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AUSCERT External Security Bulletin Redistribution
ESB-2021.1164
Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers
Authenticated Remote Code Execution Vulnerabilities
8 April 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: RV340 Dual WAN Gigabit VPN Router
RV340W Dual WAN Gigabit Wireless-AC VPN Router
RV345 Dual WAN Gigabit VPN Router
RV345P Dual WAN Gigabit POE VPN Router
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Increased Privileges -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-1415 CVE-2021-1414 CVE-2021-1413
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sb-rv34x-rce-8bfG2h6b
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Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers
Authenticated Remote Code Execution Vulnerabilities
Priority: Medium
Advisory ID: cisco-sa-sb-rv34x-rce-8bfG2h6b
First Published: 2021 April 7 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvw94030 CSCvw94062 CSCvw94083
CVE Names: CVE-2021-1413 CVE-2021-1414 CVE-2021-1415
CWEs: CWE-502
Summary
o Multiple vulnerabilities in the web-based management interface of Cisco
RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow
an authenticated, remote attacker to execute arbitrary code with elevated
privileges equivalent to the web service process on an affected device.
These vulnerabilities exist because HTTP requests are not properly
validated. An attacker could exploit these vulnerabilities by sending a
crafted HTTP request to the web-based management interface of an affected
device. A successful exploit could allow the attacker to remotely execute
arbitrary code on the device.
Cisco has 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-sb-rv34x-rce-8bfG2h6b
Affected Products
o Vulnerable Products
At the time of publication, these vulnerabilities affected the following
Cisco RV Series Small Business Routers if they were running a firmware
release earlier than Release 1.0.03.21:
RV340 Dual WAN Gigabit VPN Router
RV340W Dual WAN Gigabit Wireless-AC VPN Router
RV345 Dual WAN Gigabit VPN Router
RV345P Dual WAN Gigabit POE VPN Router
See the Details section in the bug ID(s) at the top of this advisory for
the most complete and current information.
Products Confirmed Not Vulnerable
Only products listed in the Vulnerable Products section of this advisory
are known to be affected by these vulnerabilities.
Cisco has confirmed that these vulnerabilities do not affect the following
Cisco RV Series Small Business Routers:
RV160 VPN Router
RV160W Wireless-AC VPN Router
RV260 VPN Router
RV260P VPN Router with POE
RV260W Wireless-AC VPN Router
Workarounds
o There are no workarounds that address these vulnerabilities.
Fixed Software
o When considering software upgrades , customers are advised to regularly
consult the advisories for Cisco products, which are available from the
Cisco Security Advisories page , to determine exposure and a complete
upgrade solution.
In all cases, customers should ensure that the devices to be upgraded
contain sufficient memory and confirm that current hardware and software
configurations will continue to be supported properly by the new release.
If the information is not clear, customers are advised to contact the Cisco
Technical Assistance Center (TAC) or their contracted maintenance
providers.
Fixed Releases
At the time of publication, Cisco Small Business RV Series Routers firmware
releases 1.0.03.21 and later contained the fix for these vulnerabilities.
See the Details section in the bug ID(s) at the top of this advisory for
the most complete and current information.
To download the software from the Software Center on Cisco.com , do the
following:
1. Click Browse all .
2. Choose Routers > Small Business Routers > Small Business RV Series
Routers .
3. Choose the appropriate router.
4. Choose Small Business Router Firmware .
5. Choose a release from the left pane of the product page.
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 T. Shiomitsu working with Trend Micro Zero Day
Initiative for reporting these vulnerabilities.
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-sb-rv34x-rce-8bfG2h6b
Revision History
o +----------+---------------------------+----------+--------+--------------+
| Version | Description | Section | Status | Date |
+----------+---------------------------+----------+--------+--------------+
| 1.0 | Initial public release. | - | Final | 2021-APR-07 |
+----------+---------------------------+----------+--------+--------------+
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