Authenticated router crash via unchecked Wi-Fi parameter copy
Published Nov 7, 2023 · Updated Oct 28, 2024
Stack overflow in Tenda AX1806 Firmware 1.0.0.1 allows remote authenticated users to crash the router via a crafted Wi-Fi request. In sub_455D4, called by fromSetWirelessRepeat, the wpapsk_crypto HTTP parameter is copied into the fixed-size v16 stack buffer without a length check unless it equals tkip&aes. The published proof of concept includes a password cookie and demonstrates a router crash; further code execution is suggested but not demonstrated.
Summary
What happened
Stack overflow in Tenda AX1806 Firmware 1.0.0.1 allows remote authenticated users to crash the router via a crafted Wi-Fi request. In sub_455D4, called by fromSetWirelessRepeat, the wpapsk_crypto HTTP parameter is copied into the fixed-size v16 stack buffer without a length check unless it equals tkip&aes. The published proof of concept includes a password cookie and demonstrates a router crash; further code execution is suggested but not demonstrated.
The record
- CVE
- CVE-2023-47456
- Published
- Nov 7, 2023
- Updated
- Oct 28, 2024
- Vendor
- Shenzhen Tenda Technology Co., Ltd.
- Product
- AX1806 Firmware
- Classifications
- CWE-125, T1499.004
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Nov 7, 2023CVE publishedPublication date reported by the CVE source.
- Oct 28, 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?
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
- fromSetWirelessRepeat HTTP POST proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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