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AUSCERT External Security Bulletin Redistribution
ESB-2021.1529
Cisco SD-WAN vManage Software Vulnerabilities
6 May 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco SD-WAN vManage
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Administrator Compromise -- Remote/Unauthenticated
Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Access Confidential Data -- Remote/Unauthenticated
Reduced Security -- Remote/Unauthenticated
Unauthorised Access -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-1508 CVE-2021-1506 CVE-2021-1505
CVE-2021-1468 CVE-2021-1275
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sd-wan-vmanage-4TbynnhZ
Comment: Cisco has marked this advisory as critical.
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Cisco SD-WAN vManage Software Vulnerabilities
Priority: Critical
Advisory ID: cisco-sa-sd-wan-vmanage-4TbynnhZ
First Published: 2021 May 5 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvu28360 CSCvu28390 CSCvu28402 CSCvu28454 CSCvv67264
CVE Names: CVE-2021-1275 CVE-2021-1468 CVE-2021-1505 CVE-2021-1506
CVE-2021-1508
CWEs: CWE-20 CWE-862 CWE-863
Summary
o Multiple vulnerabilities in Cisco SD-WAN vManage Software could allow an
unauthenticated, remote attacker to execute arbitrary code or gain access
to sensitive information, or allow an authenticated, local attacker to gain
escalated privileges or gain unauthorized access to the application.
For more information about these vulnerabilities, see the Details section
of this advisory.
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-sd-wan-vmanage-4TbynnhZ
Affected Products
o Vulnerable Products
These vulnerabilities affect Cisco devices if they are running a vulnerable
release of Cisco SD-WAN vManage Software.
For information about which Cisco software releases are vulnerable, see the
Fixed Software section of this advisory.
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 products:
IOS XE SD-WAN Software
SD-WAN cEdge Routers
SD-WAN vBond Orchestrator Software
SD-WAN vEdge Routers
SD-WAN vSmart Controller Software
Details
o The vulnerabilities are not dependent on one another. Exploitation of one
of the vulnerabilities is not required to exploit another vulnerability. In
addition, a software release that is affected by one of the vulnerabilities
may not be affected by the other vulnerabilities.
Several of the vulnerabilities below only impact Cisco SD-WAN vManage
Software that is operating in a cluster. Customers can verify whether the
software is operating in cluster mode by checking the Cisco SD-WAN vManage
web-based management interface Administration > Cluster Management view.
Customers should also refer to the Cisco SD-WAN Getting Started Guide
chapter on Cluster Management .
Details about the vulnerabilities are as follows:
CVE-2021-1468: Cisco SD-WAN vManage Cluster Mode Unauthorized Message
Processing Vulnerability
A vulnerability in a messaging service of Cisco SD-WAN vManage Software
when operating in cluster mode could allow an unauthenticated, remote
attacker to send unauthorized messages to the vulnerable application.
This vulnerability is due to improper authentication checks on
user-supplied input to an application messaging service. An attacker could
exploit this vulnerability by submitting crafted input to the service. A
successful exploit could allow the attacker to call privileged actions
within the affected system, including creating new administrative level
user accounts.
Cisco has released software updates that address this vulnerability. There
are no workarounds that address this vulnerability.
Bug ID(s): CSCvu28454
CVE ID: CVE-2021-1468
Security Impact Rating (SIR): Critical
CVSS Base Score: 9.8
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVE-2021-1505: Cisco SD-WAN vManage Cluster Mode Privilege Escalation
Vulnerability
A vulnerability in the web-based management interface of Cisco SD-WAN
vManage Software when operating in cluster mode could allow an
authenticated, remote attacker to bypass authorization checking and gain
elevated privileges within an affected system.
This vulnerability exists because the affected software does not perform
authorization checks on certain operations. An attacker could exploit this
vulnerability by sending crafted requests to the affected system. A
successful exploit could allow the attacker to bypass authorization checks
and gain elevated privileges within the affected system.
Cisco has released software updates that address this vulnerability. There
are no workarounds that address this vulnerability.
Bug ID(s): CSCvu28390
CVE ID: CVE-2021-1505
Security Impact Rating (SIR): Critical
CVSS Base Score: 9.1
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CVE-2021-1508: Cisco SD-WAN vManage Cluster Mode Unauthorized Access
Vulnerability
A vulnerability in the web-based management interface of Cisco SD-WAN
vManage Software when operating in cluster mode could allow an
authenticated, remote attacker to bypass authorization checking and make
application modifications that could allow the attacker to gain elevated
privileges within an affected system.
This vulnerability exists because the affected software does not perform
authorization checks on certain operations. An attacker could exploit this
vulnerability by sending crafted requests to the affected system. A
successful exploit could allow the attacker to bypass authorization checks
and gain elevated privileges within the affected system.
Cisco has released software updates that address this vulnerability. There
are no workarounds that address this vulnerability.
Bug ID(s): CSCvu28360
CVE ID: CVE-2021-1508
Security Impact Rating (SIR): High
CVSS Base Score: 8.1
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CVE-2021-1275: Cisco SD-WAN vManage Denial of Service Vulnerability
A vulnerability in an API of Cisco SD-WAN vManage Software could allow an
unauthenticated, remote attacker to cause a DoS condition on an affected
system.
The vulnerability is due to insufficient handling of API requests to the
affected system. An attacker could exploit this vulnerability by sending a
large amount of API requests to the affected system. A successful exploit
could allow the attacker to cause a DoS condition on the affected system.
Cisco has released software updates that address this vulnerability. There
are no workarounds that address this vulnerability.
Bug ID(s): CSCvv67264
CVE ID: CVE-2021-1275
Security Impact Rating (SIR): High
CVSS Base Score: 7.5
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVE-2021-1506: Cisco SD-WAN vManage Cluster Mode Unauthorized Services
Access Vulnerability
A vulnerability in a service of Cisco SD-WAN vManage Software when
operating in cluster mode could allow an authenticated, remote attacker to
gain unauthorized access to services within an affected system.
This vulnerability exists because the affected software does not perform
authorization checks on service access. An attacker could exploit this
vulnerability by sending crafted requests to the affected system. A
successful exploit could allow the attacker to bypass authorization checks
and gain unauthorized access to services within the affected system.
Cisco has released software updates that address this vulnerability. There
are no workarounds that address this vulnerability.
Bug ID(s): CSCvu28402
CVE ID: CVE-2021-1506
Security Impact Rating (SIR): High
CVSS Base Score: 7.2
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Workarounds
o There are no workarounds that address these vulnerabilities.
Fixed Software
o Cisco has released free software updates that address the vulnerabilities
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 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
Customers are advised to upgrade to an appropriate fixed software release
as indicated in the following table(s). To ensure a complete upgrade
solution, consider that this advisory is part of a collection that includes
the following advisories:
cisco-sa-sd-wan-vmanage-4TbynnhZ : Cisco SD-WAN vManage Software
Vulnerabilities
cisco-sa-sdw-auth-bypass-65aYqcS2 : Cisco SD-WAN vManage Software
Authentication Bypass Vulnerability
cisco-sa-sdwan-dos-Ckn5cVqW : Cisco SD-WAN Software vDaemon Denial of
Service Vulnerability
cisco-sa-sdwan-buffover-MWGucjtO : Cisco SD-WAN vEdge Software Buffer
Overflow Vulnerabilities
Cisco SD-WAN First Fixed Release First Fixed Release for all
vManage for All Defects in Vulnerabilities Described in the
Software This Advisory Collection of Advisories
Release
18.4 and Migrate to a fixed Migrate to a fixed release.
earlier release.
19.2 Migrate to a fixed Migrate to a fixed release.
release.
20.1 Migrate to a fixed Migrate to a fixed release.
release.
20.3 20.3.3 Migrate to a fixed release.
20.4 20.4.1 20.4.1
20.5 20.5.1 20.5.1
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 CVE-2021-1275: This vulnerability was found during the resolution of a
Cisco TAC support case.
CVE-2021-1468 and CVE-2021-1506: These vulnerabilities were found by N.S.
of Cisco during internal security testing.
CVE-2021-1505 and CVE-2021-1508: These vulnerabilities were found by Alex
Lumsden of Cisco during internal security testing.
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-sd-wan-vmanage-4TbynnhZ
Revision History
o +----------+---------------------------+----------+--------+--------------+
| Version | Description | Section | Status | Date |
+----------+---------------------------+----------+--------+--------------+
| 1.0 | Initial public release. | - | Final | 2021-MAY-05 |
+----------+---------------------------+----------+--------+--------------+
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