Unauthenticated collector crash via unchecked message length
Published Feb 11, 2022 · Updated Aug 3, 2024
Classic buffer overflow in Schneider Electric IGSS Data Collector 15.0.0.21320 and earlier allows remote attackers to restart dc.exe. The opcode 101 handler copies user-supplied data from a constructed network message without first validating its length. No authentication or user interaction is required; the attacker must know the IGSS project directory, and successful exploitation crashes the collector before it automatically restarts.
Summary
What happened
Classic buffer overflow in Schneider Electric IGSS Data Collector 15.0.0.21320 and earlier allows remote attackers to restart dc.exe. The opcode 101 handler copies user-supplied data from a constructed network message without first validating its length. No authentication or user interaction is required; the attacker must know the IGSS project directory, and successful exploitation crashes the collector before it automatically restarts.
The record
- CVE
- CVE-2021-22824
- Published
- Feb 11, 2022
- Updated
- Aug 3, 2024
- Vendor
- Distributed Data Systems
- Product
- IGSS Data Collector
- Classifications
- CWE-120, T1499.004
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 11, 2022CVE 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=Interactive Graphical SCADA System Data Collector (dc.exe) (V15.0.0.21320 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
- igss_dc_opcode_101_dos.pyproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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