Security Bulletin: A vulnerability in Apache Solr affects IBM InfoSphere Information Server

Summary

A vulnerability in Apache Solr was addressed by IBM InfoSphere Information Server.

Vulnerability Details

CVEID: CVE-2017-12629 DESCRIPTION: Apache Lucene could allow a remote attacker to execute arbitrary code on the system, caused by improper handling of XML External Entity (XXE) entries when parsing to RunExecutableListener class. By using a Config API add-listener command to reach the RunExecutableListener class, an attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base Score: 9.8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/133524 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

The following product, running on all supported platforms, is affected:
IBM InfoSphere Information Server Data Quality Exception Console: version 11.5, 11.7
IBM InfoSphere Information Analyzer: version 11.5, 11.7
IBM InfoSphere Information Server on Cloud version 11.5, 11.7

Remediation/Fixes

For version 11.7, a fix is available by installing Information Server 11.7.0.1 Service Pack 1 or later.
Alternatively, the Mitigation steps may be done.

Workarounds and Mitigations

The following steps should be done:
a) Fix the Solr server start script:

• On UNIX:
  1. Edit /opt/IBM/InformationServer/shared-open-source/solr/start-solr.sh
  2. In the third line from the end of the file, change
     $EXEC “$ROOTDIR/solr/install/bin/solr” $SOLR_START_CMD -cloud -s “$ROOTDIR/solr/data/$i” -p $SCPI -z $HOSTNAME:$ZKPI
     to
     $EXEC “$ROOTDIR/solr/install/bin/solr” $SOLR_START_CMD -cloud -s “$ROOTDIR/solr/data/$i” -p $SCPI -z $HOSTNAME:$ZKPI -Ddisable.configEdit=true
• On Windows:
  1. Edit C:\IBM\InformationServer\shared-open-source\solr\start-solr.bat
  2. In the third line from the end of the file, change
     “%SOLR_ROOT_DIRECTORY%install\bin\solr.cmd” start -cloud -s “%SOLR_ROOT_DIRECTORY:”=%data\!NODEID!" -p !SCPI! -z %HOSTNAME%:!ZKPI! !FOREGROUND!
     to
     “%SOLR_ROOT_DIRECTORY%install\bin\solr.cmd” start -cloud -s “%SOLR_ROOT_DIRECTORY:”=%data\!NODEID!" -p !SCPI! -z %HOSTNAME%:!ZKPI! !FOREGROUND! -Ddisable.configEdit=true
     b) Follow the instructions in Step 2 of Technote to restart the InfoSrvZookeeper, InfoSrvKafka and InfoSrvSolrCloud services.