Persistent code execution via CIP memory overwrite
Published Jul 12, 2023 · Updated Aug 2, 2024
Out-of-bounds writes in ControlLogix communication modules allow remote attackers to execute persistent code via crafted CIP messages. The CIP message-processing path accepts out-of-specification traffic to implemented objects and permits arbitrary writes to module memory or firmware. Network access to the module is sufficient; exploitation can alter or exfiltrate transit data and disrupt or manipulate control and view.
Summary
What happened
Out-of-bounds writes in ControlLogix communication modules allow remote attackers to execute persistent code via crafted CIP messages. The CIP message-processing path accepts out-of-specification traffic to implemented objects and permits arbitrary writes to module memory or firmware. Network access to the module is sufficient; exploitation can alter or exfiltrate transit data and disrupt or manipulate control and view.
The record
- CVE
- CVE-2023-3595
- Published
- Jul 12, 2023
- Updated
- Aug 2, 2024
- Vendor
- Rockwell Automation
- Product
- 1756-EN3TR
- Classifications
- CWE-787, CAPEC-100, T0866
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 12, 2023CVE publishedPublication date reported by the CVE source.
- Aug 2, 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=<=11.003
- Affected versionversion=<=5.008 & 5.028
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
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.
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Reported exploitation
Technologies
Your stack
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Your stack
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