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CVE-2021-4473

CRITICAL

9.8

Descripcion

Tianxin Internet Behavior Management System contains a command injection vulnerability in the Reporter component endpoint that allows unauthenticated attackers to execute arbitrary commands by supplying a crafted objClass parameter containing shell metacharacters and output redirection. Attackers can exploit this vulnerability to write malicious PHP files into the web root and achieve remote code execution with the privileges of the web server process. This vulnerability has been fixed in version NACFirmware_4.0.0.7_20210716.180815_topsec_0_basic.bin. Exploitation evidence was first observed by the Shadowserver Foundation on 2024-06-01 (UTC).

Detalles CVE

Puntuacion CVSS v3.19.8

SeveridadCRITICAL

Vector CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado4/7/2026

Ultima modificacion4/7/2026

Fuentenvd

Avistamientos honeypot0

Debilidades (CWE)

CWE-78

Referencias

https://avd.aliyun.com/detail?id=AVD-2021-890232(disclosure@vulncheck.com)

https://cn-sec.com/archives/4631959.html(disclosure@vulncheck.com)

https://www.cnvd.org.cn/flaw/show/CNVD-2021-41972(disclosure@vulncheck.com)

https://www.cnvd.org.cn/patchInfo/show/280166(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/tianxin-internet-behavior-management-system-command-injection-via-toquery-php(disclosure@vulncheck.com)

Correlaciones IOC

Sin correlaciones registradas

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