Memory corruption via unchecked list parameter copy
Published Jul 15, 2024 · Updated Aug 2, 2024
Stack-based buffer overflow in Tenda AX1806 firmware 1.0.0.1 allows remote attackers to corrupt memory through a crafted POST request. The sub_656BC handler takes the list parameter from /goform/SetNetControlList, passes it to formSetQosBand, and copies it with strcpy without checking its length. The HTTP endpoint is reachable without authentication from an adjacent network; the public proof of concept supplies 304 bytes, but no source demonstrates a specific post-corruption outcome.
Summary
What happened
Stack-based buffer overflow in Tenda AX1806 firmware 1.0.0.1 allows remote attackers to corrupt memory through a crafted POST request. The sub_656BC handler takes the list parameter from /goform/SetNetControlList, passes it to formSetQosBand, and copies it with strcpy without checking its length. The HTTP endpoint is reachable without authentication from an adjacent network; the public proof of concept supplies 304 bytes, but no source demonstrates a specific post-corruption outcome.
The record
- CVE
- CVE-2024-40414
- Published
- Jul 15, 2024
- Updated
- Aug 2, 2024
- Vendor
- Shenzhen Tenda Technology Co., Ltd.
- Product
- AX1806 Firmware
- Classifications
- CWE-121, CWE-787, T1190
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 15, 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=1.0.0.1
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
- SetNetControlList oversized list proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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