CVE-2024-3765

A vulnerability classified as critical was found in Xiongmai AHB7804R-MH-V2, AHB8004T-GL, AHB8008T-GL, AHB7004T-GS-V3, AHB7004T-MHV2, AHB8032F-LME and XM530_R80X30-PQ_8M. Affected by this vulnerability is an unknown functionality of the component Sofia Service. The manipulation with the input ff00000000000000000000000000f103250000007b202252657422203a203130302c202253657373696f6e494422203a202230783022207d0a leads to improper access controls. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-260605 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Weakness

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Extended Description

Access control involves the use of several protection mechanisms such as:

When any mechanism is not applied or otherwise fails, attackers can compromise the security of the product by gaining privileges, reading sensitive information, executing commands, evading detection, etc. There are two distinct behaviors that can introduce access control weaknesses:

Potential Mitigations

• Compartmentalize the system to have “safe” areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
• Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.

Related Attack Patterns

• https://cwe.mitre.org/data/definitions/19.html
• https://cwe.mitre.org/data/definitions/441.html
• https://cwe.mitre.org/data/definitions/478.html
• https://cwe.mitre.org/data/definitions/479.html
• https://cwe.mitre.org/data/definitions/502.html
• https://cwe.mitre.org/data/definitions/503.html
• https://cwe.mitre.org/data/definitions/536.html
• https://cwe.mitre.org/data/definitions/546.html
• https://cwe.mitre.org/data/definitions/550.html
• https://cwe.mitre.org/data/definitions/551.html
• https://cwe.mitre.org/data/definitions/552.html
• https://cwe.mitre.org/data/definitions/556.html
• https://cwe.mitre.org/data/definitions/558.html
• https://cwe.mitre.org/data/definitions/562.html
• https://cwe.mitre.org/data/definitions/563.html
• https://cwe.mitre.org/data/definitions/564.html
• https://cwe.mitre.org/data/definitions/578.html

References

• https://github.com/netsecfish/xiongmai_incorrect_access_control
• https://github.com/netsecfish/xiongmai_incorrect_access_control/blob/main/pocCheck3-en.py
• https://vuldb.com/?ctiid.260605
• https://vuldb.com/?id.260605
• https://vuldb.com/?submit.311903