Drop out of the 'root' group to ensure the process does
not have any access to writable or readable files
to that group.
Signed-off-by: Steve Dickson <steved@xxxxxxxxxx>
---
src/rpcbind.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/src/rpcbind.c b/src/rpcbind.c
index 24e069b..9a0504d 100644
--- a/src/rpcbind.c
+++ b/src/rpcbind.c
@@ -236,6 +236,10 @@ main(int argc, char *argv[])
syslog(LOG_ERR, "setgid to '%s' (%d) failed: %m", id, p->pw_gid);
exit(1);
}
+ if (setgroups(0, NULL) == -1) {
+ syslog(LOG_ERR, "dropping supplemental groups failed: %m");
+ exit(1);
+ }
if (setuid(p->pw_uid) == -1) {
syslog(LOG_ERR, "setuid to '%s' (%d) failed: %m", id, p->pw_uid);
exit(1);
--
1.7.7.6
--
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