Code execution via unchecked CGF import
Published Jun 11, 2021 · Updated Aug 3, 2024
Use-after-free in IGSS Definition 15.0.0.21140 and earlier allows remote attackers to execute code through a malicious CGF file. During CGF import, Def.exe processes unchecked file data after associated memory has been freed, creating a memory-corruption condition. Exploitation requires a user to import the crafted file; successful execution runs in the Definition process context and can also cause loss of project data.
Summary
What happened
Use-after-free in IGSS Definition 15.0.0.21140 and earlier allows remote attackers to execute code through a malicious CGF file. During CGF import, Def.exe processes unchecked file data after associated memory has been freed, creating a memory-corruption condition. Exploitation requires a user to import the crafted file; successful execution runs in the Definition process context and can also cause loss of project data.
The record
- CVE
- CVE-2021-22759
- Published
- Jun 11, 2021
- Updated
- Aug 3, 2024
- Vendor
- Distributed Data Systems
- Product
- IGSS (Interactive Graphical SCADA System)
- Classifications
- CWE-416, T1203, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 11, 2021CVE publishedPublication date reported by the CVE source.
- Aug 3, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=IGSS Definition (Def.exe) V15.0.0.21140 and prior
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo