Code execution via unchecked WSP file lengths
Published Jun 11, 2021 · Updated Aug 3, 2024
Out-of-bounds reads in Schneider Electric IGSS Definition 15.0.0.21140 and earlier allow attackers to execute code via a malicious WSP file. The Def.exe WSP parser fails to check embedded lengths before reading file data, allowing reads to extend beyond the intended buffer. Execution requires a user to cause Definition to parse the crafted file; exploitation can result in data loss or code execution in that user's context.
Summary
What happened
Out-of-bounds reads in Schneider Electric IGSS Definition 15.0.0.21140 and earlier allow attackers to execute code via a malicious WSP file. The Def.exe WSP parser fails to check embedded lengths before reading file data, allowing reads to extend beyond the intended buffer. Execution requires a user to cause Definition to parse the crafted file; exploitation can result in data loss or code execution in that user's context.
The record
- CVE
- CVE-2021-22753
- Published
- Jun 11, 2021
- Updated
- Aug 3, 2024
- Vendor
- Schneider Electric
- Product
- IGSS
- Classifications
- CWE-125, 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
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Is a vulnerable build present?
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- 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.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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