Description
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).
CVSS breakdown
CVSS 4.0
Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality (Vulnerable System)
High
Integrity (Vulnerable System)
High
Availability (Vulnerable System)
High
Confidentiality (Subsequent System)
None
Integrity (Subsequent System)
None
Availability (Subsequent System)
None
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected products
- Beijing Topsec Network Security Technology Co., Ltd. / Tianxin Internet Behavior Management System0 – 4.0.0.7_20210716.180815
References
- MISChttps://www.cnvd.org.cn/flaw/show/CNVD-2021-41972
- MISChttps://www.cnvd.org.cn/patchInfo/show/280166
- MISChttps://cn-sec.com/archives/4631959.html
- MISChttps://avd.aliyun.com/detail?id=AVD-2021-890232
- VENDOR_ADVISORYhttps://www.vulncheck.com/advisories/tianxin-internet-behavior-management-system-command-injection-via-toquery-php