Digisol DG-GR1321 3.2.02 Serial Interface on-chip debug and test interface with improper access control

Summaryinfo

A vulnerability, which was classified as critical, has been found in Digisol DG-GR1321 3.2.02. Affected is an unknown function of the component Serial Interface. This manipulation causes on-chip debug and test interface with improper access control. This vulnerability is registered as CVE-2024-4231. It is feasible to perform the attack on the physical device. No exploit is available.

Detailsinfo

A vulnerability classified as critical was found in Digisol DG-GR1321 3.2.02. Affected by this vulnerability is an unknown functionality of the component Serial Interface. The manipulation with an unknown input leads to a on-chip debug and test interface with improper access control vulnerability. The CWE definition for the vulnerability is CWE-1191. The chip does not implement or does not correctly perform access control to check whether users are authorized to access internal registers and test modes through the physical debug/test interface. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

This vulnerability exists in Digisol Router (DG-GR1321: Hardware version 3.7L; Firmware version : v3.2.02) due to presence of root terminal access on a serial interface without proper access control. An attacker with physical access could exploit this by identifying UART pins and accessing the root shell on the vulnerable system. Successful exploitation of this vulnerability could allow the attacker to access the sensitive information on the targeted system.

The advisory is shared at cert-in.org.in. This vulnerability is known as CVE-2024-4231 since 04/26/2024. The exploitation appears to be easy. An attack has to be approached locally. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

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

• Digisol

Name

• DG-GR1321

Version

• 3.2.02

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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Threat Intelligenceinfo

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Entryinfo

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