Schneider Electric Zelio Soft 2 ZM2 File Parsing Use-After-Free Remote Code Execution Vulnerability

October 17th, 2024
ZDI-24-1415 ZDI-CAN-22347

CVE ID

CVE-2024-8422

CVSS Score

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

Affected Vendors

Schneider Electric

Affected Products

Zelio Soft 2

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Schneider Electric Zelio Soft 2. 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 ZM2 files. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process.

Additional Details

Schneider Electric has issued an update to correct this vulnerability. More details can be found at:
https://www.cisa.gov/news-events/ics-advisories/icsa-24-284-14

Disclosure Timeline

  • 2024-03-27 - Vulnerability reported to vendor
  • 2024-10-17 - Coordinated public release of advisory
  • 2024-10-17 - Advisory Updated

Credit

rgod

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