Qlik’s Response to Apache Log4j Vulnerabilities: CVE-2021-44228 / CVE-2021-45046 / CVE-2021-45105 / CVE-2021-44832

[Katie_Davis]

Latest update as of Feb. 15, 2022. All current threats have been addressed. 

Further updates will be made as new information becomes available. 

[Katie_Davis]

Qlik has been diligently reviewing and testing our product suite since we’ve become aware of the Apache Log4j vulnerability mid-December.  We want to ensure Qlik users that your security is our upmost priority. We have addressed multiple vulnerabilities through a series of product patches for supported affected versions and we recommend you update to the most recent releases available, shown in the chart below.

Log4j versions before v2.16 presented the highest threat and all exposed Qlik products have provided patches with at least v2.16 and will all be updated to v2.17.1 or later under the regular release schedule as we are not vulnerable to the CVEs related to 2.17.0

We’d like to direct you to our FAQ document to review should you have any further questions, and we encourage you to comment with any additional questions.

The following products are not affected:

• Qlik Sense Enterprise, all supported versions
• Qlik Sense Enterprise SaaS
• QlikView, all supported versions
• Nprinting, all supported versions
• Qlik Alerting, all supported versions
• Qlik Web Connectors, all supported versions
• Qlik RepliWeb and ARC, all supported versions
• AIS, including ARC, all supported version
• Nodegraph
• AutoML
• Qlik Catalog supported versions before May 2021 are not affected
• Blendr
• Qlik Data Transfer
• Salesforce and SAP Connectors are not affected
• Qlik Forts
• ODBC Connector Package
• REST Connectors
• Qlik Sense Business

The following products are under review:

• Attunity Visibility
  
  

The following products are affected. Qlik has provided patches linked here; customers are advised to install the patches at their earliest convenience.  

Downloads can be accessed by visiting our new Downloads page  on Qlik Community when signed in with your Qlik ID , then selecting the product then the latest release.

Affected Product Version	CVE-2021-44228	CVE-2021-45046	CVE-2021-45105	CVE-2021-44832	Recommended Action	Log4J Version included in patch
Compose 2021.8	Vulnerable, solved by patch	Vulnerable, solved by patch	Not vulnerable	Not vulnerable	Install 2021.8 SR01	Up to 2.16.0
Compose 2021.5	Vulnerable, solved by patch	Vulnerable, solved by patch	Not vulnerable	Not vulnerable	Install 2021.5 SR01	Up to 2.16.0
Compose 2021.2	Vulnerable, solved by patch	Vulnerable, solved by patch	Not vulnerable	Not vulnerable	Install 2021.2 SR01	Up to 2.16.0
C4DW 7.0	Vulnerable, solved by patch	Vulnerable, solved by patch	Not vulnerable	Not vulnerable	Install 7.0 2021 SR04	Up to 2.16.0
C4DW 6.6.1	Vulnerable, solved by patch	Vulnerable, solved by patch	Not vulnerable	Not vulnerable	Install 6.6.1 SR03	Up to 2.16.0
C4DW 6.6	Vulnerable, solved by patch	Vulnerable, solved by patch	Not vulnerable	Not vulnerable	Install 6.6.0 SR06	Up to 2.16.0
C4DL 6.6	Vulnerable, solved by patch	Vulnerable, solved by patch	Not vulnerable	Not vulnerable	Install 6.6.0 SR09	Up to 2.16.0
Replicate 2021.11	Vulnerable, solved by patch	Vulnerable, solved by patch	Not vulnerable	Not vulnerable	Install version published 22 Dec 2021	Up to 2.16.0
Replicate 2021.5	Vulnerable, solved by patch	Vulnerable, solved by patch	Not vulnerable	Not vulnerable	Install 2021.5 SR 05	Up to 2.16.0
Replicate 7.0	Vulnerable, solved by patch	Vulnerable, solved by patch	Not vulnerable	Not vulnerable	Install 7.0.0 SR05	Up to 2.16.0
Replicate 6.6	Vulnerable, solved by patch	Vulnerable, solved by patch	Not vulnerable	Not vulnerable	Install 6.6.0 SR06	Up to 2.16.0
QEM 2021.11	Vulnerable, solved by patch	Vulnerable, solved by patch	Not vulnerable	Not vulnerable	Install version published 22 Dec 2021	Up to 2.16.0
QEM 2021.5	Vulnerable, solved by patch	Vulnerable, solved by patch	Not vulnerable	Not vulnerable	Install 2021.5 SR05	Up to 2.16.0
QEM 7.0	Vulnerable, solved by patch	Vulnerable, solved by patch	Not vulnerable	Not vulnerable	Install 7.0.0 SR05	Up to 2.16.0
QEM 6.6	Vulnerable, solved by patch	Vulnerable, solved by patch	Not vulnerable	Not vulnerable	Install 6.6.0 SR03	Up to 2.16.0
Catalog 4.12.0, 4.12.1	Vulnerable, solved by patch	Vulnerable, solved by patch	Vulnerable, solved by patch	Not Vulnerable, JDBC Appender not configured	Install 4.12.2	Up to 2.17.0
Catalog 4.11.0, 4.11.1	Vulnerable, solved by patch	Vulnerable, solved by patch	Vulnerable, solved by patch	Not Vulnerable, JDBC Appender not configured	Install 4.11.2	Up to 2.17.0
Catalog 4.10.0, 4.10.1, 4.10.2	Vulnerable, solved by patch	Vulnerable, solved by patch	Vulnerable, solved by patch	Not Vulnerable, JDBC Appender not configured	Install 4.10.3	Up to 2.17.0
GeoAnalytics Server - 4.32.3 and 4.23.4	Vulnerable, solved by patch	Vulnerable, solved by patch	Vulnerable, solved by patch	Vulnerable, solved by patch	Install 4.32.5	Up to 2.17.1
GeoAnalytics Server - 4.27.3 - 4.19.1	Vulnerable, solved by patch	Vulnerable, solved by patch	Vulnerable, solved by patch	Vulnerable, solved by patch	Install 4.27.4 – 4.19.2	Up to 2.17.1
GeoAnalytics Plus - 5.31.1 and 5.31.2	Vulnerable, solved by patch	Vulnerable, solved by patch	Vulnerable, solved by patch	Vulnerable, solved by patch	Install 5.31.3	Up to 2.17.1
GeoAnalytics Plus - 5.30.1-5.29.4	Vulnerable, solved by patch	Vulnerable, solved by patch	Vulnerable, solved by patch	Vulnerable, solved by patch	Install 5.30.2 – 5.29.5	Up to 2.17.1
GeoAnalytics Plus - 5.28.2-5.27.5	Vulnerable, solved by patch	Vulnerable, solved by patch	Vulnerable, solved by patch	Vulnerable, solved by patch	Install 5.28.3 – 5.27.6	Up to 2.17.1
GeoAnalytics Plus - 5.26.5	Vulnerable, solved by patch	Vulnerable, solved by patch	Vulnerable, solved by patch	Vulnerable, solved by patch	Install 5.26.6	Up to 2.17.1

Please keep in mind that Qlik's on-premise (or client-managed) data integration products are intended to only be accessed on an internal network; therefore any potential impacts of CVE-2021-44228 should be mitigated by your internal network and access controls.

For information on supported versions, please visit the Product Support Lifecycle

Please subscribe to our Support Updates blog for continued updates. 

Thank you for choosing Qlik, 

Qlik Global Support

Change Log:

• Post Created Dec. 11, 2021
• Dec. 11, 2021 1:30pm EST: Updated article to specify which products were confirmed as not affected or still under evaluation
• Dec. 12, 2021 2:00pm EST: Updated to state that QCS was not affected; added additional products as under evaluation

• Dec. 13, 2021 12:15pm EST: Updated to specify which versions applied to not affected products; added changelog.

• Dec. 13, 2021 3:15pm EST: Updated to specify which versions are affected with steps to mitigate and which products we are still evaluating.

• Dec. 13, 2021 5:10pm EST: Added GeoAnalytics Plus mitigation, and expanded "not affected" section to further products. 5:55pm EST added AIS to not affected list.

• Dec. 14, 2021 2:10pm EST: Added Qlik Catalog, Blendr, and Qlik Data Transfer to reviewed list. Added mitigation steps for Qlik Catalog.

• Dec. 14, 2021 2:45pm EST: Added JDBC, Salesforce and SAP Connectors to the not affected list.
• Dec. 15, 2021 3:05pm EST: Added Patch schedule, and the following items to NOT affected: Qlik Forts, ODBC Connector, REST connectors, and Qlik Sense Business. 

• Dec. 16, 2021 1:15pm EST: Updated Catalog version details in Patch schedule. 

• Dec. 17, 2021: 3:25pm EST: Mitigation steps for Compose, Replicate, and QEM were updated
• Dec. 20, 2021 9:00am EST: Updated link to Catalog patches.

• Dec. 20, 2021 1:15pm EST: Updated top post for status of CVE-2021-45105 and language around Catalog to be 'Hotfix' with full version patches in early Jan. 2022 in published.

• Dec. 21, 2021 3:45pm EST: Updated Catalog to be 'Service Releases' with full version 2.17 published to downloads page. 

• Dec. 22, 2021 8:30am EST: Compose 2021.8 released on Qlik Download pages
• Dec. 28, 2021 10:40am EST: Compose 2021.2 -- SR1, Replicate 2021.5 -- SR5, and QEM 2021.5 -- SR5 released on Qlik Download pages and marked as published. 12:00pm combined mitigation links with Patch release schedule chart.
• Dec. 30, 2021 11:00am EST: Patch Release published for C4DW 7.0 - 2021 -- SR4
• January 6, 2021 9:30am EST: Updated expected time for GeoAnalytics patches to "Early January".
• January 11, 2022 7:00am EST: Updated to reflect all GeoAnalytics patches as published.
• January 14, 2022 2:00pm EST: Marked the following patches as published: C4DW 6.6.0 -- SR06,C4DW 6.6.1 -- SR03, C4DL 6.6.0 -- SR09, Replicate 6.6.0 -- SR06, Replicate 7.0.0 -- SR05, QEM 6.6.0 -- SR03, QEM 7.0.0 -- SR05
• January 20, 2022 3:15pm EST: Clarified that there are two patches for GeoAnalytics November 2021. Patch 2 updates log4j to 2.17.0

• February 15, 2022 4:00pm EST: Updated chart to breakout vulnerabilities per product, reflect the latest patch versions to upgrade to, changed post title, and clarified intro statement.

[PatrickQ]

@Jhchengus , sorry about that, I couldn't reply earlier. There is no specific command to verify the change, but Qlik has tested these changes and confirmed they mitigate the vulnerability.

[parimalpatel]

There are new updates on this issue stating "LOG4J_FORMAT_MSG_NO_LOOKUPS=true as a mitigation for CVE-2021-44228:
While this does help, an app *MAY* still be vulnerable, depending on how it uses log4j."

Can Qlik confirm if that's the case with Replicate V7 and if they're planning to release the patch or another temp fix to resolve this completely?

References:
https://twitter.com/wdormann/status/1470804255552557064

“Note that previous mitigations involving configuration such as to set the system property `log4j2.noFormatMsgLookup` to `true` do NOT mitigate this specific vulnerability.”
- from https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-45046

[MarcinB]

The latest from Apache that one of the mitigation steps (setting of JVM parameter "‐Dlog4j2.formatMsgNoLookups=True”) is now discredited.  https://logging.apache.org/log4j/2.x/security.html.

Please provide alternative solution

[LHes]

Here is a proposed fix for CVE-2021-45046

Please note that those are no official fixes from Qlik so use at your own risk. Maybe someone from the Qlik Support Team can confirm that the class removal does not affect any functions.

Affected Jars I found so far are

Replicate: $REPLICATE_HOME/endpoint_srv/externals

log4j-core-2.11.1.jar

Proposed fix (not yet confirmed by Qlik) is to delete the JndiLookup Class from the Jar. Shutdown Replicate before doing that:

zip -q -d log4j-core-*.jar org/apache/logging/log4j/core/lookup/JndiLookup.class

Enterprise Manager:

%ENTERPRISE_MANAGER_HOME%\Enterprise Manager\java\external

log4j-core-2.11.1.jar

Proposed fix (not yet confirmed by Qlik) is to delete the JndiLookup Class from the Jar. Shutdown Enterprise Manager before doing that.

You can delete the class org/apache/logging/log4j/core/lookup/JndiLookup.class by using a e.g. a zip file manager like 7-zip.

[MarcinB]

@LHes thanks for sharing. This is something what Apache recommended but I would not  recommend using this mitigation until Qlik confirm that they are not using JNDI lookups otherwise you are risking system stability. 

[LHes]

@MarcinB  you are absolutely right. It is just a proposed fix for Replicate and Enterprise Manager and I hope that Qlik can confirm it. You should definitely wait until then before deploying it to production.

I have tested it in a dev environment and for now everything seems to be okay. But of course I have not tested it with every connector, especially not the ones relying on Java.

Even if you test it I would suggest you backup the mentioned jars before deleting the classes so you can revert the fix.

[MarcinB]

@LHes  - awesome that solution seems to work well on dev. I have also docker image build waiting on standby.

@Qlik you mitigation measures should also include Dockerfile.

[amitarusi]

Is Qlikview Server Build 12.20.21000.0 ,Nov 2017 sr8 effected?

[PatrickQ]

Hi everyone, as noted in the post, the mitigation steps have been provided as a temporary measure. Qlik will be releasing patches and I'll update the post as soon as I have more information.

[PatrickQ]

@amitarusi , according to the product lifecycle page, that build is past end of support. Qlik is focused on evaluating, mitigating, and patching supported product versions.