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AUSCERT External Security Bulletin Redistribution
ESB-2019.0217.4
Multiple vulnerabilities have been identified in Cisco Small
Business RV320 and RV325 Routers
29 March 2019
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco Small Business RV320 Routers
Cisco Small Business RV325 Routers
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Access Privileged Data -- Remote/Unauthenticated
Administrator Compromise -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2019-1653 CVE-2019-1652
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190123-rv-info
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190123-rv-inject
Comment: This bulletin contains two (2) Cisco Systems security advisories.
Revision History: March 29 2019: Cisco has provided mitigation information
pending a fix
March 28 2019: Cisco has updated information about the
initial fix being incomplete
January 29 2019: Cisco has noted that the vulnerabilities
are being actively exploited
January 24 2019: Initial Release
- --------------------------BEGIN INCLUDED TEXT--------------------
Cisco Small Business RV320 and RV325 Routers Information Disclosure Vulnerability
Priority: High
Advisory ID: cisco-sa-20190123-rv-info
First Published: 2019 January 23 16:00 GMT
Last Updated: 2019 March 28 21:06 GMT
Version 2.1: Interim
Workarounds: No workarounds available
Cisco Bug IDs: CSCvg85922
CVE-2019-1653
CVSS Score:
Base 7.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:X/RL:X/RC:X
Summary
* A vulnerability in the web-based management interface of Cisco Small
Business RV320 and RV325 Dual Gigabit WAN VPN Routers could allow an
unauthenticated, remote attacker to retrieve sensitive information.
The vulnerability is due to improper access controls for URLs. An attacker
could exploit this vulnerability by connecting to an affected device via
HTTP or HTTPS and requesting specific URLs. A successful exploit could
allow the attacker to download the router configuration or detailed
diagnostic information.
Update, March 27, 2019: The initial fix for this vulnerability was found to
be incomplete. Cisco is currently working on a complete fix. This document
will be updated once fixed code becomes available.
Firmware updates that address this vulnerability are not currently
available. There are no workarounds that address this vulnerability.
This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/
cisco-sa-20190123-rv-info
Affected Products
* Vulnerable Products
This vulnerability affects Cisco Small Business RV320 and RV325 Dual
Gigabit WAN VPN Routers running Firmware Releases 1.4.2.15 and later.
Products Confirmed Not Vulnerable
Only products listed in the Vulnerable Products section of this advisory
are known to be affected by this vulnerability.
Workarounds
* There are no workarounds that address this vulnerability.
If the Remote Management feature is enabled, Cisco recommends disabling it
to reduce exposure. The feature setting is under Firewall > General and is
disabled by default. This will disable the web-based management interface
on the WAN IP address, which is reachable via the WAN ports. The web-based
management interface will continue to be available on the LAN IP address,
which is reachable via the LAN ports.
Fixed Software
* Cisco has released free software updates that address the vulnerability
described in this advisory. Customers may only install and expect support
for software versions and feature sets for which they have purchased a
license. By installing, downloading, accessing, or otherwise using such
software upgrades, customers agree to follow the terms of the Cisco
software license:
https://www.cisco.com/c/en/us/products/end-user-license-agreement.html
Additionally, customers may only download software for which they have a
valid license, procured from Cisco directly, or through a Cisco authorized
reseller or partner. In most cases this will be a maintenance upgrade to
software that was previously purchased. Free security software updates do
not entitle customers to a new software license, additional software
feature sets, or major revision upgrades.
When considering software upgrades, 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 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.
Customers Without Service Contracts
Customers who purchase directly from Cisco but do not hold a Cisco service
contract and customers who make purchases through third-party vendors but
are unsuccessful in obtaining fixed software through their point of sale
should obtain upgrades by contacting the Cisco TAC:
https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html
Customers should have the product serial number available and be prepared
to provide the URL of this advisory as evidence of entitlement to a free
upgrade.
Fixed Releases
Cisco will fix this vulnerability in RV320 and RV325 Dual Gigabit WAN VPN
Routers Firmware Release 1.4.2.21 which is targeted to be available by the
middle of April 2019.
Customers can download the software from the Software Center on Cisco.com
by doing the following:
1. Click Browse all.
2. Navigate to Routers > Small Business Routers > Small Business RV Series
Routers > RV320 Dual Gigabit WAN VPN Router or RV325 Dual Gigabit WAN
VPN Router > Small Business Router Firmware.
3. Access releases by using the left pane of the RV320 Dual Gigabit WAN
VPN Router or RV325 Dual Gigabit WAN VPN Router page.
Exploitation and Public Announcements
* The Cisco Product Security Incident Response Team (PSIRT) is aware of the
existence of public exploit code, as well as active network scanning
targeting the vulnerability that is described in this advisory.
Source
* Cisco would like to thank RedTeam Pentesting GmbH for reporting this
vulnerability.
URL
* https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/
cisco-sa-20190123-rv-info
Revision History
*
+-----------------------------------------------------------------------------+
| Version | Description | Section | Status | Date |
|---------+--------------------+------------------+---------+-----------------|
| 2.1 | Added mitigation | Workarounds | Interim | 2019-March-28 |
| | recommendations. | | | |
|---------+--------------------+------------------+---------+-----------------|
| | Updated | Summary, | | |
| 2.0 | information about | Vulnerable | Interim | 2019-March-27 |
| | initial fix being | Products, and | | |
| | incomplete. | Fixed Releases | | |
|---------+--------------------+------------------+---------+-----------------|
| | Updated public | Exploitation and | | |
| 1.1 | exploit | Public | Final | 2019-January-25 |
| | information. | Announcements | | |
|---------+--------------------+------------------+---------+-----------------|
| 1.0 | Initial public | - | Final | 2019-January-23 |
| | release. | | | |
+-----------------------------------------------------------------------------+
- --------------------------------------------------------------------------------
Cisco Small Business RV320 and RV325 Routers Command Injection Vulnerability
Priority: High
Advisory ID: cisco-sa-20190123-rv-inject
First Published: 2019 January 23 16:00 GMT
Last Updated: 2019 March 28 21:06 GMT
Version 2.1: Interim
Workarounds: No workarounds available
Cisco Bug IDs: CSCvm78058
CVE-2019-1652
CVSS Score: Base 7.2
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:X
Summary
* A vulnerability in the web-based management interface of Cisco Small
Business RV320 and RV325 Dual Gigabit WAN VPN Routers could allow an
authenticated, remote attacker with administrative privileges on an
affected device to execute arbitrary commands.
The vulnerability is due to improper validation of user-supplied input. An
attacker could exploit this vulnerability by sending malicious HTTP POST
requests to the web-based management interface of an affected device. A
successful exploit could allow the attacker to execute arbitrary commands
on the underlying Linux shell as root.
Update, March 27, 2019: The initial fix for this vulnerability was found to
be incomplete. Cisco is currently working on a complete fix. This document
will be updated once fixed code becomes available.
Firmware updates that address this vulnerability are not currently
available. There are no workarounds that address this vulnerability.
This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/
cisco-sa-20190123-rv-inject
Affected Products
* Vulnerable Products
This vulnerability affects Cisco Small Business RV320 and RV325 Dual
Gigabit WAN VPN Routers running Firmware Releases 1.4.2.15 and later.
Products Confirmed Not Vulnerable
Only products listed in the Vulnerable Products section of this advisory
are known to be affected by this vulnerability.
Workarounds
* There are no workarounds that address this vulnerability.
If the Remote Management feature is enabled, Cisco recommends disabling it
to reduce exposure. The feature setting is under Firewall > General and is
disabled by default. This will disable the web-based management interface
on the WAN IP address, which is reachable via the WAN ports. The web-based
management interface will continue to be available on the LAN IP address,
which is reachable via the LAN ports.
Fixed Software
* Cisco has released free software updates that address the vulnerability
described in this advisory. Customers may only install and expect support
for software versions and feature sets for which they have purchased a
license. By installing, downloading, accessing, or otherwise using such
software upgrades, customers agree to follow the terms of the Cisco
software license:
https://www.cisco.com/c/en/us/products/end-user-license-agreement.html
Additionally, customers may only download software for which they have a
valid license, procured from Cisco directly, or through a Cisco authorized
reseller or partner. In most cases this will be a maintenance upgrade to
software that was previously purchased. Free security software updates do
not entitle customers to a new software license, additional software
feature sets, or major revision upgrades.
When considering software upgrades, 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 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.
Customers Without Service Contracts
Customers who purchase directly from Cisco but do not hold a Cisco service
contract and customers who make purchases through third-party vendors but
are unsuccessful in obtaining fixed software through their point of sale
should obtain upgrades by contacting the Cisco TAC:
https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html
Customers should have the product serial number available and be prepared
to provide the URL of this advisory as evidence of entitlement to a free
upgrade.
Fixed Releases
Cisco will fix this vulnerability in RV320 and RV325 Dual Gigabit WAN VPN
Routers Firmware Release 1.4.2.21 which is targeted to be available by the
middle of April 2019.
Customers can download the software from the Software Center on Cisco.com
by doing the following:
1. Click Browse all.
2. Navigate to Routers > Small Business Routers > Small Business RV Series
Routers > RV320 Dual Gigabit WAN VPN Router or RV325 Dual Gigabit WAN
VPN Router > Small Business Router Firmware.
3. Access releases by using the left pane of the RV320 Dual Gigabit WAN
VPN Router or RV325 Dual Gigabit WAN VPN Router page.
Exploitation and Public Announcements
* The Cisco Product Security Incident Response Team (PSIRT) is aware of the
existence of public exploit code, as well as active network scanning
targeting the vulnerability that is described in this advisory.
Source
* Cisco would like to thank RedTeam Pentesting GmbH for reporting this
vulnerability.
URL
* https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/
cisco-sa-20190123-rv-inject
Revision History
*
+-----------------------------------------------------------------------------+
| Version | Description | Section | Status | Date |
|---------+--------------------+------------------+---------+-----------------|
| 2.1 | Added mitigation | Workarounds | Interim | 2019-March-28 |
| | recommendations. | | | |
|---------+--------------------+------------------+---------+-----------------|
| | Updated | Summary, | | |
| 2.0 | information about | Vulnerable | Interim | 2019-March-27 |
| | initial fix being | Products, and | | |
| | incomplete. | Fixed Releases | | |
|---------+--------------------+------------------+---------+-----------------|
| | Updated public | Exploitation and | | |
| 1.1 | exploit | Public | Final | 2019-January-25 |
| | information. | Announcements | | |
|---------+--------------------+------------------+---------+-----------------|
| 1.0 | Initial public | - | Final | 2019-January-23 |
| | release. | | | |
+-----------------------------------------------------------------------------+
- --------------------------END INCLUDED TEXT--------------------
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