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CVE-2015-7560: s3: smbd: Refuse to set an ACL from a POSIX file handle on a symlink.

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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>
This commit is contained in:
Jeremy Allison 2016-01-05 10:52:50 -08:00 committed by Karolin Seeger
parent fa1c482083
commit 774e210f89
1 changed files with 6 additions and 0 deletions
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6
source3/smbd/nttrans.c
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@ -875,6 +875,12 @@ 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;
}