Schneider Electric GUIcon GD1 File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability
Vulnerability Details
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Schneider Electric GUIcon. 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 parsing of a GD1 file. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the process.
Additional Details
Schneider Electric has issued an update to correct this vulnerability. More details can be found at:
https://ics-cert.us-cert.gov/advisories/ICSA-18-347-01
Disclosure Timeline
- 2018-07-27 - Vulnerability reported to vendor
- 2018-12-14 - Coordinated public release of advisory
Credit
mdm and rgod of 9SG Security Team
