diff options
| author | Amar Tumballi <amarts@redhat.com> | 2018-08-09 13:00:01 +0530 |
|---|---|---|
| committer | Amar Tumballi <amarts@redhat.com> | 2018-09-05 09:23:26 +0000 |
| commit | 9ae986f18c0f251cba6bbc23eae2150a8ce0417e (patch) | |
| tree | f490a0aaa2bde0bfc954abd57570125d206ec148 /xlators/storage/posix/src | |
| parent | cc3271ebf3aacdbbc77fdd527375af78ab12ea8d (diff) | |
server-protocol: don't allow '../' path in 'name'
This will prevent any arbitrary file creation through glusterfs
by modifying the client bits.
Also check for the similar flaw inside posix too, so we prevent any
changes in layers in-between.
Fixes: bz#1625095
Signed-off-by: Amar Tumballi <amarts@redhat.com>
Change-Id: Id9fe0ef6e86459e8ed85ab947d977f058c5ae06e
Diffstat (limited to 'xlators/storage/posix/src')
| -rw-r--r-- | xlators/storage/posix/src/posix-handle.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/xlators/storage/posix/src/posix-handle.h b/xlators/storage/posix/src/posix-handle.h index b12e8b9610c..621f8f4d450 100644 --- a/xlators/storage/posix/src/posix-handle.h +++ b/xlators/storage/posix/src/posix-handle.h @@ -142,6 +142,12 @@ break; \ } \ \ + if (strstr (loc->name, "../")) { \ + gf_msg (this->name, GF_LOG_ERROR, 0, P_MSG_ENTRY_HANDLE_CREATE, \ + "'../' in name not allowed: (%s)", loc->name); \ + op_ret = -1; \ + break; \ + } \ if (LOC_HAS_ABSPATH (loc)) { \ MAKE_REAL_PATH (entp, this, loc->path); \ __parp = strdupa (entp); \ |