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Use binary strings, not hex strings, as keys in ssl-known-key.

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This commit is contained in:
david
2012-08-16 10:51:51 +00:00
parent 600ef58aa0
commit 7ebf300c0c
1 changed files with 9 additions and 16 deletions
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25
scripts/ssl-known-key.nse
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@@ -44,16 +44,6 @@ categories = {"safe", "discovery", "vuln", "default"}
local FINGERPRINT_FILE = "ssl-fingerprints"
local get_fingerprints = function(path)
local pretty = function(key)
local s = key:sub(1, 2)
for i = 3, 40, 2 do
s = s .. ":" .. key:sub(i, i + 1)
end
return s:upper()
end
-- Check registry for cached fingerprints.
if nmap.registry.ssl_fingerprints then
stdnse.print_debug(2, "Using cached SSL fingerprints.")
@@ -88,12 +78,16 @@ local get_fingerprints = function(path)
section = line
elseif section ~= nil then
-- Add fingerprint to section.
line = pretty(line)
stdnse.print_debug(4, "Added key %s to database.", line)
fingerprints[line] = section
local fingerprint = bin.pack("H", line)
if #fingerprint == 20 then
fingerprints[fingerprint] = section
stdnse.print_debug(4, "Added key %s to database.", line)
else
stdnse.print_debug(0, "Cannot parse presumed fingerprint %q in section %q.", line, section)
end
else
-- Key found outside of section.
stdnse.print_debug(1, "Key %s is not in a section.", pretty(line))
stdnse.print_debug(1, "Key %s is not in a section.", line)
end
end
end
@@ -128,8 +122,7 @@ action = function(host, port)
local fingerprint_fmt = stdnse.tohex(fingerprint, {separator=" ", group=4})
-- Check SSL fingerprint against database.
local key = stdnse.tohex(fingerprint, {separator=":", group=2}):upper()
local section = fingerprints[key]
local section = fingerprints[fingerprint]
if not section then
stdnse.print_debug(2, "%s was not in the database.", fingerprint_fmt)
return