Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2020.0034.2
Cisco Data Center Network Manager Path Traversal Vulnerabilities
16 January 2020
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco Data Center Network Manager (DCNM)
Publisher: Cisco Systems
Operating System: Windows
Linux variants
Virtualisation
Impact/Access: Access Confidential Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2019-15982 CVE-2019-15981 CVE-2019-15980
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200102-dcnm-path-trav
Revision History: January 16 2020: Vendor advises that proof-of-concept
exploit code is available.
January 3 2020: Initial Release
- --------------------------BEGIN INCLUDED TEXT--------------------
Cisco Data Center Network Manager Path Traversal Vulnerabilities
Priority: High
Advisory ID: cisco-sa-20200102-dcnm-path-trav
First Published: 2020 January 2 16:00 GMT
Last Updated: 2020 January 15 15:58 GMT
Version 1.1: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvq85957 CSCvq85972 CSCvq85998 CSCvq89422CSCvq89834
CSCvq89841 CSCvq89878 CSCvq89895CSCvr05463 CSCvr17970
CSCvr44896 CSCvr46508CSCvr79240 CSCvs16318 CSCvs16341
CSCvs16350
CVE-2019-15980
CVE-2019-15981
CVE-2019-15982
CWE-22
CVSS Score:
7.2 AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:X
Summary
o Multiple vulnerabilities in the REST and SOAP API endpoints and the
Application Framework feature of Cisco Data Center Network Manager (DCNM)
could allow an authenticated, remote attacker to conduct directory
traversal attacks on an affected device. To exploit these vulnerabilities,
an attacker would need administrative privileges on the DCNM application.
For more information about these vulnerabilities, see the Details section
of this advisory.
Note: The severity of these vulnerabilities is aggravated by the
vulnerabilities described in the Cisco Data Center Network Manager
Authentication Bypass Vulnerabilities advisory, published simultaneously
with this one.
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-20200102-dcnm-path-trav
Affected Products
o Vulnerable Products
These vulnerabilities affect Cisco DCNM software releases earlier than
Release 11.3(1) for Microsoft Windows, Linux, and virtual appliance
platforms.
Products Confirmed Not Vulnerable
Only products listed in the Vulnerable Products section of this advisory
are known to be affected by these vulnerabilities.
Details
o Three vulnerabilities in the REST and SOAP API endpoints and the
Application Framework feature of Cisco DCNM could allow an authenticated,
remote attacker to conduct directory traversal attacks on an affected
device.
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.
Details about the vulnerabilities are as follows.
Vulnerability Details
Cisco Data Center Network Manager REST API Path Traversal Vulnerability
A vulnerability in the REST API of Cisco DCNM could allow an authenticated,
remote attacker with administrative privileges to conduct directory
traversal attacks on an affected device.
The vulnerability is due to insufficient validation of user-supplied input
to the API. An attacker could exploit this vulnerability by sending a
crafted request to the API. A successful exploit could allow the attacker
to read, write, or execute arbitrary files in the system with full
administrative privileges.
CVE ID: CVE-2019-15980
Cisco Data Center Network Manager SOAP API Path Traversal Vulnerability
A vulnerability in the SOAP API of Cisco DCNM could allow an authenticated,
remote attacker with administrative privileges to conduct directory
traversal attacks on an affected device.
The vulnerability is due to insufficient validation of user-supplied input
to the API. An attacker could exploit this vulnerability by sending a
crafted request to the API. A successful exploit could allow the attacker
to read, write, or execute arbitrary files in the system with full
administrative privileges.
CVE ID: CVE-2019-15981
Cisco Data Center Network Manager Path Traversal Vulnerability
A vulnerability in the Application Framework feature of Cisco DCNM could
allow an authenticated, remote attacker with administrative privileges to
conduct directory traversal attacks on an affected device.
The vulnerability is due to insufficient validation of user-supplied input
to the Application Framework endpoint. An attacker could exploit this
vulnerability by sending a crafted request to the application. A successful
exploit could allow the attacker to read, write, or execute arbitrary files
in the system with full administrative privileges.
CVE ID: CVE-2019-15982
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 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 fixed these vulnerabilities in Cisco DCNM Software releases 11.3(1)
and later.
To download the software from the Software Center on Cisco.com, do the
following:
1. Click Browse All .
2. Choose Cloud and Systems Management > Data Center Infrastructure
Management > Data Center Network Manager .
3. Choose a release from the left pane of the Data Center Network Manager
page.
Exploitation and Public Announcements
o The Cisco Product Security Incident Response Team (PSIRT) is aware that
proof-of-concept exploit code is available for the vulnerabilities that are
described in this advisory.
Cisco PSIRT is not aware of any malicious use of the vulnerabilities that
are described in this advisory.
Source
o Cisco would like to thank Steven Seeley (mr_me) of Source Incite, working
with Trend Micro's Zero Day Initiative and iDefense, Accenture, 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-20200102-dcnm-path-trav
Revision History
o +---------+--------------------+---------------+--------+-----------------+
| Version | Description | Section | Status | Date |
+---------+--------------------+---------------+--------+-----------------+
| | Updated | Exploitation | | |
| 1.1 | information about | and Public | Final | 2020-January-15 |
| | the availability | Announcements | | |
| | of exploit code. | | | |
+---------+--------------------+---------------+--------+-----------------+
| 1.0 | Initial public | - | Final | 2020-January-02 |
| | release. | | | |
+---------+--------------------+---------------+--------+-----------------+
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
https://www.auscert.org.au/bulletins/
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967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=dDBQ
-----END PGP SIGNATURE-----