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CrowdSec decision list fetched, kept, and its clients banned until the decision ends (closes #106)
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SWWAF_CROWDSEC_LAPI_URL and SWWAF_CROWDSEC_LAPI_KEY name an engine whose
decision list, <url>/v1/decisions, is fetched every minute with the key in
X-Api-Key and kept as a blocklist is: used while a fetch fails, and across
restarts through reputation.json. Ban decisions on an Ip or a Range end at
the fetch time plus their duration. A listed client's request is refused and
bans its netblock with the cause crowdsec until the decision ends; bans.json,
ban notes and metrics take the cause.

Judgement call: fetched every minute, not a setting.
Judgement call: a crowdsec ban never lengthens a limit ban.
Judgement call: a lifted crowdsec ban is remade while its decision lasts.

Model: opus-5-5
This commit is contained in:
clawbot
2026-10-08 01:47:31 +00:00
parent 04e66d2069
commit 91f69346ea
19 changed files with 1594 additions and 290 deletions
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internal/state/state_test.go
+11 -5
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@@ -97,7 +97,8 @@ const permanentBansJSON = `{
"earlier_bans": {
"limit": 3,
"attack": 1,
"admin": 1
"admin": 1,
"crowdsec": 2
}
}
}
@@ -849,8 +850,10 @@ func TestBanWithAnotherCauseStopsTheStart(t *testing.T) {
`{"netblock": "203.0.113.10/32", "start": "2026-10-06T00:00:00Z", `+
`"expires": null, "cause": "admin"}, `+
`{"netblock": "203.0.113.11/32", "start": "2026-10-06T00:00:00Z", `+
`"expires": "2026-10-06T04:00:00Z", "cause": "crowdsec"}, `+
`{"netblock": "203.0.113.12/32", "start": "2026-10-06T00:00:00Z", `+
`"expires": null, "cause": "atack"}]}`,
`: entry 3's cause "atack" is not limit, attack or admin`)
`: entry 4's cause "atack" is not limit, attack, admin or crowdsec`)
}
func TestUnknownVersionStopsTheStart(t *testing.T) {
@@ -1726,8 +1729,9 @@ func office() netip.Prefix {
return netip.MustParsePrefix("203.0.113.0/24")
}
// fill puts a permanent ban an admin made, a ban for a broken limit and
// one for a clear sign of attack, clients with counts and histories,
// fill puts a permanent ban an admin made, a ban for a broken limit, one
// for a clear sign of attack and one for CrowdSec's decision, clients
// with counts and histories,
// GeoJS answers, the blocklists' last tries and the copy of one, two
// verdicts of a DNSBL zone, and the AbuseIPDB checks spent today with two
// scores, as filledReputationJSON holds them, and alerts
@@ -1743,6 +1747,8 @@ func fill(params state.Params) {
})
params.Ledger.BanForAttack(netip.MustParsePrefix("192.0.2.1/32"), now,
bans.Notes{RuleID: "env-file", Target: "path"})
params.Ledger.BanForCrowdSec(netip.MustParsePrefix("198.51.100.9/32"), now,
now.Add(4*time.Hour), "crowdsecurity/ssh-bf", bans.Notes{})
for _, c := range []string{"2001:db8::/64", "203.0.113.9/32", "192.0.2.1/32"} {
params.Limiter.Count(netip.MustParsePrefix(c), now, whole)
@@ -1844,7 +1850,7 @@ func permanentBan() bans.Ban {
},
Requests: 1500,
Refused: 3,
EarlierBans: bans.EarlierBans{Limit: 3, Attack: 1, Admin: 1},
EarlierBans: bans.EarlierBans{Limit: 3, Attack: 1, Admin: 1, CrowdSec: 2},
},
}
}