Milesight UR32L 32.3.0.5 HTTP vtysh_ubus set_dmvpn gre_ip/gre_mask buffer overflow

Summaryinfo

A vulnerability labeled as critical has been found in Milesight UR32L 32.3.0.5. Impacted is the function set_dmvpn of the file vtysh_ubus of the component HTTP Handler. Executing a manipulation of the argument gre_ip/gre_mask can lead to buffer overflow. The identification of this vulnerability is CVE-2023-25103. The attack may be launched remotely. Furthermore, there is an exploit available.

Detailsinfo

A vulnerability has been found in Milesight UR32L 32.3.0.5 and classified as critical. This vulnerability affects the function set_dmvpn of the file vtysh_ubus of the component HTTP Handler. The manipulation of the argument gre_ip/gre_mask 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 arbitrary code execution. An attacker with high privileges can send HTTP requests to trigger these vulnerabilities.This buffer overflow occurs in the set_dmvpn function with the gre_ip and the gre_mask variables.

The weakness was shared 07/06/2023 as TALOS-2023-1716. The advisory is available at talosintelligence.com. This vulnerability was named CVE-2023-25103 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.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• Milesight

Name

• UR32L

Version

• 32.3.0.5

License

• commercial

CPE 2.3info

• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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