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AUSCERT External Security Bulletin Redistribution
ESB-2021.0143
Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers Management
Interface Command Injection Vulnerabilities
14 January 2021
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco Small Business routers
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Root Compromise -- Existing Account
Execute Arbitrary Code/Commands -- Existing Account
Resolution: None
CVE Names: CVE-2021-1150 CVE-2021-1149 CVE-2021-1148
CVE-2021-1147 CVE-2021-1146
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-command-inject-LBdQ2KRN
- --------------------------BEGIN INCLUDED TEXT--------------------
Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers Management
Interface Command Injection Vulnerabilities
Priority: High
Advisory ID: cisco-sa-rv-command-inject-LBdQ2KRN
First Published: 2021 January 13 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvv96723 CSCvv96725 CSCvv96726 CSCvv96727 CSCvw49751
CSCvw49774 CSCvw49777
CVE Names: CVE-2021-1146 CVE-2021-1147 CVE-2021-1148 CVE-2021-1149
CVE-2021-1150
CWEs: CWE-20
Summary
o Multiple vulnerabilities in the web-based management interface of Cisco
Small Business RV110W, RV130, RV130W, and RV215W Routers could allow an
authenticated, remote attacker to inject arbitrary commands that are
executed with root privileges.
The vulnerabilities are due to improper validation of user-supplied input
in the web-based management interface. An attacker could exploit these
vulnerabilities by sending crafted HTTP requests to a targeted device. A
successful exploit could allow the attacker to execute arbitrary code as
the root user on the underlying operating system. To exploit these
vulnerabilities, an attacker would need to have valid administrator
credentials on an affected device.
Cisco has not released software updates that address these vulnerabilities.
There are no workarounds that address these vulnerabilities.
This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-command-inject-LBdQ2KRN
Affected Products
o Vulnerable Products
These vulnerabilities affect the following Cisco Small Business routers:
RV110W Wireless-N VPN Firewall
RV130 VPN Router
RV130W Wireless-N Multifunction VPN Router
RV215W Wireless-N VPN Router
The web-based management interface of these devices is available through a
local LAN connection, which cannot be disabled, or through the WAN
connection if the remote management feature is enabled. By default, the
remote management feature is disabled for these devices.
Determine the Device Configuration
To determine whether the remote management feature is enabled for a device,
open the web-based management interface and choose Basic Settings > Remote
Management . If the Enable box is checked, remote management is enabled for
the device.
Products Confirmed Not Vulnerable
Only products listed in the Vulnerable Products section of this advisory
are known to be affected by these vulnerabilities
Workarounds
o There are no workarounds that address these vulnerabilities.
Fixed Software
o Cisco has not released and will not release software updates to address the
vulnerabilities described in this advisory. The Cisco Small Business
RV110W, RV130, RV130W, and RV215W Routers have entered the end-of-life
process. Customers are advised to refer to the end-of-life notices for
these products :
End-of-Sale and End-of-Life Announcement for the Cisco Small Business RV
Series Routers (selected models)
Customers are encouraged to migrate to the Cisco Small Business RV132W,
RV160, or RV160W Routers.
When considering a device migration, customers are advised to regularly
consult the advisories for Cisco products, which are available from the
Cisco Security Advisories and Alerts page , to determine exposure and a
complete upgrade solution.
In all cases, customers should ensure that the new device will be
sufficient for their network needs, that new devices contain sufficient
memory, and that current hardware and software configurations will continue
to be supported properly by the new product. If the information is not
clear, customers are advised to contact the Cisco Technical Assistance
Center (TAC) or their contracted maintenance providers.
Exploitation and Public Announcements
o The Cisco Product Security Incident Response Team (PSIRT) is not aware of
any public announcements or malicious use of the vulnerabilities that are
described in this advisory.
Source
o Cisco would like to thank the following people for reporting these
vulnerabilities:
Kai Cheng from Institute of Information Engineering, Chinese Academy of
Sciences for CVE-2021-1146, CVE-2021-1147, CVE-2021-1148, and
CVE-2021-1150.
KrCERT/CC Vulnerability Analysis Team for CVE-2021-1149.
Cisco Security Vulnerability Policy
o To learn about Cisco security vulnerability disclosure policies and
publications, see the Security Vulnerability Policy . This document also
contains instructions for obtaining fixed software and receiving security
vulnerability information from Cisco.
URL
o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-command-inject-LBdQ2KRN
Revision History
o +----------+---------------------------+----------+--------+--------------+
| Version | Description | Section | Status | Date |
+----------+---------------------------+----------+--------+--------------+
| 1.0 | Initial public release. | - | Final | 2021-JAN-13 |
+----------+---------------------------+----------+--------+--------------+
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