Autel MaxiCharger AC Elite Business C50 DLB_HostHeartBeat stack-based overflow

Summaryinfo

A vulnerability has been found in Autel MaxiCharger AC Elite Business C50 and classified as critical. Impacted is the function DLB_HostHeartBeat. This manipulation causes stack-based overflow. This vulnerability is handled as CVE-2024-23957. The attack can be initiated remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as very critical was found in Autel MaxiCharger AC Elite Business C50 (the affected version unknown). Affected by this vulnerability is the function DLB_HostHeartBeat. The manipulation with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Autel MaxiCharger AC Elite Business C50 DLB_HostHeartBeat Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Autel MaxiCharger AC Elite Business C50 charging stations. Authentication is not required to exploit this vulnerability. The specific flaw exists within the DLB_HostHeartBeat handler of the DLB protocol implementation. When parsing an AES key, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the device. Was ZDI-CAN-23241

The advisory is shared at zerodayinitiative.com. This vulnerability is known as CVE-2024-23957 since 01/25/2024. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/04/2024).

Upgrading eliminates this vulnerability.

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Productinfo

Vendor

• Autel

Name

• MaxiCharger AC Elite Business C50

CPE 2.3info

• 🔍

CPE 2.2info

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Entryinfo

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