]> git.ipfire.org Git - people/ms/suricata.git/blame - rules/decoder-events.rules
ipv6 defrag: fix unfragmentable exthdr handling
[people/ms/suricata.git] / rules / decoder-events.rules
CommitLineData
6a048f2d 1# Decoder event signatures for Suricata.
d9ad1b00 2# SID's fall in the 2200000+ range. See http://doc.emergingthreats.net/bin/view/Main/SidAllocation
6a048f2d
VJ
3alert pkthdr any any -> any any (msg:"SURICATA IPv4 packet too small"; decode-event:ipv4.pkt_too_small; sid:2200000; rev:1;)
4alert pkthdr any any -> any any (msg:"SURICATA IPv4 header size too small"; decode-event:ipv4.hlen_too_small; sid:2200001; rev:1;)
5alert pkthdr any any -> any any (msg:"SURICATA IPv4 total length smaller than header size"; decode-event:ipv4.iplen_smaller_than_hlen; sid:2200002; rev:1;)
6alert pkthdr any any -> any any (msg:"SURICATA IPv4 truncated packet"; decode-event:ipv4.trunc_pkt; sid:2200003; rev:1;)
7alert pkthdr any any -> any any (msg:"SURICATA IPv4 invalid option"; decode-event:ipv4.opt_invalid; sid:2200004; rev:1;)
8alert pkthdr any any -> any any (msg:"SURICATA IPv4 invalid option length"; decode-event:ipv4.opt_invalid_len; sid:2200005; rev:1;)
9alert pkthdr any any -> any any (msg:"SURICATA IPv4 malformed option"; decode-event:ipv4.opt_malformed; sid:2200006; rev:1;)
10#alert pkthdr any any -> any any (msg:"SURICATA IPv4 padding required "; decode-event:ipv4.opt_pad_required; sid:2200007; rev:1;)
fdca557e 11alert pkthdr any any -> any any (msg:"SURICATA IPv4 with ICMPv6 header"; decode-event:ipv4.icmpv6; sid:2200092; rev:1;)
6a048f2d
VJ
12alert pkthdr any any -> any any (msg:"SURICATA IPv4 option end of list required"; decode-event:ipv4.opt_eol_required; sid:2200008; rev:1;)
13alert pkthdr any any -> any any (msg:"SURICATA IPv4 duplicated IP option"; decode-event:ipv4.opt_duplicate; sid:2200009; rev:1;)
14alert pkthdr any any -> any any (msg:"SURICATA IPv4 unknown IP option"; decode-event:ipv4.opt_unknown; sid:2200010; rev:1;)
15alert pkthdr any any -> any any (msg:"SURICATA IPv4 wrong IP version"; decode-event:ipv4.wrong_ip_version; sid:2200011; rev:1;)
16alert pkthdr any any -> any any (msg:"SURICATA IPv6 packet too small"; decode-event:ipv6.pkt_too_small; sid:2200012; rev:1;)
17alert pkthdr any any -> any any (msg:"SURICATA IPv6 truncated packet"; decode-event:ipv6.trunc_pkt; sid:2200013; rev:1;)
18alert pkthdr any any -> any any (msg:"SURICATA IPv6 truncated extension header"; decode-event:ipv6.trunc_exthdr; sid:2200014; rev:1;)
19alert pkthdr any any -> any any (msg:"SURICATA IPv6 duplicated Fragment extension header"; decode-event:ipv6.exthdr_dupl_fh; sid:2200015; rev:1;)
374947c3 20alert pkthdr any any -> any any (msg:"SURICATA IPv6 useless Fragment extension header"; decode-event:ipv6.exthdr_useless_fh; sid:2200080; rev:1;)
6a048f2d
VJ
21alert pkthdr any any -> any any (msg:"SURICATA IPv6 duplicated Routing extension header"; decode-event:ipv6.exthdr_dupl_rh; sid:2200016; rev:1;)
22alert pkthdr any any -> any any (msg:"SURICATA IPv6 duplicated Hop-By-Hop Options extension header"; decode-event:ipv6.exthdr_dupl_hh; sid:2200017; rev:1;)
23alert pkthdr any any -> any any (msg:"SURICATA IPv6 duplicated Destination Options extension header"; decode-event:ipv6.exthdr_dupl_dh; sid:2200018; rev:1;)
24alert pkthdr any any -> any any (msg:"SURICATA IPv6 duplicated Authentication Header extension header"; decode-event:ipv6.exthdr_dupl_ah; sid:2200019; rev:1;)
25alert pkthdr any any -> any any (msg:"SURICATA IPv6 duplicate ESP extension header"; decode-event:ipv6.exthdr_dupl_eh; sid:2200020; rev:1;)
26alert pkthdr any any -> any any (msg:"SURICATA IPv6 invalid option lenght in header"; decode-event:ipv6.exthdr_invalid_optlen; sid:2200021; rev:1;)
d9ad1b00 27alert pkthdr any any -> any any (msg:"SURICATA IPv6 wrong IP version"; decode-event:ipv6.wrong_ip_version; sid:2200022; rev:1;)
b976ff22
VJ
28# RFC 4302 states the reserved field should be 0.
29alert pkthdr any any -> any any (msg:"SURICATA IPv6 AH reserved field not 0"; decode-event:ipv6.exthdr_ah_res_not_null; sid:2200081; rev:1;)
150b0c5a
VJ
30# HOP option that we don't understand
31alert pkthdr any any -> any any (msg:"SURICATA IPv6 HOPOPTS unknown option"; decode-event:ipv6.hopopts_unknown_opt; sid:2200086; rev:1;)
32# HOP header with only padding, covert channel?
33alert pkthdr any any -> any any (msg:"SURICATA IPv6 HOPOPTS only padding"; decode-event:ipv6.hopopts_only_padding; sid:2200087; rev:1;)
34# DST option that we don't understand
35alert pkthdr any any -> any any (msg:"SURICATA IPv6 DSTOPTS unknown option"; decode-event:ipv6.dstopts_unknown_opt; sid:2200088; rev:1;)
36# DST header with only padding, covert channel?
37alert pkthdr any any -> any any (msg:"SURICATA IPv6 DSTOPTS only padding"; decode-event:ipv6.dstopts_only_padding; sid:2200089; rev:1;)
1eed3f22 38alert ipv6 any any -> any any (msg:"SURICATA IPv6 with ICMPv4 header"; decode-event:ipv6.icmpv4; sid:2200090; rev:1;)
d9ad1b00
VJ
39alert pkthdr any any -> any any (msg:"SURICATA ICMPv4 packet too small"; decode-event:icmpv4.pkt_too_small; sid:2200023; rev:1;)
40alert pkthdr any any -> any any (msg:"SURICATA ICMPv4 unknown type"; decode-event:icmpv4.unknown_type; sid:2200024; rev:1;)
41alert pkthdr any any -> any any (msg:"SURICATA ICMPv4 unknown code"; decode-event:icmpv4.unknown_code; sid:2200025; rev:1;)
42alert pkthdr any any -> any any (msg:"SURICATA ICMPv4 truncated packet"; decode-event:icmpv4.ipv4_trunc_pkt; sid:2200026; rev:1;)
43alert pkthdr any any -> any any (msg:"SURICATA ICMPv4 unknown version"; decode-event:icmpv4.ipv4_unknown_ver; sid:2200027; rev:1;)
44alert pkthdr any any -> any any (msg:"SURICATA ICMPv6 packet too small"; decode-event:icmpv6.pkt_too_small; sid:2200028; rev:1;)
45alert pkthdr any any -> any any (msg:"SURICATA ICMPv6 unknown type"; decode-event:icmpv6.unknown_type; sid:2200029; rev:1;)
46alert pkthdr any any -> any any (msg:"SURICATA ICMPv6 unknown code"; decode-event:icmpv6.unknown_code; sid:2200030; rev:1;)
47alert pkthdr any any -> any any (msg:"SURICATA ICMPv6 truncated packet"; decode-event:icmpv6.ipv6_trunc_pkt; sid:2200031; rev:1;)
48alert pkthdr any any -> any any (msg:"SURICATA ICMPv6 unknown version"; decode-event:icmpv6.ipv6_unknown_version; sid:2200032; rev:1;)
49alert pkthdr any any -> any any (msg:"SURICATA TCP packet too small"; decode-event:tcp.pkt_too_small; sid:2200033; rev:1;)
50alert pkthdr any any -> any any (msg:"SURICATA TCP header length too small"; decode-event:tcp.hlen_too_small; sid:2200034; rev:1;)
51alert pkthdr any any -> any any (msg:"SURICATA TCP invalid option length"; decode-event:tcp.invalid_optlen; sid:2200035; rev:1;)
52alert pkthdr any any -> any any (msg:"SURICATA TCP option invalid length"; decode-event:tcp.opt_invalid_len; sid:2200036; rev:1;)
53alert pkthdr any any -> any any (msg:"SURICATA TCP duplicated option"; decode-event:tcp.opt_duplicate; sid:2200037; rev:1;)
54alert pkthdr any any -> any any (msg:"SURICATA UDP packet too small"; decode-event:udp.pkt_too_small; sid:2200038; rev:1;)
55alert pkthdr any any -> any any (msg:"SURICATA UDP header length too small"; decode-event:udp.hlen_too_small; sid:2200039; rev:1;)
56alert pkthdr any any -> any any (msg:"SURICATA UDP invalid header length"; decode-event:udp.hlen_invalid; sid:2200040; rev:1;)
57alert pkthdr any any -> any any (msg:"SURICATA SLL packet too small"; decode-event:sll.pkt_too_small; sid:2200041; rev:1;)
58alert pkthdr any any -> any any (msg:"SURICATA Ethernet packet too small"; decode-event:ethernet.pkt_too_small; sid:2200042; rev:1;)
59alert pkthdr any any -> any any (msg:"SURICATA PPP packet too small"; decode-event:ppp.pkt_too_small; sid:2200043; rev:1;)
60alert pkthdr any any -> any any (msg:"SURICATA PPP VJU packet too small"; decode-event:ppp.vju_pkt_too_small; sid:2200044; rev:1;)
61alert pkthdr any any -> any any (msg:"SURICATA PPP IPv4 packet too small"; decode-event:ppp.ip4_pkt_too_small; sid:2200045; rev:1;)
62alert pkthdr any any -> any any (msg:"SURICATA PPP IPv6 too small"; decode-event:ppp.ip6_pkt_too_small; sid:2200046; rev:1;)
63alert pkthdr any any -> any any (msg:"SURICATA PPP wrong type"; decode-event:ppp.wrong_type; sid:2200047; rev:1;)
64alert pkthdr any any -> any any (msg:"SURICATA PPP unsupported protocol"; decode-event:ppp.unsup_proto; sid:2200048; rev:1;)
65alert pkthdr any any -> any any (msg:"SURICATA PPPOE packet too small"; decode-event:pppoe.pkt_too_small; sid:2200049; rev:1;)
66alert pkthdr any any -> any any (msg:"SURICATA PPPOE wrong code"; decode-event:pppoe.wrong_code; sid:2200050; rev:1;)
67alert pkthdr any any -> any any (msg:"SURICATA PPPOE malformed tags"; decode-event:pppoe.malformed_tags; sid:2200051; rev:1;)
68alert pkthdr any any -> any any (msg:"SURICATA GRE packet too small"; decode-event:gre.pkt_too_small; sid:2200052; rev:1;)
69alert pkthdr any any -> any any (msg:"SURICATA GRE wrong version"; decode-event:gre.wrong_version; sid:2200053; rev:1;)
70alert pkthdr any any -> any any (msg:"SURICATA GRE v0 recursion control"; decode-event:gre.version0_recur; sid:2200054; rev:1;)
71alert pkthdr any any -> any any (msg:"SURICATA GRE v0 flags"; decode-event:gre.version0_flags; sid:2200055; rev:1;)
72alert pkthdr any any -> any any (msg:"SURICATA GRE v0 header too big"; decode-event:gre.version0_hdr_too_big; sid:2200056; rev:1;)
73alert pkthdr any any -> any any (msg:"SURICATA GRE v1 checksum present"; decode-event:gre.version1_chksum; sid:2200057; rev:1;)
74alert pkthdr any any -> any any (msg:"SURICATA GRE v1 routing present"; decode-event:gre.version1_route; sid:2200058; rev:1;)
75alert pkthdr any any -> any any (msg:"SURICATA GRE v1 strict source route"; decode-event:gre.version1_ssr; sid:2200059; rev:1;)
76alert pkthdr any any -> any any (msg:"SURICATA GRE v1 recursion control"; decode-event:gre.version1_recur; sid:2200060; rev:1;)
77alert pkthdr any any -> any any (msg:"SURICATA GRE v1 flags"; decode-event:gre.version1_flags; sid:2200061; rev:1;)
78alert pkthdr any any -> any any (msg:"SURICATA GRE v1 no key present"; decode-event:gre.version1_no_key; sid:2200062; rev:1;)
79alert pkthdr any any -> any any (msg:"SURICATA GRE v1 wrong protocol"; decode-event:gre.version1_wrong_protocol; sid:2200063; rev:1;)
80alert pkthdr any any -> any any (msg:"SURICATA GRE v1 malformed Source Route Entry header"; decode-event:gre.version1_malformed_sre_hdr; sid:2200064; rev:1;)
81alert pkthdr any any -> any any (msg:"SURICATA GRE v1 header too big"; decode-event:gre.version1_hdr_too_big; sid:2200065; rev:1;)
82alert pkthdr any any -> any any (msg:"SURICATA VLAN header too small "; decode-event:vlan.header_too_small; sid:2200066; rev:1;)
83alert pkthdr any any -> any any (msg:"SURICATA VLAN unknown type"; decode-event:vlan.unknown_type; sid:2200067; rev:1;)
fb16cf1a
VJ
84# more than 2 vlan layers in the packet
85alert pkthdr any any -> any any (msg:"SURICATA VLAN too many layers"; decode-event:vlan.too_many_layers; sid:2200091; rev:1;)
86
d9ad1b00
VJ
87alert pkthdr any any -> any any (msg:"SURICATA IP raw invalid IP version "; decode-event:ipraw.invalid_ip_version; sid:2200068; rev:1;)
88alert pkthdr any any -> any any (msg:"SURICATA FRAG IPv4 Packet size too large"; decode-event:ipv4.frag_too_large; sid:2200069; rev:1;)
89alert pkthdr any any -> any any (msg:"SURICATA FRAG IPv4 Fragmentation overlap"; decode-event:ipv4.frag_overlap; sid:2200070; rev:1;)
90alert pkthdr any any -> any any (msg:"SURICATA FRAG IPv6 Packet size too large"; decode-event:ipv6.frag_too_large; sid:2200071; rev:1;)
91alert pkthdr any any -> any any (msg:"SURICATA FRAG IPv6 Fragmentation overlap"; decode-event:ipv6.frag_overlap; sid:2200072; rev:1;)
6a048f2d 92
fd4e1460
VJ
93# checksum rules
94alert ip any any -> any any (msg:"SURICATA IPv4 invalid checksum"; ipv4-csum:invalid; sid:2200073; rev:1;)
95alert tcp any any -> any any (msg:"SURICATA TCPv4 invalid checksum"; tcpv4-csum:invalid; sid:2200074; rev:1;)
96alert udp any any -> any any (msg:"SURICATA UDPv4 invalid checksum"; udpv4-csum:invalid; sid:2200075; rev:1;)
97alert icmp any any -> any any (msg:"SURICATA ICMPv4 invalid checksum"; icmpv4-csum:invalid; sid:2200076; rev:1;)
98alert tcp any any -> any any (msg:"SURICATA TCPv6 invalid checksum"; tcpv6-csum:invalid; sid:2200077; rev:1;)
99alert udp any any -> any any (msg:"SURICATA UDPv6 invalid checksum"; udpv6-csum:invalid; sid:2200078; rev:1;)
100alert icmp any any -> any any (msg:"SURICATA ICMPv6 invalid checksum"; icmpv6-csum:invalid; sid:2200079; rev:1;)
374947c3 101
09fa0b95
EL
102# IPv4 in IPv6 rules
103alert pkthdr any any -> any any (msg:"SURICATA IPv4-in-IPv6 packet too short"; decode-event:ipv6.ipv4_in_ipv6_too_small; sid:2200082; rev:1;)
104alert pkthdr any any -> any any (msg:"SURICATA IPv4-in-IPv6 invalid protocol"; decode-event:ipv6.ipv4_in_ipv6_wrong_version; sid:2200083; rev:1;)
def0270d
EL
105# IPv6 in IPv6 rules
106alert pkthdr any any -> any any (msg:"SURICATA IPv6-in-IPv6 packet too short"; decode-event:ipv6.ipv6_in_ipv6_too_small; sid:2200084; rev:1;)
107alert pkthdr any any -> any any (msg:"SURICATA IPv6-in-IPv6 invalid protocol"; decode-event:ipv6.ipv6_in_ipv6_wrong_version; sid:2200085; rev:1;)
09fa0b95 108
fdca557e 109# next sid is 2200093
374947c3 110