Heap corruption via unchecked path length
Published May 28, 2024 · Updated Feb 13, 2025
Out-of-bounds write in AutomationDirect P3-550E 1.2.10.9 allows remote attackers to corrupt heap memory via a crafted UDP packet. The Delete File handler at firmware offset 0xb69c8 uses the attacker-controlled path_len value as an unchecked index when appending a null terminator. An unauthenticated sender that can reach the Programming Software Connection service on UDP port 9999 can write one null byte outside the path buffer, corrupt adjacent heap data, and interrupt the controller.
Summary
What happened
Out-of-bounds write in AutomationDirect P3-550E 1.2.10.9 allows remote attackers to corrupt heap memory via a crafted UDP packet. The Delete File handler at firmware offset 0xb69c8 uses the attacker-controlled path_len value as an unchecked index when appending a null terminator. An unauthenticated sender that can reach the Programming Software Connection service on UDP port 9999 can write one null byte outside the path buffer, corrupt adjacent heap data, and interrupt the controller.
The record
- CVE
- CVE-2024-24954
- Published
- May 28, 2024
- Updated
- Feb 13, 2025
- Vendor
- AutomationDirect
- Product
- P3-550E Firmware
- Classifications
- CWE-787, T1499.004
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 28, 2024CVE publishedPublication date reported by the CVE source.
- Feb 13, 2025Record 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=1.2.10.9
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
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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