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cisco SD-WAN vManage SoftwareCisco SD-WAN vManage Software Unauthenticated Access to Messaging Services Vulnerability

Risk 70
Severity
7.5
AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

A vulnerability in the binding configuration of Cisco SD-WAN vManage Software containers could allow an unauthenticated, adjacent attacker who has access to the VPN0 logical network to also access the messaging service ports on an affected system. This vulnerability exists because the messaging server container ports on an affected system lack sufficient protection mechanisms. An attacker could exploit this vulnerability by connecting to the messaging service ports of the affected system. To exploit this vulnerability, the attacker must be able to send network traffic to interfaces within the VPN0 logical network. This network may be restricted to protect logical or physical adjacent networks, depending on device deployment configuration. A successful exploit could allow the attacker to view and inject messages into the messaging service, which can cause configuration changes or cause the system to reload. Cisco has released software updates that address this vulnerability. There are workarounds that address this vulnerability. This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vmanage-msg-serv-AqTup7vs

Remedy

<p>There is a workaround that addresses this vulnerability.</p> <p>Administrators can use access control lists (ACLs) to block TCP ports 4222, 6222, and 8222, which are used by Cisco SD-WAN vManage Software messaging services. They may be configured in the following ways depending on deployment:</p> <ul> <li>Configure ACLs on Cisco IOS devices. For information about preventing exploitation of Cisco IOS devices, see <a href="http://www.cisco.com/en/US/tech/tk648/tk361/technologies_white_paper09186a00801a1a55.shtml">Protecting Your Core: Infrastructure Protection Access Control Lists</a>.</li> <li>Configure ACLs at the firewall that protects Cisco SD-WAN vManage Software. For information about Cisco Adaptive Security Appliance (ASA) and Cisco Firepower Threat Defense (FTD) ACL configuration, see <a href="https://www.cisco.com/c/en/us/td/docs/security/asa/asa916/configuration/firewall/asa-916-firewall-config/access-acls.html">Cisco ASA Series Firewall CLI Configuration Guide: Access Control Lists</a>.</li> <li>Cisco Cloud Controllers ACLs (Inbound Rules allowed list) are managed through the Self-Service Portal. Customers will have to review their ACL configurations on the Self-Service Portal to ensure that they are correct. This does not involve updating the controller version. By default, Cisco-hosted devices are protected against the issue described in the advisory unless the customer has explicitly allowed access. For more information, see <a title="https://www.cisco.com/c/en/us/td/docs/routers/sdwan/knowledge-base/CloudOps/b-cisco-sdwan-cloudops/m-provisioning.html#concept_ocl_kgh_nlb" contenteditable="false" href="https://www.cisco.com/c/en/us/td/docs/routers/sdwan/knowledge-base/CloudOps/b-cisco-sdwan-cloudops/m-provisioning.html#concept_ocl_kgh_nlb">Cisco SD-WAN Cloud Hosted Controllers Provisioning</a>. </li> </ul> <p>While these workarounds have been deployed and were proven successful in a test environment, customers should determine the applicability and effectiveness in their own environment and under their own use conditions. Customers should be aware that any workaround or mitigation that is implemented may negatively impact the functionality or performance of their network based on intrinsic customer deployment scenarios and limitations. Customers should not deploy any workarounds or mitigations before first evaluating the applicability to their own environment and any impact to such environment.</p>
First published (updated )
Advisory
cisco-sa-vmanage-msg-serv-AqTup7vs

Cisco vManageCisco Software-Defined Application Visibility and Control on Cisco vManage Static Username and Password Vulnerability

Risk 27
Severity
5.3
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

A vulnerability in authentication mechanism of Cisco Software-Defined Application Visibility and Control (SD-AVC) on Cisco vManage could allow an unauthenticated, remote attacker to access the GUI of Cisco SD-AVC using a default static username and password combination. This vulnerability exists because the GUI is accessible on self-managed cloud installations or local server installations of Cisco vManage. An attacker could exploit this vulnerability by accessing the exposed GUI of Cisco SD-AVC. A successful exploit could allow the attacker to view managed device names, SD-AVC logs, and SD-AVC DNS server IP addresses. 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-sdavc-ZA5fpXX2

First published (updated )
Advisory
cisco-sa-sdavc-ZA5fpXX2

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