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local anyconnect = require('anyconnect')
local shortport = require('shortport')
local vulns = require('vulns')
local sslcert = require('sslcert')
local stdnse = require "stdnse"
description = [[
Detects whether the Cisco ASA appliance is vulnerable to the Cisco ASA SIP
Denial of Service Vulnerability (CVE-2014-2129).
]]
---
-- @see http-vuln-cve2014-2126.nse
-- @see http-vuln-cve2014-2127.nse
-- @see http-vuln-cve2014-2128.nse
--
-- @usage
-- nmap -p 443 --script http-vuln-cve2014-2129 <target>
--
-- @output
-- PORT STATE SERVICE
-- 443/tcp open https
-- | http-vuln-cve2014-2129:
-- | VULNERABLE:
-- | Cisco ASA SIP Denial of Service Vulnerability
-- | State: VULNERABLE
-- | Risk factor: High CVSSv2: 7.1 (HIGH) (AV:N/AC:M/AU:N/C:N/I:N/A:C)
-- | Description:
-- | The SIP inspection engine in Cisco Adaptive Security Appliance (ASA) Software 8.2 before 8.2(5.48), 8.4 before 8.4(6.5), 9.0 before 9.0(3.1), and 9.1 before 9.1(2.5) allows remote attackers to cause a denial of service (memory consumption or device reload) via crafted SIP packets, aka Bug ID CSCuh44052.
-- |
-- | References:
-- | http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20140409-asa
-- |_ http://cvedetails.com/cve/2014-2129/
author = "Patrik Karlsson <patrik@cqure.net>"
license = "Same as Nmap--See https://nmap.org/book/man-legal.html"
categories = {"vuln", "safe"}
portrule = function(host, port)
return shortport.ssl(host, port) or sslcert.isPortSupported(port)
end
action = function(host, port)
local vuln_table = {
title = "Cisco ASA SIP Denial of Service Vulnerability",
state = vulns.STATE.NOT_VULN,
risk_factor = "High",
scores = {
CVSSv2 = "7.1 (HIGH) (AV:N/AC:M/AU:N/C:N/I:N/A:C)",
},
description = [[
The SIP inspection engine in Cisco Adaptive Security Appliance (ASA) Software 8.2 before 8.2(5.48), 8.4 before 8.4(6.5), 9.0 before 9.0(3.1), and 9.1 before 9.1(2.5) allows remote attackers to cause a denial of service (memory consumption or device reload) via crafted SIP packets, aka Bug ID CSCuh44052.
]],
references = {
'http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20140409-asa',
'http://cvedetails.com/cve/2014-2129/'
}
}
local vuln_versions = {
['8'] = {
['2'] = 5.48,
['4'] = 6.5,
},
['9'] = {
['0'] = 3.1,
['1'] = 2.5,
},
}
local report = vulns.Report:new(SCRIPT_NAME, host, port)
local ac = anyconnect.Cisco.AnyConnect:new(host, port)
local status, err = ac:connect()
if not status then
return stdnse.format_output(false, err)
else
local ver = ac:get_version()
if vuln_versions[ver['major']] and vuln_versions[ver['major']][ver['minor']] then
if vuln_versions[ver['major']][ver['minor']] > tonumber(ver['rev']) then
vuln_table.state = vulns.STATE.VULN
end
end
end
return report:make_output(vuln_table)
end
|
