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).
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
References 5
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-syste…
disclosure@vulncheck.com