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| author | David Herrmann <dh.herrmann@gmail.com> | 2015-02-14 15:13:38 +0100 |
|---|---|---|
| committer | David Herrmann <dh.herrmann@gmail.com> | 2015-02-14 15:13:38 +0100 |
| commit | d90c154eb180783098683ce8e1c03cd29d9b77ce (patch) | |
| tree | 21ab00bd3ec396b4abd5718f2d8e16927c0c9496 /src/bus-proxyd | |
| parent | 9cad100eca602aa33c2f56475c30fccf14abea1a (diff) | |
bus-proxy: don't fake data we don't have
UDS sockets transmit EUID+EGID only. Don't try to fake data we don't know!
Otherwise, this might be used to override user-limits by non-root setuid
programs (by faking UID==EUID).
Now that sd-bus is fixed to always use EUID even on UDS, we can safely set
all other UID/GID fields to INVALID.
Diffstat (limited to 'src/bus-proxyd')
| -rw-r--r-- | src/bus-proxyd/proxy.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/src/bus-proxyd/proxy.c b/src/bus-proxyd/proxy.c index 73f68b787..4be2a6289 100644 --- a/src/bus-proxyd/proxy.c +++ b/src/bus-proxyd/proxy.c @@ -81,14 +81,14 @@ static int proxy_create_destination(Proxy *p, const char *destination, const cha b->fake_pids.pid = p->local_creds.pid; b->fake_pids_valid = true; - b->fake_creds.uid = p->local_creds.uid; + b->fake_creds.uid = UID_INVALID; b->fake_creds.euid = p->local_creds.uid; - b->fake_creds.suid = p->local_creds.uid; - b->fake_creds.fsuid = p->local_creds.uid; - b->fake_creds.gid = p->local_creds.gid; + b->fake_creds.suid = UID_INVALID; + b->fake_creds.fsuid = UID_INVALID; + b->fake_creds.gid = GID_INVALID; b->fake_creds.egid = p->local_creds.gid; - b->fake_creds.sgid = p->local_creds.gid; - b->fake_creds.fsgid = p->local_creds.gid; + b->fake_creds.sgid = GID_INVALID; + b->fake_creds.fsgid = GID_INVALID; b->fake_creds_valid = true; } |