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CVE-2020-12109

Status Candidate

Overview

Certain TP-Link devices allow Command Injection. This affects NC200 2.1.9 build 200225, NC210 1.0.9 build 200304, NC220 1.3.0 build 200304, NC230 1.3.0 build 200304, NC250 1.3.0 build 200304, NC260 1.5.2 build 200304, and NC450 1.5.3 build 200304.

Related Files

TP-Link Cloud Cameras NCXXX Bonjour Command Injection
Posted Sep 18, 2020
Authored by Pietro Oliva | Site metasploit.com

TP-Link cloud cameras NCXXX series (NC200, NC210, NC220, NC230, NC250, NC260, NC450) are vulnerable to an authenticated command injection vulnerability. In all devices except NC210, despite a check on the name length in swSystemSetProductAliasCheck, no other checks are in place in order to prevent shell metacharacters from being introduced. The system name would then be used in swBonjourStartHTTP as part of a shell command where arbitrary commands could be injected and executed as root. NC210 devices cannot be exploited directly via /setsysname.cgi due to proper input validation. NC210 devices are still vulnerable since swBonjourStartHTTP did not perform any validation when reading the alias name from the configuration file. The configuration file can be written, and code execution can be achieved by combining this issue with CVE-2020-12110.

tags | exploit, arbitrary, shell, cgi, root, code execution
advisories | CVE-2020-12109
SHA-256 | 820ebca1a60727c3c7198c5f8d186f030d053aca8aaa88544be3fdcb57017f5e
TP-LINK Cloud Cameras NCXXX Bonjour Command Injection
Posted May 1, 2020
Authored by Pietro Oliva

TP-LINK Cloud Cameras including products NC200, NC210, NC220, NC230, NC250, NC260, and NC450 suffer from a command injection vulnerability. The issue is located in the swSystemSetProductAliasCheck method of the ipcamera binary (Called when setting a new alias for the device via /setsysname.fcgi), where despite a check on the name length, no other checks are in place in order to prevent shell metacharacters from being introduced. The system name would then be used in swBonjourStartHTTP as part of a shell command where arbitrary commands could be injected and executed as root.

tags | exploit, arbitrary, shell, root
advisories | CVE-2020-12109
SHA-256 | 51f53a1e5bba2a9ada63d195865ebededf26762f4a245d45d4e986eb40f62c20
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