Unauthenticated denial of service via long filenames
Published Dec 12, 2023 · Updated Aug 3, 2024
Buffer overflow in Siemens SIMATIC and SINAMICS webservers allows remote attackers to interrupt devices via long filenames. The webserver uses an incorrect length for a buffer access while processing an overlong filename; Siemens has not identified the responsible function. No authentication or user interaction is required, but network access to an enabled webserver is necessary, and exploitation interrupts availability without reported data disclosure or modification.
Summary
What happened
Buffer overflow in Siemens SIMATIC and SINAMICS webservers allows remote attackers to interrupt devices via long filenames. The webserver uses an incorrect length for a buffer access while processing an overlong filename; Siemens has not identified the responsible function. No authentication or user interaction is required, but network access to an enabled webserver is necessary, and exploitation interrupts availability without reported data disclosure or modification.
The record
- CVE
- CVE-2022-47375
- Published
- Dec 12, 2023
- Updated
- Aug 3, 2024
- Vendor
- Siemens
- Product
- SIMATIC S7-400 CPU 416F-3 PN/DP
- Classifications
- CWE-805, T1499.004
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Dec 12, 2023CVE 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
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=All versions
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.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo