xccdf_org.ssgproject.content_rule_ensure_redhat_gpgkey_installed bash remediation script

[Packard, Scott E [US] (AS)]

For the Rule ID: xccdf_org.ssgproject.content_rule_ensure_redhat_gpgkey_installed
bash remediation script
Seen here (among other places):
http://people.redhat.com/swells/ComplianceAsCode-build-01082020/guides/ss...

On the "readarray" line, shouldn't that be:
readarray -t GPG_OUT < $(gpg --with-fingerprint --with-colons
"$REDHAT_RELEASE_KEY" | grep "^fpr" | cut -d ":" -f 10)

So, $(stmt) instead of <(stmt)?

Full original script follows
--
# The two fingerprints below are retrieved from
https://access.redhat.com/security/team/key
readonly REDHAT_RELEASE_FINGERPRINT="567E347AD0044ADE55BA8A5F199E2F91FD431D51"
readonly
REDHAT_AUXILIARY_FINGERPRINT="43A6E49C4A38F4BE9ABF2A5345689C882FA658E0"

# Location of the key we would like to import (once it's integrity verified)
readonly REDHAT_RELEASE_KEY="/etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release"

RPM_GPG_DIR_PERMS=$(stat -c %a "$(dirname "$REDHAT_RELEASE_KEY")")

# Verify /etc/pki/rpm-gpg directory permissions are safe
if [ "${RPM_GPG_DIR_PERMS}" -le "755" ]
then
  # If they are safe, try to obtain fingerprints from the key file
  # (to ensure there won't be e.g. CRC error).

  readarray -t GPG_OUT < <(gpg --with-fingerprint --with-colons
"$REDHAT_RELEASE_KEY" | grep "^fpr" | cut -d ":" -f 10)

  GPG_RESULT=$?
  # No CRC error, safe to proceed
  if [ "${GPG_RESULT}" -eq "0" ]
  then
    echo "${GPG_OUT[*]}" | grep -vE
"${REDHAT_RELEASE_FINGERPRINT}|${REDHAT_AUXILIARY_FINGERPRINT}" || {
      # If $REDHAT_RELEASE_KEY file doesn't contain any keys with unknown fingerprint,
import it
      rpm --import "${REDHAT_RELEASE_KEY}"
    }
  fi
fi
--


Regards, Scott
--
Scott Packard | Sr Principal Engr Comm Systems
Northrop Grumman Corporation | Aerospace Systems 
O: 626-812-1703 | scott.packard(a)ngc.com | email2text: 6262200032(a)usamobility.net