Unauthenticated denial of service via unchecked sprintf
Published Jul 24, 2024 · Updated Aug 2, 2024
Stack-based buffer overflow in Tenda FH1201 1.2.0.14 allows remote attackers to crash the router via a crafted mitInterface value. The RouteStatic handler passes mitInterface to sprintf for copying into the fixed-size stack buffer v6 without checking the input length. The proof of concept sends an unauthenticated HTTP POST with an oversized value; published evidence demonstrates denial of service, not code execution.
Summary
What happened
Stack-based buffer overflow in Tenda FH1201 1.2.0.14 allows remote attackers to crash the router via a crafted mitInterface value. The RouteStatic handler passes mitInterface to sprintf for copying into the fixed-size stack buffer v6 without checking the input length. The proof of concept sends an unauthenticated HTTP POST with an oversized value; published evidence demonstrates denial of service, not code execution.
The record
- CVE
- CVE-2024-41464
- Published
- Jul 24, 2024
- Updated
- Aug 2, 2024
- Vendor
- Shenzhen Tenda Technology Co., Ltd.
- Product
- FH1201
- Classifications
- CWE-787, CWE-120, T1499.004
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 24, 2024CVE 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=v1.2.0.14
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
- FH1201 RouteStatic2 HTTP proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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