PT-2024-6138 · Autel · Autel Maxicharger Ac Elite Business C50

Daan Keuper + 2 · CVE-2024-23967 · Published 2024-06-21 · Updated 2024-10-03

Positive Technologies (AI Summary)

CVSS v3.1

8.0

High

Base vector

AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Autel MaxiCharger AC Elite Business C50 (affected versions not specified)

Description The issue is related to a stack-based buffer overflow vulnerability in the handling of base64-encoded data within WebSocket messages. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Autel MaxiCharger AC Elite Business C50 chargers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the handling of base64-encoded data within WebSocket messages, resulting from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Memory Corruption

Stack Overflow

Weakness Enumeration

CWE-787

CWE-121

Related Identifiers

BDU:2024-07057

CVE-2024-23967

ZDI-24-853

Affected Products

Autel Maxicharger Ac Elite Business C50

References · 10

• https://zerodayinitiative.com/advisories/ZDI-24-853 · Security Note
• https://bdu.fstec.ru/vul/2024-07057 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-23967 · Security Note
• https://osv.dev/vulnerability/CVE-2024-23967 · Vendor Advisory
• https://t.me/latest_high_impact_cve/1227 · Telegram Post
• https://t.me/cvedetector/6597 · Telegram Post
• https://twitter.com/cracbot/status/1841357553730777281 · Twitter Post
• https://t.me/cvenotify/96468 · Telegram Post
• https://cybersecurity-help.cz/vdb/SB2024062422 · Note
• https://securitylab.ru/news/551935.php · Note