Advisory Details

February 20th, 2019

Horner Automation Cscape CSP File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

ZDI-19-227
ZDI-CAN-7615

CVE ID CVE-2019-6555
CVSS SCORE 7.8, AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AFFECTED VENDORS Horner Automation
AFFECTED PRODUCTS Cscape
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Horner Automation Cscape. 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 processing of CSP files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated structure. An attacker can leverage this vulnerability to execute code in the context of the current process.

ADDITIONAL DETAILS Horner Automation has issued an update to correct this vulnerability. More details can be found at:
https://ics-cert.us-cert.gov/advisories/ICSA-19-050-03
DISCLOSURE TIMELINE
  • 2018-11-30 - Vulnerability reported to vendor
  • 2019-02-20 - Coordinated public release of advisory
CREDIT Anonymous
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