Re: cpio privilege escalation vulnerability via setuid files in cpio archive

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Posted by fulldisclosure on Jan 14

Am 08.01.24 um 10:25 schrieb Georgi Guninski:

It’s not a vulnerability, as

a) cpio archives must archive that flag as cpio is part of RPM packages
and those
must be able to contain setuid flags. Otherwise, you would need to add
chmod u+s  cmds to any %POST
section. Breaking this, would invalidate so many existing packages =>
won’t happen

note: initramfs makes use of cpio as well, but setuid is not needed
here, as it’s…

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