IBM Business Process Manager (BPM) can process XML messages, including messages from untrusted sources. Because of insufficient restriction of an XML parser, XML External Entity injection allows an authenticated remote attacker to send specially crafted XML messages and thus cause a denial of service by exhausting system resources or exfiltrate sensitive information.
DESCRIPTION: IBM Business Process Manager is vulnerable to a XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources.
CVSS Base Score: 7.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/130156 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L)
Affected Products and Versions
- IBM Business Process Manager V188.8.131.52 through V184.108.40.206
- IBM Business Process Manager V220.127.116.11 through V18.104.22.168
- IBM Business Process Manager V22.214.171.124 through V126.96.36.199
- IBM Business Process Manager V188.8.131.52
- IBM Business Process Manager V184.108.40.206 through V220.127.116.11 CF2
- IBM Business Process Manager V18.104.22.168 through V22.214.171.124 Cumulative Fix 2017.06
Install IBM BPM interim fix JR58188 as appropriate for your current version.
- IBM Business Process Manager Advanced
- IBM Business Process Manager Standard
- IBM Business Process Manager Express
As IBM Business Process Manager V7.5 is out of general support, customers with a support extension contract can contact IBM support to request the fix.
For IBM BPM V126.96.36.199 through V188.8.131.52 CF 2017.06
- Apply iFix JR58188
- Upgrade to minimal Refresh Pack 1, install Fix Pack 3 as required by iFix and then apply iFix JR58188
Workarounds and Mitigations
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The vulnerability was reported to IBM by Sergio Ortega Fernández (PwC España, BSS).
22 Sep 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.
15 June 2018