Unauthenticated code execution via oversized Authorization URI
Published Dec 18, 2024 · Updated Dec 18, 2024
Heap-based buffer overflow in Rockwell Automation PowerMonitor 1000 before 4.020 allows remote attackers to execute code or crash the device. During HTTP Digest processing, sprintf builds method:URI in a fixed heap buffer without checking that the combined value stays within 254 bytes. The parser handles the oversized Authorization URI before authentication, so no credentials are required; exploitation crashes the meter or enables code execution.
Summary
What happened
Heap-based buffer overflow in Rockwell Automation PowerMonitor 1000 before 4.020 allows remote attackers to execute code or crash the device. During HTTP Digest processing, sprintf builds method:URI in a fixed heap buffer without checking that the combined value stays within 254 bytes. The parser handles the oversized Authorization URI before authentication, so no credentials are required; exploitation crashes the meter or enables code execution.
The record
- CVE
- CVE-2024-12372
- Published
- Dec 18, 2024
- Updated
- Dec 18, 2024
- Vendor
- Rockwell Automation
- Product
- PowerMonitor 1000 1408-BC3A-ENT
- Classifications
- CWE-94, CWE-122, T1210
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Dec 18, 2024CVE publishedPublication date reported by the CVE source.
- Dec 18, 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=<4.020
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
- Oversized HTTP Digest Authorization URI demonstrationproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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