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Mitigate PwnKit vulnerability by removing setuid bit from /usr/bin/pkexec (#622)

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https://blog.qualys.com/vulnerabilities-threat-research/2022/01/25/pwnkit-local-privilege-escalation-vulnerability-discovered-in-polkits-pkexec-cve-2021-4034
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Miller 2022-01-26 21:50:37 -05:00 committed by GitHub
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rootfs/standard/usr/bin/mynode_post_upgrade.sh
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@ -47,6 +47,8 @@ if ! skip_base_upgrades ; then
# Migrate from version file to version+install combo # Migrate from version file to version+install combo
/usr/bin/mynode_migrate_version_files.sh /usr/bin/mynode_migrate_version_files.sh
# PwnKit vulnerability mitigation
chmod 0755 /usr/bin/pkexec
# Stop and disable any old services # Stop and disable any old services
systemctl disable https || true systemctl disable https || true