Milesight UR32L 32.3.0.5 HTTP Request vtysh_ubus set_qos attach_class buffer overflow

Summaryinfo

A vulnerability was found in Milesight UR32L 32.3.0.5. It has been declared as critical. Affected by this issue is the function set_qos of the file vtysh_ubus of the component HTTP Request Handler. The manipulation of the argument attach_class results in buffer overflow. This vulnerability is known as CVE-2023-25097. It is possible to launch the attack remotely. Furthermore, an exploit is available.

Detailsinfo

A vulnerability classified as critical has been found in Milesight UR32L 32.3.0.5. Affected is the function set_qos of the file vtysh_ubus of the component HTTP Request Handler. The manipulation of the argument attach_class with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as 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. This is going to have an impact on 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_qos function with the attach_class variable.

The weakness was published 07/06/2023 as TALOS-2023-1716. The advisory is available at talosintelligence.com. This vulnerability is traded as CVE-2023-25097 since 02/02/2023. Technical details and a public exploit are known.

The exploit is shared for download 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.

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Productinfo

Vendor

• Milesight

Name

• UR32L

Version

• 32.3.0.5

License

• commercial

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CPE 2.2info

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