ID CVE CVE-2021-44228
ID CVE CVE_2021-45046
Pubblicazione Apache: Apache Log4j Remote Code Execution
Dell richiede che questa procedura di upgrade di xDoctor e installazione della patch venga eseguita dai clienti. È il metodo più rapido e sicuro in quanto evita l'esposizione prolungata a questa vulnerabilità Apache. Tutti i passaggi sono descritti in dettaglio in questo articolo della Knowledge Base. Al link indicato qui sotto è disponibile anche un video di istruzioni che può essere seguito insieme a questo articolo della Knowledge Base
Video: Apache-Log4j
D: La patch è parte integrante della release di xDoctor?
R: Lo script di installazione della patch è parte integrante della versione 4.8-79.1 di xDoctor e delle versioni successive. Le istruzioni per il download di xDoctor e l'installazione della patch sono contenute nella procedura di risoluzione.
D: È possibile aggiornare più VDC in parallelo?
R: No, solo una patch VDC alla volta.
D: È possibile applicare questa patch su un ECS che esegue la versione del codice 3.2.x o una versione precedente?
R: No, questa patch è applicabile solo alle versioni ECS 3.3.x - 3.6.x. Aprire una Service Request per pianificare un upgrade per le versioni precedenti.
D: Se si aggiorna un ECS dopo l'esecuzione di questa procedura, è necessario eseguire nuovamente la procedura dopo l'upgrade?
R: No, se si esegue l'upgrade a una versione del codice specificata in DSA-2021-273 con la correzione permanente. Sì, se si esegue l'upgrade a una versione del codice non specificata nello stesso DSA.
D: La patch deve essere riapplicata in un sistema in cui è stata precedentemente installata dopo la sostituzione, la ricreazione dell'immagine o l'espansione di un nodo?
R: No, se la versione del codice di VDC è quella specificata in DSA-2021-273. Sì, se si esegue una di queste azioni per un VDC che esegue una versione del codice non specificata nello stesso DSA. Se in queste situazioni è richiesta una patch, il tecnico Dell in questione contatterà l'utente per informarlo che è richiesto l'aggiornamento
D: Quale utente deve essere connesso per eseguire tutti i comandi descritti in questo articolo della KB?
R: admin
D: È necessario eseguire svc_patch su tutti i rack o con un file MACHINES specializzato quando un VDC contiene più rack?
R: No, viene rilevato automaticamente se sono presenti più rack e la patch viene applicata a tutti i nodi su tutti i rack del VDC.
D: Ho notato che la versione di xDoctor di destinazione è ora 4.8-79.1 e non 4.8-79.0. Per quale motivo?
R: Nuove versioni di xDoctor vengono rilasciate di frequente, pertanto è consigliabile eseguire sempre l'upgrade alla versione più recente. Se tuttavia in precedenza è stata eseguita una correzione Apache utilizzando la versione 4.8-79.0, il sistema è completamente protetto dalla vulnerabilità e non è necessario eseguirla nuovamente.
admin@node1:~> sudo xdoctor --version 4.8-79.1
Una volta scaricato l'RPM, utilizzare un programma SCP remoto per caricare il file nella directory /home/admin sul primo nodo ECS.
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
Comandi:
# screen -S patchinstall
# unset TMOUT
# /opt/emc/xdoctor/patches/CVE-2021-44228_45046_log4j-fix/svc_patch install
Esempio:
Nota: come si vede nell'output seguente, viene visualizzato un prompt che chiede se si desidera procedere.
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
Comando:
# /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.