Cisco Small Business Routers RV016, RV042, RV042G, and RV082 Information Disclosure Vulnerability

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Updated:May 2, 2020
Document ID:1588455435795108

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Cisco Security Advisory

Cisco Small Business Routers RV016, RV042, RV042G, and RV082 Information Disclosure Vulnerability

Medium
Advisory ID:
cisco-sa-20191120-sbr-rv-infodis
First Published:
2019 November 20 16:00 GMT
Version 1.0:
Final
Workarounds:
No workarounds available
Cisco Bug IDs:
CSCvq76840
CVE-2019-15990
CWE-285
CVSS Score:
Base 5.3Click Icon to Copy Verbose Score
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:X/RL:X/RC:X
CVE-2019-15990
CWE-285

Summary

  • A vulnerability in the web-based management interface of certain Cisco Small Business RV Series Routers could allow an unauthenticated, remote attacker to view information displayed in the web-based management interface.

    The vulnerability is due to improper authorization of HTTP requests. An attacker could exploit this vulnerability by sending crafted HTTP requests to the web-based management interface of an affected device. A successful exploit could allow the attacker to view information displayed in the web-based management interface without authentication.

    Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

    This advisory is available at the following link:
    https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191120-sbr-rv-infodis

Affected Products

  • Vulnerable Products

    At the time of publication, this vulnerability affected the following Cisco Small Business RV Series Routers if they were running a firmware release earlier than Release 4.2.3.10:

    • RV016 Multi-WAN VPN Router1
    • RV042 Dual WAN VPN Router
    • RV042G Dual Gigabit WAN VPN Router
    • RV082 Dual WAN VPN Router1
    1. The Cisco RV016 Multi-WAN VPN Router and Cisco RV082 Dual WAN VPN Router have reached the end of software maintenance.

    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 this vulnerability.

    Cisco has confirmed that this vulnerability does not affect the following Cisco products:

    • RV320 Dual Gigabit WAN VPN Router
    • RV325 Dual Gigabit WAN VPN Router

Workarounds

  • There are no workarounds that address this vulnerability.

    However, administrators can reduce the attack surface by disabling the Remote Management feature if there is no operational requirement to use it. Note that the feature is disabled by default.

    Administrators can disable the Remote Management feature by choosing Firewall > General and unchecking the Remote Management check box. Disabling the feature will disable the web-based management interface on the WAN IP address, which is reachable through the WAN ports. The interface will still be available on the LAN IP address, which is reachable through the LAN ports.

Fixed Software

  • 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.

    Fixed Releases

    At the time of publication, Cisco RV042 Dual WAN VPN Router and Cisco RV042G Dual Gigabit WAN VPN Router firmware releases 4.2.3.10 and later contained the fix for this vulnerability.

    See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information.

Exploitation and Public Announcements

  • The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.

Source

  • This vulnerability was found during internal security testing.

Cisco Security Vulnerability Policy

  • 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.

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Revision History

  • Version Description Section Status Date
    1.0 Initial public release. — Final 2019-November-20
    Show Less

Cisco Security Vulnerability Policy

  • 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.

Subscribe to Cisco Security Notifications

Related to This Advisory