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Digisol DG GR1321’s Password Policy Bypass CVE-2024-2257

  • May 22, 2024
  • Hardware
  • Shravan Singh

The Password Policy Bypass Vulnerability exists in Digisol Router (DG-GR1321: Hardware version 3.7L; Firmware version: v3.2.02) due to improper implementation of password policies. An attacker with physical access could exploit this by creating passwords that do not adhere to the defined security standards/policy on the vulnerable system. Exploitation of this vulnerability could expose a router to potential security risks.

Firmware

Impact of the Vulnerability

Exploitation of this vulnerability could allow a determined attacker to:

  • Bypass password policies: The attacker can create weak or insecure passwords, compromising the router’s security.
  • Gain unauthorized access: By exploiting the vulnerability, the attacker may gain unauthorized control over the router.
  • Network manipulation: The compromised router could be used to manipulate network traffic or settings.
  • Data exposure: Sensitive data passed through a router may be compromised due to unauthorized access.
Firmware

CVE-2024-2257 – Tenable

Vulnerability Description: Password Policy Bypass in Digisol DG-GR1321 Router

The Digisol DG-GR1321 router has a critical vulnerability where users can create passwords that do not adhere to the defined security standards. This issue poses several significant risks:

  1. Password Policy Bypass: Users can set weak passwords that bypass the router’s intended security measures.
  2. Weakened Security: The use of insecure passwords significantly lowers the overall security of the router.
  3. Increased Risk of Unauthorized Access: Hackers exploit weak passwords to gain unauthorized entry to a router.
  4. Exposure to Security Threats: The vulnerability makes the router and connected network more susceptible to data breaches, network manipulation, and other security threats.

Proof-of-Concept: Inadequate Password Enforcement in Digisol DG-GR1321 Router

  1. Single-Digit Password Allowance: Users can create passwords consisting of a single digit.
  2. Bypass of Password Policies: This capability effectively bypasses all of Digisol’s specified password policies.
  3. Undermined Security Measures: The allowance of weak passwords undermines the intended security protocols of the router.
  4. Ease of Exploitation: Attackers can easily exploit this vulnerability due to the simplicity and predictability of single-digit passwords.
password policy bypass
Mitigation:

It is recommended to upgrade the firmware to the latest version. The firmware upgrade may include patches or fixes addressing vulnerabilities. Firmware for DG-GR1321 with hardware version 3.7L and starting with V3.1.XX can be downloaded from Digisol’s firmware website.

TL;DR

The Digisol DG-GR1321 router is vulnerable to a Password Policy Bypass (CVE-2024-2257), which allows attackers to compromise security. Exploiting the flaw enables bypassing password policies, unauthorized access, network manipulation, and data exposure. Attackers exploit by setting single-digit passwords, bypassing all policies and undermining security. It is recommended to upgrade the firmware to the latest version to mitigate the risk and enhance router security.

Redfox Security is a diverse network of expert security consultants with a global mindset and a collaborative culture. If you are looking to improve your organization’s security posture, contact us today to discuss your security testing needs. Our team of security professionals can help you identify vulnerabilities and weaknesses in your systems and provide recommendations to remediate them.

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