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RunCommand: set umask when creating log paths

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This uses the somewhat restrictive umask of 0027 so that people outside
the user or group cannot read the files. This also helps to inhibit
TOCTOU where someone else has a handle to our file before we chmod it
and after we close it.
This commit is contained in:
Cole Helbling 2022-01-24 11:27:09 -08:00
parent 5d3912962b
commit bb16f4fb10
1 changed files with 6 additions and 2 deletions
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8
src/lib/Hydra/Plugin/RunCommand.pm
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@ -167,12 +167,16 @@ sub buildFinished {
my $filename = constructRunCommandLogFilename(sha1_hex($command), $build->get_column('id'));
my $logPath = constructRunCommandLogPath($filename);
my $dir = dirname($logPath);
my $oldUmask = umask();
mkdir($dir, oct(755));
# file: 640, dir: 750
umask(0027);
mkdir($dir);
open(my $f, '>', $logPath);
close($f);
chmod(oct(644), $logPath);
umask($oldUmask);
# Run the command
system("$command 1>$logpath 2>&1") == 0