Security Bulletin: XML External Entity (XXE) injection vulnerability affects IBM Business Process Manager (CVE-2017-1527)

Summary

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.

Vulnerability Details

CVEID: CVE-2017-1527**
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&gt; 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 V7.5.0.0 through V7.5.1.2

- IBM Business Process Manager V8.0.0.0 through V8.0.1.3

- IBM Business Process Manager V8.5.0.0 through V8.5.0.2

- IBM Business Process Manager V8.5.5.0

- IBM Business Process Manager V8.5.6.0 through V8.5.6.0 CF2

- IBM Business Process Manager V8.5.7.0 through V8.5.7.0 Cumulative Fix 2017.06

Remediation/Fixes

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 V8.5.7.0 through V8.5.7.0 CF 2017.06

• Install CF 2017.06 and then apply iFix JR58188
  For IBM BPM V8.5.6.0 through V8.5.6.0 CF2
• Install CF2 as required by iFix and then apply iFix JR58188
  For IBM BPM V8.5.5.0
• Apply iFix JR58188
  For IBM BPM V8.5.0.0 through V8.5.0.2
• Install Fix Pack 2 as required by iFix and then apply iFix JR58188
  For IBM BPM V8.0.0.0 through V8.0.1.3
• Upgrade to minimal Refresh Pack 1, install Fix Pack 3 as required by iFix and then apply iFix JR58188
  For IBM BPM V7.5.0.0 through V7.5.1.2
• Upgrade to minimal Refresh Pack 1, install Fix Pack 2 as required by iFix and then apply iFix JR58188

Workarounds and Mitigations

None