Package: makejail
Version: 0.0.5-9
Makejail fails to copy setuid bit. Can't find any way to force this
behaviour in the configuration, and I don't believe this is a design
feature.
The error seems to occur due to the ordering of the way the file
permissions and user/group ids are applied. Pasted below is a copy of
the relevant code.
#!/usr/bin/python
import stat
import sys
import os
import shutil
# May be useful to parse correctly some program outputs
os.environ["LANG"]="C"
def copyStatAndOwner(source,target):
# Keep all attributes
shutil.copystat(source,target)
# Copy user/group info
statInfos=os.stat(source)
os.chown(target,statInfos[stat.ST_UID],statInfos[stat.ST_GID])
def copyStatAndOwner2(source,target):
# Copy user/group info
statInfos=os.stat(source)
os.chown(target,statInfos[stat.ST_UID],statInfos[stat.ST_GID])
# Keep all attributes
shutil.copystat(source,target)
if __name__=="__main__":
file_in = "test.sh"
file_out = "test2.sh"
shutil.copy(file_in,file_out)
copyStatAndOwner2(file_in,file_out)
sys.exit(0)
CopyStatAndOwner is taken from makejail, CopyStatAndOwner2 is my
suggestion as a fix.
Running chown/chgrp from the command line on a setuid file has the same
effect, which would seem to be the root of the problem.
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