CVE-2021-46394

CRITICAL

9.8

Description

There is a stack buffer overflow vulnerability in the formSetPPTPServer function of Tenda-AX3 router V16.03.12.10_CN. The v13 variable is directly retrieved from the http request parameter startIp. Then v13 will be splice to stack by function sscanf without any security check, which causes stack overflow. By POSTing the page /goform/SetPptpServerCfg with proper startIp, the attacker can easily perform remote code execution with carefully crafted overflow data.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published3/4/2022

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

tenda:ax3tenda:ax3_firmware

Weaknesses (CWE)

CWE-787

References

https://github.com/sec-bin/IoT-CVE/tree/main/Tenda/AX3/4(cve@mitre.org)

https://github.com/sec-bin/IoT-CVE/tree/main/Tenda/AX3/4(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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