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| author | Jeremy Allison <jra@samba.org> | 2016-01-05 10:52:50 -0800 |
|---|---|---|
| committer | Karolin Seeger <kseeger@samba.org> | 2016-02-24 11:38:52 +0100 |
| commit | 9e6620b22f3d20b4f05f38ea2a16c7f8ec6ea1b7 (patch) | |
| tree | b51c08fadc0d375a2ea466a4a3bf8c39e816dba6 | |
| parent | 7f893ff4e635fd42ab5d02b0ef3504b899f79d04 (diff) | |
| download | samba-9e6620b22f3d20b4f05f38ea2a16c7f8ec6ea1b7.tar.gz | |
CVE-2015-7560: s3: smbd: Refuse to set an ACL from a POSIX file handle on a symlink.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11648
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
| -rw-r--r-- | source3/smbd/nttrans.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/source3/smbd/nttrans.c b/source3/smbd/nttrans.c index 5a6a784b16d..8d887a30076 100644 --- a/source3/smbd/nttrans.c +++ b/source3/smbd/nttrans.c @@ -882,6 +882,12 @@ NTSTATUS set_sd(files_struct *fsp, struct security_descriptor *psd, return NT_STATUS_OK; } + if (S_ISLNK(fsp->fsp_name->st.st_ex_mode)) { + DEBUG(10, ("ACL set on symlink %s denied.\n", + fsp_str_dbg(fsp))); + return NT_STATUS_ACCESS_DENIED; + } + if (psd->owner_sid == NULL) { security_info_sent &= ~SECINFO_OWNER; } |