CVE-Kennung CVE-2021-44228
CVE-Kennung CVE_2021-45046
Apache-Veröffentlichung: Apache Log4j Remote Code Execution
Dell bittet KundInnen, dieses Verfahren für das Upgrade von xdoctor und die Installation des Patches durchzuführen. Dies ist die schnellste und sicherste Methode, die eine längere Anfälligkeit gegenüber dieser Apache-Sicherheitslücke vermeidet. Alle Schritte werden in diesem Wissensdatenbank-Artikel beschrieben. Es gibt auch eine Videoanleitung, die diesem Wissensdatenbank-Artikel beigefügt und unter folgendem Link zu finden ist.
Video: Apache-Log4j
F: Ist der Patch Teil der xdoctor-Version?
A: Das Patchinstallationsskript ist Teil der xdoctor-Version 4.8-79.1 und höher. Weisungen für den Download von xdoctor und die Ausführung der Patchinstallation finden Sie in den Lösungsschritten.
F: Kann ich mehrere VDCs parallel aktualisieren?
A: Nein, führen Sie den Patch für jedes VDC einzeln durch.
F: Kann ich diesen Patch auf einem ECS anwenden, auf dem die Codeversion 3.2.x oder früher ausgeführt wird?
A: Nein, dieser Patch ist nur auf die ECS-Versionen 3.3.x bis 3.6.x anwendbar. Eröffnen Sie eine Service-Request, um ein Upgrade für frühere Versionen zu planen.
F: Wenn ich nach dem Ausführen dieses Verfahrens ein Upgrade von ECS durchführen möchte, führe ich das Verfahren nach dem Upgrade erneut aus?
A: Nein, sofern Sie ein Upgrade auf eine Codeversion durchführen, die in DSA-2021-273 angegeben ist und die dauerhafte Lösung enthält. Ja, sofern ein Upgrade auf eine Codeversion durchgeführt wird, die nicht in derselben DSA angegeben ist.
F: Muss der Patch erneut auf einem System angewendet werden, auf dem er zuvor nach einem Node-Austausch, einem Re-Imaging oder einer Erweiterung installiert wurde?
A: Nein, wenn das VDC die in DSA-2021-273 angegebene Codeversion hat. Ja, wenn Sie eine dieser Aktionen für ein VDC durchführen, auf dem eine Codeversion ausgeführt wird, die nicht in derselben DSA angegeben ist. Wenn in diesen Szenarien ein Patch erforderlich ist, kontaktieren Sie die betreffenden TechnikerInnen bei Dell mit der Information über das erforderliche Update.
F: Welcher Nutzer sollte angemeldet sein, um alle Befehle in diesem Wissensdatenbank-Artikel auszuführen?
A: admin
F: Muss svc_patch auf allen Racks oder mit einer spezialisierten MACHINES-Datei ausgeführt werden, wenn sich mehrere Racks in einem VDC befinden?
A: Nein, das Skript erkennt automatisch, wenn mehrere Racks vorhanden sind, und führt den Patch für alle Nodes auf allen Racks in diesem VDC durch.
F: Ich habe bemerkt, dass die xdoctor-Zielversion jetzt 4.8-79.1 und nicht 4.8-79.0 ist. Warum ist das so?
A: xDoctor-Versionen werden häufig veröffentlicht, daher wird immer empfohlen, ein Upgrade auf die höchste veröffentlichte Version durchzuführen. Wenn Sie jedoch zuvor den Apache Fix mit 4.8-79.0 ausgeführt haben, ist das System vollständig geschützt gegen diese Sicherheitslücke und das Skript muss nicht erneut ausgeführt werden.
admin@node1:~> sudo xdoctor --version 4.8-79.1
Verwenden Sie nach dem Herunterladen des RPM ein beliebiges Remote-SCP-Programm, um die Datei in das Verzeichnis /home/admin auf dem ersten ECS-Node hochzuladen.
admin@node1:~> sudo xdoctor --upgrade --local=/home/admin/xDoctor4ECS-4.8-79.1.noarch.rpm 2021-12-20 12:06:11,358: xDoctor_4.8-78.2 - INFO : xDoctor Upgrader Instance (2:FTP_SFTP) 2021-12-20 12:06:11,358: xDoctor_4.8-78.2 - INFO : Local Upgrade (/home/admin/xDoctor4ECS-4.8-79.1.noarch.rpm) 2021-12-20 12:06:11,392: xDoctor_4.8-78.2 - INFO : Current Installed xDoctor version is 4.8-78.2 2021-12-20 12:06:11,429: xDoctor_4.8-78.2 - INFO : Requested package version is 4.8-79.1 2021-12-20 12:06:11,430: xDoctor_4.8-78.2 - INFO : Updating xDoctor RPM Package (RPM) 2021-12-20 12:06:11,482: xDoctor_4.8-78.2 - INFO : - Distribute package 2021-12-20 12:06:12,099: xDoctor_4.8-78.2 - INFO : - Install new rpm package 2021-12-20 12:06:37,829: xDoctor_4.8-78.2 - INFO : xDoctor successfully updated to version 4.8-79.1
admin@ecsnode1~> svc_exec -m "ip address show private.4 |grep -w inet" svc_exec v1.0.2 (svc_tools v2.1.0) Started 2021-12-20 14:03:33 Output from node: r1n1 retval: 0 inet 169.254.1.1/16 brd 169.254.255.255 scope global private.4 Output from node: r2n1 retval: 0 inet 169.254.2.1/16 brd 169.254.255.255 scope global private.4 Output from node: r3n1 retval: 0 inet 169.254.3.1/16 brd 169.254.255.255 scope global private.4 Output from node: r4n1 retval: 0 inet 169.254.4.1/16 brd 169.254.255.255 scope global private.4
admin@ecsnode1~> scp xDoctor4ECS-4.8-79.1.noarch.rpm 169.254.2.1:/home/admin/ xDoctor4ECS-4.8-79.1.noarch.rpm 100% 32MB 31.9MB/s 00:00 admin@ecsnode1~> scp xDoctor4ECS-4.8-79.1.noarch.rpm 169.254.3.1:/home/admin/ xDoctor4ECS-4.8-79.1.noarch.rpm 100% 32MB 31.9MB/s 00:00 admin@ecsnode1~> scp xDoctor4ECS-4.8-79.1.noarch.rpm 169.254.4.1:/home/admin/ xDoctor4ECS-4.8-79.1.noarch.rpm 100% 32MB 31.9MB/s 00:00 admin@ecsnode1~>
admin@node1:~> svc_dt check -b svc_dt v1.0.25 (svc_tools v2.0.2) Started 2021-12-16 16:44:51 Date Total DT Unknown # Unready # RIS Fail # Dump Fail # Check type Time since check Check successful 2021-12-16 16:43:44 2432 0 0 0 0 AutoCheck 1m 7s True 2021-12-16 16:42:33 2432 0 0 0 0 AutoCheck 2m 18s True 2021-12-16 16:41:23 2432 0 0 0 0 AutoCheck 3m 28s True 2021-12-16 16:40:13 2432 0 0 0 0 AutoCheck 4m 38s True 2021-12-16 16:39:02 2432 0 0 0 0 AutoCheck 5m 49s True 2021-12-16 16:37:52 2432 0 0 0 0 AutoCheck 6m 59s True 2021-12-16 16:36:42 2432 0 0 0 0 AutoCheck 8m 9s True 2021-12-16 16:35:31 2432 0 0 0 0 AutoCheck 9m 20s True 2021-12-16 16:34:21 2432 0 0 0 0 AutoCheck 10m 30s True 2021-12-16 16:33:11 2432 0 0 0 0 AutoCheck 11m 40s True
admin@node1:~> /opt/emc/xdoctor/patches/CVE-2021-44228_45046_log4j-fix/svc_patch status svc_patch Version 2.9.1 Verifying patch bundle consistency DONE Detecting nodes in current VDC DONE Reading in patch details (1 of 2) DONE Reading in patch details (2 of 2) DONE Validating nodes are online DONE Checking Installed Patches and Dependencies DONE Patches/releases currently installed: [ None detected ] Patches that need to be installed: CVE-2021-44228_log4j-fix_3.3.x-3.6.2 (PatchID: 3298) Files that need to be installed: /opt/storageos/lib/log4j-core-2.5.jar (from CVE-2021-44228_log4j-fix_3.3.x-3.6.2) The following services need to be restarted: ALL
Befehle:
# screen -S patchinstall
# unset TMOUT
# /opt/emc/xdoctor/patches/CVE-2021-44228_45046_log4j-fix/svc_patch install
Beispiel:
Hinweis: Eine Aufforderung zum Fortfahren ist in der folgenden Ausgabe enthalten.
admin@node1:~>screen -S patchinstall admin@node1:~> unset TMOUT admin@node1:~> /opt/emc/xdoctor/patches/CVE-2021-44228_45046_log4j-fix/svc_patch install svc_patch Version 2.9.1 Verifying patch bundle consistency DONE Detecting nodes in current VDC DONE Reading in patch details (1 of 2) DONE Reading in patch details (2 of 2) DONE Validating nodes are online DONE Checking Installed Patches and Dependencies DONE Patches/releases currently installed: [ None detected ] Patches that will be installed: CVE-2021-44228_log4j-fix_3.3.x-3.6.2 (PatchID: 3298) Files that will be installed: /opt/storageos/lib/log4j-core-2.5.jar (from CVE-2021-44228_log4j-fix_3.3.x-3.6.2) The following services will be restarted: ALL Patch Type: Standalone Number of nodes: 8 Number of seconds to wait between restarting node services: 450 Check DT status between node service restarts: true Do you wish to continue (y/n)?y [...Truncated Output of each node Distributing files and restarting services...] Distributing files to node 1xx.xxx.xx.xx Distributing patch installer to node '1xx.xxx.xx.xx' Restarting services on 1xx.xxx.xx.xx Restarting all services Waiting 180 seconds for services to stabilize... [...Truncated Output of each node Distributing files and restarting services...] Stopping ViPR services..done Services status 3: stat georeceiver eventsvc blobsvc dataheadsvc blobsvc-perf blobsvc-fi resourcesvc resourcesvc-perf resourcesvc-fi rm cm ssm objcontrolsvc metering sr storageserver nvmeengine nvmetargetviewer dtquery dtsm vnest coordinatorsvc ecsportalsvc transformsvc Setting up SSL certificates ...done Starting ViPR services..done Waiting 300 seconds for services to stabilize...DONE Patching complete. admin@node1:~>
admin@node1:/> exit logout [screen is terminating] admin@node1:/>
admin@node 1:~> screen -ls There is a screen on: 114475.pts-0.ecs-n3 (Detached) 1 Socket in /var/run/uscreens/S-admin.
admin@node1:~> screen -r 114475.pts-0.ecs-n3
Befehl:
# /opt/emc/xdoctor/patches/CVE-2021-44228_45046_log4j-fix/svc_patch status
admin@node1:/> /opt/emc/xdoctor/patches/CVE-2021-44228_45046_log4j-fix/svc_patch status svc_patch Version 2.9.1 Verifying patch bundle consistency DONE Detecting nodes in current VDC DONE Reading in patch details (1 of 2) DONE Reading in patch details (2 of 2) DONE Validating nodes are online DONE Checking Installed Patches and Dependencies DONE Patches/releases currently installed: CVE-2021-44228_log4j-fix_3.3.x-3.6.2 (PatchID: 3298) Fixes for Log4j vulnerabilities CVE-2021-44228 and CVE-2021-45046 Patches that need to be installed: No files need to be installed. The following services need to be restarted: No services need to be restarted.
admin@node1:/> /opt/emc/xdoctor/patches/CVE-2021-44228_45046_log4j-fix/svc_patch status svc_patch Version 2.9.1 Verifying patch bundle consistency DONE Detecting nodes in current VDC DONE Reading in patch details (1 of 2) DONE Reading in patch details (2 of 2) DONE Validating nodes are online DONE Checking Installed Patches and Dependencies DONE Patches/releases currently installed: [ None detected ] Patches that need to be installed: CVE-2021-44228_log4j-fix_3.3.x-3.6.2 (PatchID: 3298) Files that need to be installed: /opt/storageos/lib/log4j-core-2.5.jar (from CVE-2021-44228_log4j-fix_3.3.x-3.6.2) The following services need to be restarted: ALL
admin@node1:~> /opt/emc/xdoctor/patches/CVE-2021-44228_45046_log4j-fix/svc_patch install [...Truncated Output of each node Distributing files and restarting services...] Restarting services on 1xx.xx.xx.xx Restarting all services Waiting 180 seconds for services to stabilize...DONE Waiting for DTs to come online ERROR: DT Check failed. DTs did not come ready or could not be checked after several passes. Do you wish to continue anyway (y/n)?
admin@node1:~> svc_dt check -b svc_dt v1.0.25 (svc_tools v2.0.2) Started 2021-12-15 17:18:52 Date Total DT Unknown # Unready # RIS Fail # Dump Fail # Check type Time since check Check successful 2021-12-15 17:17:54 1920 0 0 0 0 AutoCheck 0m 58s True 2021-12-15 17:16:44 1920 0 0 0 0 AutoCheck 2m 8s True 2021-12-15 17:16:10 1920 0 0 0 0 Manual Check 2m 42s True 2021-12-15 17:15:34 1920 0 0 0 0 AutoCheck 3m 18s True 2021-12-15 17:14:24 1920 0 0 0 0 AutoCheck 4m 28s True 2021-12-15 17:13:13 1920 0 0 0 0 AutoCheck 5m 39s True 2021-12-15 17:12:03 1920 0 0 0 0 AutoCheck 6m 49s True 2021-12-15 17:10:53 1920 0 0 0 0 AutoCheck 7m 59s True 2021-12-15 17:09:43 1920 0 0 0 0 AutoCheck 9m 9s True 2021-12-15 17:08:32 1920 0 0 0 0 AutoCheck 10m 20s True
admin@node1:~> /opt/emc/xdoctor/patches/CVE-2021-44228_45046_log4j-fix/svc_patch status svc_patch Version 2.9.1 Verifying patch bundle consistency DONE Detecting nodes in current VDC DONE Reading in patch details (1 of 2) DONE Reading in patch details (2 of 2) DONE Validating nodes are online DONE Checking Installed Patches and Dependencies DONE All nodes currently do not have the same patches installed. Patches/releases currently installed: 169.254.1.1: CVE-2021-44228_45046_log4j-fix 169.254.1.2: CVE-2021-44228_45046_log4j-fix 169.254.1.3: CVE-2021-44228_45046_log4j-fix 169.254.1.4: CVE-2021-44228_45046_log4j-fix 169.254.1.5: CVE-2021-44228_45046_log4j-fix 169.254.1.6: CVE-2021-44228_45046_log4j-fix Patches that need to be installed: 169.254.1.1: 169.254.1.2: 169.254.1.3: 169.254.1.4: 169.254.1.5: 169.254.1.6: Files that need to be installed: 169.254.1.1: 169.254.1.2: 169.254.1.3: 169.254.1.4: 169.254.1.5: 169.254.1.6: Services that need to be restarted: 169.254.1.1: 169.254.1.2: 169.254.1.3: 169.254.1.4: 169.254.1.5: ALL 169.254.1.6: ALL admin@ecsnode1:~>
admin@node1:~> /opt/emc/xdoctor/patches/CVE-2021-44228_45046_log4j-fix/svc_patch install svc_patch Version 2.9.1 Verifying patch bundle consistency DONE Detecting nodes in current VDC DONE Reading in patch details (1 of 2) DONE Reading in patch details (2 of 2) DONE Validating nodes are online DONE Checking Installed Patches and Dependencies DONE All nodes currently do not have the same patches installed. Patches/releases currently installed: 169.254.1.1: CVE-2021-44228_45046_log4j-fix 169.254.1.2: CVE-2021-44228_45046_log4j-fix 169.254.1.3: CVE-2021-44228_45046_log4j-fix 169.254.1.4: CVE-2021-44228_45046_log4j-fix 169.254.1.5: CVE-2021-44228_45046_log4j-fix 169.254.1.6: CVE-2021-44228_45046_log4j-fix Patches that will be installed: 169.254.1.1: 169.254.1.2: 169.254.1.3: 169.254.1.4: 169.254.1.5: 169.254.1.6: Files that will be installed: 169.254.1.1: 169.254.1.2: 169.254.1.3: 169.254.1.4: 169.254.1.5: 169.254.1.6: Services that will be restarted: 169.254.1.1: 169.254.1.2: 169.254.1.3: 169.254.1.4: 169.254.1.5: ALL 169.254.1.6: ALL Patch Type: Standalone Number of nodes: 8 Number of seconds to wait between restarting node services: 450 Check DT status between node service restarts: true Do you wish to continue (y/n)?y No files to install on 169.254.1.1 Distributing patch installer to node '169.254.1.1' No files to install on 169.254.1.2 Distributing patch installer to node '169.254.1.2' No files to install on 169.254.1.3 Distributing patch installer to node '169.254.1.3' No files to install on 169.254.1.4 Distributing patch installer to node '169.254.1.4' No files to install on 169.254.1.5 Distributing patch installer to node '169.254.1.5' No files to install on 169.254.1.6 Distributing patch installer to node '169.254.1.6' No services to restart on 169.254.1.1 No services to restart on 169.254.1.2 No services to restart on 169.254.1.3 No services to restart on 169.254.1.4 Restarting services on 169.254.1.5 Restarting all services Waiting 450 seconds for services to stabilize...DONE Waiting for DTs to come online Restarting services on 169.254.1.6 Restarting all services Waiting 450 seconds for services to stabilize...DONE Waiting for DTs to come online Patching complete. admin@ecsnode1:~>
svc_patch Version 2.9.1 Verifying patch bundle consistency DONE Detecting nodes in current VDC DONE Reading in patch details (1 of 2) DONE Reading in patch details (2 of 2) DONE Validating nodes are online FAILED ERROR: Could not execute commands on the object-main container on 169.254.x.x Output was 'Failed to add the host to the list of known hosts (/home/admin/.ssh/known_hosts). :patchtest:' Patching is unable to continue with unreachable nodes. To proceed: - Resolve problems accessing node(s) from this one. - Manually pass a MACHINES file containing the list of working nodes to patch (not recommended). - Contact your next level of support for other options or assistance.
admin@node1:~> ls -l /home/admin/.ssh/known_hosts -rw------- 1 root root 1802 Jul 23 2019 /home/admin/.ssh/known_hosts admin@ecs:~>
admin@node1:~> sudo chown admin:users /home/admin/.ssh/known_hosts
admin@node1:~> /opt/emc/xdoctor/patches/CVE-2021-44228_45046_log4j-fix/svc_patch install
svc_patch Version 2.9.1 Verifying patch bundle consistency DONE Detecting nodes in current VDC DONE Reading in patch details (1 of 2) DONE Reading in patch details (2 of 2) DONE Validating nodes are online FAILED ERROR: Could not execute commands on the object-main container on 169.254.x.x Output was '@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY! Someone could be eavesdropping on you right now (man-in-the-middle attack)! It is also possible that a host key has just been changed. The fingerprint for the ECDSA key sent by the remote host is SHA256:RcwOsFj7zPA5p5kSeYovF4UlZTm125nLVeCL1zCqOzc. Please contact your system administrator. Add correct host key in /home/admin/.ssh/known_hosts to get rid of this message. Offending ECDSA key in /home/admin/.ssh/known_hosts:14 You can use following command to remove the offending key: ssh-keygen -R 169.254.x.x -f /home/admin/.ssh/known_hosts Password authentication is disabled to avoid man-in-the-middle attacks. Keyboard-interactive authentication is disabled to avoid man-in-the-middle attacks. :patchtest:' Patching is unable to continue with unreachable nodes. To proceed: - Resolve problems accessing node(s) from this one. - Manually pass a MACHINES file containing the list of working nodes to patch (not recommended). - Contact your next level of support for other options or assistance.