysh_ubus of the component HTTP Request Handler. The manipulation of the argument interface/in_acl 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. The summary by CVE is:

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 handle_interface_acl function with the interface and in_acl variables.

The weakness was published 07/06/2023 as TALOS-2023-1716. The advisory is shared at talosintelligence.com. This vulnerability is known as CVE-2023-25090 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.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• Milesight

Name

• UR32L

Version

• 32.3.0.5

License

• commercial

CPE 2.3info

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CPE 2.2info

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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