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log4j2 vulnerability (CVE-2021-44228)

New Contributor

Hello,

 

I wanted to ask if there's a page / instructions / info regarding the recent log4j2 vulnerability (https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-44228) and how it can affect Cloudera CDH setups? If it does affect, what are the recommended mitigations on it?

 

Thanks,

Mor

39 REPLIES 39

New Contributor

It is in deed an important question.

New Contributor

Following - Cloudera please provide recommendations as this is really urgent.

Explorer

Please go through below apache docs, its might help 

 

https://logging.apache.org/log4j/2.x/manual/migration.html

New Contributor

I upgraded log4j to 2.17 0, but the following error occurred when restarting hiveserver2:

 

微信图片_20211224160407.png

Explorer

Hi All,

 

Is there any impact of CVE-2021-44228 - log4j Arbitrary RCE on CDH 5.x and 6.x??

 

Regards,

Hanu

Community Manager

Cloudera platform security teams are actively assessing the impact to our on-premises and cloud  products and will provide an impact analysis update to customers as soon as possible.


Cy Jervis, Manager, Community Program
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New Contributor

Hi Team,

 

Currenlty in our organization we are using Cloudera 6.3.1 express edition, recently our company security team came up with log4j CVE-2021-44228  vulnerable, Could you please suggest due to this any problem for cloudera ? 

 

Thanks

Srikanth

I second this question. I currently administer a CDH 5.16 cluster that we're in the process of upgrading to CDP 7.x. Is there a statement from cloudera about the extent of the vulnerablility in their products and how we can go about patching it?

New Contributor

Hi Thomas 

 

Could you please refer to below url , this statement came from apache, but not from Cloudera. 

 

 

https://logging.apache.org/log4j/2.x/security.html

 

Thanks

Srikanth

Hi Srikanth,

 

Thanks for that, it's a helpful link. 

 

It would still be great to get something offical from Cloudera. I've emailed our rep with them to see if he has any info. If he gets back to me, I'll drop anything relevant back into this thread.

 

Regards,

Tom

New Contributor

@ThomasHopewell Thank you for providing info, please let us know if you get any information on this issue . 

 

Thanks

Srikanth 

New Contributor

Hi Team, 

There is a vulnerability reported for Log4J in in the below link:-

https://github.com/advisories/GHSA-jfh8-c2jp-5v3q

As per our knowledge, NIFI uses LOGback which is a successor of Log4J, so we should not be having any issues/vulnerabilities with NIFI. But, we wanted to be sure of the same. Please share if in case anyone has any thoughts for NIFI over this.

 

We are using NIFI 1.8 currently in our organization which uses Logback 1.1.3

Explorer

Hive I believe is vulnerable and running 2.10.

New Contributor

I'm also curious about hive, not sure how to remediate.

Explorer

Obviously, the best solution would be to replace all jars with the latest Log4j2 jars, but the way Cloudera does things now it might break things. In the long term, better to wait for them to make a statement.

 

Here's a link that may help, look under workarounds: https://msrc-blog.microsoft.com/2021/12/11/microsofts-response-to-cve-2021-44228-apache-log4j2/

New Contributor

I noticed this new repo on Cloudera's GitHub but have not seen any official communication about it on Cloudera's site, from our account team, or via the proactive support channels - that makes me leery about using it in our environment.

 

https://github.com/cloudera/cloudera-scripts-for-log4j

 

Explorer

Agreed. Glad to see anything being done, but an official message needs to be put out before I destroy production lol.

Community Manager

All, please read the Cloudera blog article on this topic:

 

Cloudera Response to CVE-2021-4428


Cy Jervis, Manager, Community Program
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Explorer

The TSB is not available unless you have a Knowledge Base subscription. Given the severity of the problem, will this information be made available to the public?

@Eric_B Yes. There is a link for non-customers of Cloudera in the blog article linked above. It's at the end of the paragraph beginning "What Cloudera products and versions are affected?"

VidyaSargur_0-1639464383654.png

 

 

 

Bill Brooks, Community Moderator
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