33 lines
1.3 KiB
Diff
33 lines
1.3 KiB
Diff
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From 89b61793d80bc2cb2abe47a7d0549466fb087d16 Mon Sep 17 00:00:00 2001
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From: Johannes Meixner <jsmeix@suse.com>
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Date: Fri, 12 Jan 2024 08:04:40 +0100
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Subject: [PATCH] Make initrd accessible only by root (#3123)
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In pack/GNU/Linux/900_create_initramfs.sh call
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chmod 0600 "$TMP_DIR/$REAR_INITRD_FILENAME"
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to let only 'root' access the ReaR initrd because
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the ReaR recovery system in the initrd can contain secrets
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(not by default but when certain things are explicitly
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configured by the user like SSH keys without passphrase)
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see https://github.com/rear/rear/issues/3122
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and https://bugzilla.opensuse.org/show_bug.cgi?id=1218728
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---
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usr/share/rear/pack/GNU/Linux/900_create_initramfs.sh | 6 ++++++
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1 file changed, 6 insertions(+)
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diff --git a/usr/share/rear/pack/GNU/Linux/900_create_initramfs.sh b/usr/share/rear/pack/GNU/Linux/900_create_initramfs.sh
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index 1e0c11039..12be718ed 100644
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--- a/usr/share/rear/pack/GNU/Linux/900_create_initramfs.sh
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+++ b/usr/share/rear/pack/GNU/Linux/900_create_initramfs.sh
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@@ -125,4 +125,10 @@ case "$REAR_INITRD_COMPRESSION" in
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fi
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;;
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esac
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+
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+# Only root should be allowed to access the initrd
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+# because the ReaR recovery system can contain secrets
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+# cf. https://github.com/rear/rear/issues/3122
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+test -s "$TMP_DIR/$REAR_INITRD_FILENAME" && chmod 0600 "$TMP_DIR/$REAR_INITRD_FILENAME"
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+
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popd >/dev/null
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