Security Bulletin: Malicious File Download vulnerability in IBM Business Process Manager (BPM) and WebSphere Lombardi Edition (WLE) - CVE-2016-9693
A comma separated file (CSV) download feature exists in IBM BPM and WLE and is available for anonymous users. An attacker can craft a URL that can trigger a download of attacker-supplied content under an attacker-supplied file name onto the victim's machine.
DESCRIPTION: IBM Business Process Manager has a file download capability that is vulnerable to a set of attacks. Ultimately, an attacker can cause an unauthenticated victim to download a malicious payload. An existing file type restriction can be bypassed so that the payload might be considered executable and cause damage on the victim's machine.
CVSS Base Score: 7.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/119517 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L)
Affected Products and Versions
- WebSphere Lombardi Edition V188.8.131.52 - V184.108.40.206
- IBM Business Process Manager Advanced V220.127.116.11 - V18.104.22.168
- IBM Business Process Manager Advanced V22.214.171.124 - V126.96.36.199
- IBM Business Process Manager Advanced V188.8.131.52 - V184.108.40.206 including cumulative fix 2016.12
Install IBM BPM or WLE interim fix JR57149 as appropriate for your current version.
- IBM Business Process Manager Advanced
- IBM Business Process Manager Standard
- IBM Business Process Manager Express
- WebSphere Lombardi Edition
As IBM Business Process Manager V7.5 and WebSphere Lombardi Edition are out of general support, customers with a support extension contract can contact IBM support to request the fix.
The fix disables the vulnerable URL and uses HTML5 features to trigger CSV download without server interaction.
For WebSphere Lombardi Edition 220.127.116.11 through 18.104.22.168
- Upgrade to minimal Refresh Pack 1, install Fix Pack 2 as required by iFix and then apply iFix JR57149
For IBM BPM V22.214.171.124 through V126.96.36.199
- Upgrade to minimal Refresh Pack 1, install Fix Pack 3 as required by iFix and then apply iFix JR57149
For IBM BPM V188.8.131.52 through V184.108.40.206
For IBM BPM V220.127.116.11
- Apply iFix JR57149
For IBM BPM V18.104.22.168 through V22.214.171.124 CF2
For IBM BPM V126.96.36.199 through V188.8.131.52 CF 2016.12
Workarounds and Mitigations
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The vulnerability was reported to IBM by Nalla Muthu S and Prasath K
24 Feb 2017: initial version published
*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.
According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
|Business Integration||IBM Business Process Manager Express||Security||Linux, Windows||8.5.7.CF201612, 8.5.7.CF201609, 8.5.7.CF201606, 8.5.7, 184.108.40.206, 220.127.116.11, 8.5.6, 8.5.5, 18.104.22.168, 22.214.171.124, 8.5, 126.96.36.199, 188.8.131.52, 184.108.40.206, 8.0.1, 8.0, 220.127.116.11, 18.104.22.168, 7.5.1, 22.214.171.124, 7.5|
|Business Integration||IBM Business Process Manager Standard||Security||AIX, Linux, Solaris, Windows||8.5.7.CF201612, 8.5.7.CF201609, 8.5.7.CF201606, 8.5.7, 126.96.36.199, 188.8.131.52, 8.5.6, 8.5.5, 184.108.40.206, 220.127.116.11, 8.5, 18.104.22.168, 22.214.171.124, 126.96.36.199, 8.0.1, 8.0, 188.8.131.52, 184.108.40.206, 7.5.1, 220.127.116.11, 7.5|
|Business Integration||WebSphere Lombardi Edition||Security||AIX, HP-UX, Linux, Solaris, Windows||18.104.22.168, 22.214.171.124, 126.96.36.199, 188.8.131.52, 184.108.40.206, 7.2|
More support for:
IBM Business Process Manager Advanced
Software version: 7.5, 220.127.116.11, 7.5.1, 18.104.22.168, 22.214.171.124, 8.0, 8.0.1, 126.96.36.199, 188.8.131.52, 184.108.40.206, 8.5, 220.127.116.11, 18.104.22.168, 8.5.5, 8.5.6, 22.214.171.124, 126.96.36.199, 8.5.7.CF201606, 8.5.7.CF201609, 8.5.7.CF201612, 8.5.7
Operating system(s): AIX, Linux, Solaris, Windows, z/OS
Reference #: 1998655
Modified date: 16 March 2017