Advisory Details

May 29th, 2024

(Pwn2Own) Phoenix Contact CHARX SEC-3100 OCPP charx_pack_logs Command Injection Remote Code Execution Vulnerability

ZDI-24-521
ZDI-CAN-23391

CVE ID CVE-2024-28136
CVSS SCORE 7.5, AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS Phoenix Contact
AFFECTED PRODUCTS CHARX SEC-3100
VULNERABILITY DETAILS

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Phoenix Contact CHARX SEC-3100 devices. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the handling of the Charger ID parameter to the Get Diagnostics command. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of the service account.

ADDITIONAL DETAILS Phoenix Contact has issued an update to correct this vulnerability. More details can be found at:
https://cert.vde.com/en/advisories/VDE-2024-019/
DISCLOSURE TIMELINE
  • 2024-02-21 - Vulnerability reported to vendor
  • 2024-05-29 - Coordinated public release of advisory
  • 2024-07-01 - Advisory Updated
CREDIT @ByteInsight
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