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AUSCERT External Security Bulletin Redistribution
ESB-2018.1375.3
Cisco Prime File Upload Servlet Path Traversal and Remote
Code Execution Vulnerability
30 October 2018
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco Prime Data Center Network Manager (DCNM)
Cisco Prime Infrastructure (PI)
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Create Arbitrary Files -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2018-0285
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180502-prime-upload
Revision History: October 30 2018: Clarified vulnerable releases for Cisco
Prime Infrastructure
May 8 2018: Source article updated their source.
May 4 2018: Initial Release
- --------------------------BEGIN INCLUDED TEXT--------------------
Cisco Prime File Upload Servlet Path Traversal and Remote Code Execution
Vulnerability
Critical
Advisory ID: cisco-sa-20180502-prime-upload
First Published: 2018 May 2 16:00 GMT
Last Updated: 2018 October 29 15:38 GMT
Version 1.2: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvf32411
CSCvf81727
CVE-2018-0258
CWE-22
CVSS Score: Base 9.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:X
Summary
o A vulnerability in the Cisco Prime File Upload servlet affecting multiple
Cisco products could allow a remote attacker to upload arbitrary files to
any directory of a vulnerable device and execute those files.
For more information about this vulnerability per Cisco product, see the
Details section of this security advisory.
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://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180502-prime-upload
Affected Products
o Vulnerable Products
This vulnerability affects the following products:
o Cisco Prime Data Center Network Manager (DCNM) - Version 10.0 and later
o Cisco Prime Infrastructure (PI) - Version 3.2 and earlier
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
products:
o Cisco Evolved Programmable Network Manager
o Cisco Prime Access Registrar
o Cisco Prime Active Catalog
o Cisco Prime Cable Provisioning
o Cisco Prime Central for Service Providers
o Cisco Prime Collaboration Assurance
o Cisco Prime Collaboration Provisioning
o Cisco Prime Home
o Cisco Prime IP Express
o Cisco Prime LAN Management Solution
o Cisco Prime Network
o Cisco Prime Network Analysis Module
o Cisco Prime Network Registrar
o Cisco Prime Optical for Service Providers
o Cisco Prime Order Management
o Cisco Prime Performance Manager
o Cisco Prime Provisioning for Service Providers
o Cisco Prime Service Catalog
o Cisco Prime Unified Service Monitor
Details
o Details about the Cisco Prime File Upload servlet vulnerability per
affected product are as follows.
Cisco Prime Data Center Network Manager Upload Servlet Path Traversal and
Remote Code Execution Vulnerability
A vulnerability in the File Upload servlet of Cisco Prime Data Center
Network Manager (DCNM) could allow an unauthenticated, remote attacker to
upload arbitrary files to any directory of a vulnerable device and then
execute those files.
The vulnerability is due to improper input validation of the parameters in
the HTTP request and a processing error in the role-based access control
(RBAC) of URLs. An attacker could exploit this vulnerability by uploading a
crafted Java Server Pages (JSP) file to a specific folder using path
traversal techniques and then executing that file remotely. An exploit
could allow the attacker to execute arbitrary commands on the affected
device with the privileges of the SYSTEM user.
The Common Vulnerability Scoring System (CVSS) score for this vulnerability
is: Base 9.8
The Security Impact Rating (SIR) for this vulnerability is: Critical
The Cisco bug ID for this vulnerability is: CSCvf32411
Cisco Prime Infrastructure Upload Servlet Path Traversal and Remote Code
Execution Vulnerability
A vulnerability in the File Upload servlet of Cisco Prime Infrastructure
(PI) could allow an authenticated, remote attacker to upload arbitrary
files to any directory of a vulnerable device and then execute those files.
The vulnerability is due to improper input validation of the parameters in
the HTTP request. An attacker could exploit this vulnerability by logging
in to the affected application as an unprivileged user, uploading a crafted
Java Server Pages (JSP) file to a specific folder using path traversal
techniques and then executing that file remotely. An exploit could allow
the attacker to execute arbitrary commands on the affected device with the
privileges of the SYSTEM user.
The CVSS score for this vulnerability is: Base 8.8
The SIR for this vulnerability is: High
The Cisco bug ID for this vulnerability is: CSCvf81727
Workarounds
o There are no workarounds that address this vulnerability.
Fixed Software
o 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
In the following tables, the left column lists major releases of Cisco
software. The right column indicates whether a major release is affected by
the vulnerability described in this advisory and the first minor release
that includes the fix for this vulnerability.
Data Center Network Manager (DCNM)
Cisco DCNM Major Release First Fixed Release for This Vulnerability
Prior to 10.0 Not vulnerable
10.0 Affected; migrate to 10.3(1)
10.1 Affected; migrate to 10.3(1)
10.2 Affected; migrate to 10.3(1)
10.3 Not vulnerable
Prime Infrastructure (PI)
Cisco PI Major Release First Fixed Release for This Vulnerability
Prior to 3.1 Affected; migrate to 3.1.7 Update 01
3.1 3.1.7 Update 01
3.2 3.2.1
3.3 Not vulnerable
3.4 Not vulnerable
2.2-FIPS Affected; migrate to 3.2-FIPS
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 vulnerability that is
described in this advisory.
Source
o Cisco would like to thank Tenable, Inc. for reporting this vulnerability.
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.
Action Links for This Advisory
o Snort Rule 46492
Snort Rule 46493
Snort Rule 46494
URL
o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180502-prime-upload
Revision History
o +---------+-----------------------+------------+--------+-----------------+
| Version | Description | Section | Status | Date |
+---------+-----------------------+------------+--------+-----------------+
| | Clarified vulnerable | Vulnerable | | |
| 1.2 | releases for Cisco | Products | Final | 2018-October-29 |
| | Prime Infrastructure. | | | |
+---------+-----------------------+------------+--------+-----------------+
| 1.1 | Corrected the source. | Source | Final | 2018-May-07 |
+---------+-----------------------+------------+--------+-----------------+
| 1.0 | Initial public | - | Final | 2018-May-02 |
| | release. | | | |
+---------+-----------------------+------------+--------+-----------------+
Legal Disclaimer
o THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND
OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT
OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES
THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.
A standalone copy or paraphrase of the text of this document that omits the
distribution URL is an uncontrolled copy and may lack important information
or contain factual errors. The information in this document is intended for
end users of Cisco products.
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