Mercurial > prosody-modules
annotate mod_tls_policy/mod_tls_policy.lua @ 3216:5d35e6b409e0
mod_http_upload_external: share.php: Use hash_equals() if available to protect against timing attack
author | Matthew Wild <mwild1@gmail.com> |
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date | Tue, 07 Aug 2018 19:12:52 +0100 |
parents | a43ed0d28918 |
children | 1b701f208b1b |
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mod_tls_policy: New module to enforce per-host TLS parameter policies
Kim Alvefur <zash@zash.se>
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1 |
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2 assert(require"ssl.core".info, "Incompatible LuaSec version"); |
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3 |
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4 local function hook(event_name, typ, policy) |
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5 if not policy then return end |
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6 if policy == "FS" then |
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mod_tls_policy: Change the FS shortcut to match on ciphers with (EC)DHE (produces nicer stream error)
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7 policy = { cipher = "^E?C?DHE%-" }; |
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8 elseif type(policy) == "string" then |
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9 policy = { cipher = policy }; |
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10 end |
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11 |
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12 module:hook(event_name, function (event) |
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13 local origin = event.origin; |
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14 if origin.encrypted then |
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15 local info = origin.conn:socket():info(); |
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16 for key, what in pairs(policy) do |
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17 module:log("debug", "Does info[%q] = %s match %s ?", key, tostring(info[key]), tostring(what)); |
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mod_tls_policy: Fix pattern matching
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18 if (type(what) == "number" and what < info[key] ) or (type(what) == "string" and not info[key]:match(what)) then |
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mod_tls_policy: Include which part of the cipher that did not match the policy in stream error
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19 origin:close({ condition = "policy-violation", text = ("TLS %s '%s' not acceptable"):format(key, tostring(info[key])) }); |
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20 return false; |
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21 end |
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22 module:log("debug", "Seems so"); |
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23 end |
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24 module:log("debug", "Policy matches"); |
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25 end |
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26 end, 1000); |
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27 end |
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28 |
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29 local policy = module:get_option(module.name, {}); |
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30 |
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31 if type(policy) == "string" then |
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32 policy = { c2s = policy, s2s = policy }; |
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33 end |
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34 |
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35 hook("stream-features", "c2s", policy.c2s); |
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36 hook("s2s-stream-features", "s2sin", policy.s2sin or policy.s2s); |
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37 hook("stanza/http://etherx.jabber.org/streams:features", "s2sout", policy.s2sout or policy.s2s); |