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CVE-2021-1472

Status Candidate

Overview

Multiple vulnerabilities exist in the web-based management interface of Cisco Small Business RV Series Routers. A remote attacker could execute arbitrary commands or bypass authentication and upload files on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.

Related Files

Cisco Small Business RV Series Authentication Bypass / Command Injection
Posted Feb 1, 2022
Authored by jbaines-r7, Takeshi Shiomitsu | Site metasploit.com

This Metasploit module exploits an authentication bypass (CVE-2021-1472) and command injection (CVE-2021-1473) in the Cisco Small Business RV series of VPN/routers. The device does not adequately verify the credentials in the HTTP Authorization field when requests are made to the /upload endpoint. Then the upload.cgi binary will use the contents of the HTTP Cookie field as part of a curl request aimed at an internal endpoint. The curl request is executed using popen and allows the attacker to inject commands via the Cookie field. A remote and unauthenticated attacker using this module is able to achieve code execution as www-data. This module affects the RV340, RV340w, RV345, and RV345P using firmware versions 1.0.03.20 and below.

tags | exploit, remote, web, cgi, code execution
systems | cisco
advisories | CVE-2021-1472, CVE-2021-1473
SHA-256 | d5c273af97dd2e97fb770967821e9b90847b04e11e1abb75510669721ee38b45
Cisco RV Authentication Bypass / Code Execution
Posted Apr 20, 2021
Authored by T Shiomitsu | Site iot-inspector.com

Cisco RV-series routers suffer from an authentication bypass vulnerability. The RV34X series are also affected by a command injection vulnerability in the sessionid cookie, when requesting the /upload endpoint. A combination of these issues would allow any person who is able to communicate with the web interface to run arbitrary system commands on the router as the www-data user. Vulnerable versions include RV16X/RV26X versions 1.0.01.02 and below and RV34X versions 1.0.03.20 and below.

tags | exploit, web, arbitrary, bypass
systems | cisco
advisories | CVE-2021-1472, CVE-2021-1473
SHA-256 | f3c8685d841186aca43bc22f8ed2b32e8512c7730129f2ed6fe20f360378fa91
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