- (djm) Try to drop supplemental groups at daemon startup. Patch from

   RedHat

1 files changed, 10 insertions, 0 deletions

diff --git a/sshd.c b/sshd.c
index f3e4d835e..589a1160d 100644
--- a/sshd.c
+++ b/sshd.c
@@ -1005,6 +1005,16 @@ main(int ac, char **av)
         if (test_flag)
                 exit(0);
 
+        /*
+         * Clear out any supplemental groups we may have inherited.  This
+         * prevents inadvertent creation of files with bad modes (in the
+         * portable version at least, it's certainly possible for PAM 
+         * to create a file, and we can't control the code in every 
+         * module which might be used).
+         */
+        if (setgroups(0, NULL) < 0)
+                debug("setgroups() failed: %.200s", strerror(errno));
+
         /* Initialize the log (it is reinitialized below in case we forked). */
         if (debug_flag && !inetd_flag)
                 log_stderr = 1;