Advisory Details

December 11th, 2024

AutomationDirect C-More EA9 EAP9 File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability

ZDI-24-1673
ZDI-CAN-24772

CVE ID CVE-2024-11609
CVSS SCORE 7.8, AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AFFECTED VENDORS AutomationDirect
AFFECTED PRODUCTS C-More EA9
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of AutomationDirect C-More EA9. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the parsing of EAP9 files. The issue results from the lack of proper validation of 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 current process.

ADDITIONAL DETAILS AutomationDirect has issued an update to correct this vulnerability. More details can be found at:
https://certvde.com/en/bulletins/bulletins/2182-automationdirect-c-more-ea9-programming-software/
DISCLOSURE TIMELINE
  • 2024-07-30 - Vulnerability reported to vendor
  • 2024-12-11 - Coordinated public release of advisory
  • 2024-12-11 - Advisory Updated
CREDIT Andrea Micalizzi aka rgod (@rgod777)
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