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  3. Log4j and log4j2 library vulnerability

Log4j and log4j2 library vulnerability

Scheduled Pinned Locked Moved Solved Support
security
31 Posts 10 Posters 9.9k Views 11 Watching
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  • girishG girish

    I am aware of solr being detected by the static analyzers (the marketplace images complain about the same). solr is used internally for full text search in the mail container. It's not on by default and it's also not exposed outside the internal docker network (so not exposed to outside world).

    Still, we will update the mail container. Solr only put out a new release yesterday which update log4j.

    M Offline
    M Offline
    Mastadamus
    wrote on last edited by
    #22

    @girish min patch to rectify log4j2 issues is 2.16 .. 2.15 is affected by cvss 9.0 rce in some instances.

    1 Reply Last reply
    4
    • rmdesR rmdes

      Docker Scan should allow us to scan cloudron containers if any doubt remains :
      https://www.docker.com/blog/apache-log4j-2-cve-2021-44228/

      edit : https://github.com/docker/scan-cli-plugin/releases/tag/v0.11.0

      M Offline
      M Offline
      Mastadamus
      wrote on last edited by
      #23

      @rmdes good suggestion.

      M 1 Reply Last reply
      0
      • M Mastadamus

        @rmdes good suggestion.

        M Offline
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        Mastadamus
        wrote on last edited by
        #24

        @mastadamus I'm happy to report that Crowdsec successfully responded to a log4j exploit scanner. If you set up your nginx log configuration per my post in support, and install the nginx collection as well as the log4j2 collection with an firewall iptable bouncer it will auto block any ip belonging to an attempt it parses out.

        crowdsec crowdsecurity/apache_log4j2_cve-2021-44228 Ip 45.83.65.33 2021-12-17 07:55:25 2021-12-17 07:55:25

        rmdesR 1 Reply Last reply
        3
        • M Mastadamus

          @mastadamus I'm happy to report that Crowdsec successfully responded to a log4j exploit scanner. If you set up your nginx log configuration per my post in support, and install the nginx collection as well as the log4j2 collection with an firewall iptable bouncer it will auto block any ip belonging to an attempt it parses out.

          crowdsec crowdsecurity/apache_log4j2_cve-2021-44228 Ip 45.83.65.33 2021-12-17 07:55:25 2021-12-17 07:55:25

          rmdesR Offline
          rmdesR Offline
          rmdes
          wrote on last edited by
          #25

          @mastadamus do you have a step by step instructions to setup crowdsec in a cloudron context ?

          M 2 Replies Last reply
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          • rmdesR rmdes

            @mastadamus do you have a step by step instructions to setup crowdsec in a cloudron context ?

            M Offline
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            Mastadamus
            wrote on last edited by
            #26

            @rmdes I'll put one together later tonight.

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            • rmdesR rmdes

              @mastadamus do you have a step by step instructions to setup crowdsec in a cloudron context ?

              M Offline
              M Offline
              Mastadamus
              wrote on last edited by
              #27

              @rmdes https://forum.cloudron.io/topic/6224/crowdsec-install-guide-for-cloudron-purposes

              rmdesR 1 Reply Last reply
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              • M Mastadamus

                @rmdes https://forum.cloudron.io/topic/6224/crowdsec-install-guide-for-cloudron-purposes

                rmdesR Offline
                rmdesR Offline
                rmdes
                wrote on last edited by
                #28

                @mastadamus thanks alot, will try to implement this & will report under your post 🙂

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                • nebulonN nebulon

                  @necrevistonnezr ah ok, then this is fine. It is not exposed or anything.

                  3 Offline
                  3 Offline
                  3gal
                  wrote on last edited by
                  #29

                  @nebulon I found log4j2 libary usage in kutt (urlshortener)

                  Standard config:

                  # ONLY NEEDED FOR MIGRATION !!1!
                  # Neo4j database credential details
                  NEO4J_DB_URI=bolt://localhost
                  NEO4J_DB_USERNAME=
                  NEO4J_DB_PASSWORD=
                  

                  changed to this without errors:

                  # ONLY NEEDED FOR MIGRATION !!1!
                  # Neo4j database credential details
                  #NEO4J_DB_URI=bolt://localhost
                  #NEO4J_DB_USERNAME=neo4j
                  #NEO4J_DB_PASSWORD=BjEphmupAf1D5pDD
                  

                  Is there anything else to do?
                  Is that even a issue?

                  girishG 1 Reply Last reply
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                  • 3 3gal

                    @nebulon I found log4j2 libary usage in kutt (urlshortener)

                    Standard config:

                    # ONLY NEEDED FOR MIGRATION !!1!
                    # Neo4j database credential details
                    NEO4J_DB_URI=bolt://localhost
                    NEO4J_DB_USERNAME=
                    NEO4J_DB_PASSWORD=
                    

                    changed to this without errors:

                    # ONLY NEEDED FOR MIGRATION !!1!
                    # Neo4j database credential details
                    #NEO4J_DB_URI=bolt://localhost
                    #NEO4J_DB_USERNAME=neo4j
                    #NEO4J_DB_PASSWORD=BjEphmupAf1D5pDD
                    

                    Is there anything else to do?
                    Is that even a issue?

                    girishG Offline
                    girishG Offline
                    girish
                    Staff
                    wrote on last edited by
                    #30

                    @3gal neo4j and log4j are different. the former is a database and the latter is logging library. Kutt anyway is written in typescript and not affected by log4j issue.

                    3 1 Reply Last reply
                    3
                    • girishG girish

                      @3gal neo4j and log4j are different. the former is a database and the latter is logging library. Kutt anyway is written in typescript and not affected by log4j issue.

                      3 Offline
                      3 Offline
                      3gal
                      wrote on last edited by
                      #31

                      @girish ah i didnt even notice bevause of all the 4j notices my eyes where too open 🐶

                      thx for looking at this anyway

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