Multiple F5 Networks Products - ConfigSync IP Rsync full file system access vulnerability CVE-2014-2927 - Active Check

# SPDX-FileCopyrightText: 2015 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

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.105172");
  script_cve_id("CVE-2014-2927");
  script_tag(name:"cvss_base", value:"9.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_version("2024-06-28T15:38:46+0000");
  script_name("Multiple F5 Networks Products - ConfigSync IP Rsync full file system access vulnerability CVE-2014-2927 - Active Check");
  script_tag(name:"last_modification", value:"2024-06-28 15:38:46 +0000 (Fri, 28 Jun 2024)");
  script_tag(name:"creation_date", value:"2015-01-19 11:51:31 +0100 (Mon, 19 Jan 2015)");
  script_category(ACT_ATTACK);
  script_family("Gain a shell remotely");
  script_copyright("Copyright (C) 2015 Greenbone AG");
  script_dependencies("rsync_modules.nasl");
  script_require_ports("Services/rsync", 873);
  script_mandatory_keys("rsync/modules_in_kb");

  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/69461");
  script_xref(name:"URL", value:"https://my.f5.com/manage/s/article/K15236");

  script_tag(name:"summary", value:"Multiple F5 Networks Products are prone to a remote code
  execution (RCE) vulnerability.");

  script_tag(name:"vuldetect", value:"Tries to read the /VERSION file via a rsync request.");

  script_tag(name:"insight", value:"An open Rsync configuration for the ConfigSync IP address allows
  for remote read/write file system access.");

  script_tag(name:"impact", value:"An attacker can exploit this issue to execute arbitrary code
  within the context of the application.");

  script_tag(name:"affected", value:"F5 BIG-IP 11.6 before 11.6.0, 11.5.1 before HF3, 11.5.0 before
  HF4, 11.4.1 before HF4, 11.4.0 before HF7, 11.3.0 before HF9, and 11.2.1 before HF11.

  Enterprise Manager 3.x before 3.1.1 HF2.");

  script_tag(name:"solution", value:"Disable the rsync daemon or update to a fixed version listed at
  the referenced vendor advisory.");

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

  exit(0);
}

include("string_hex_func.inc");
include("port_service_func.inc");
include("byte_func.inc");
include("rsync_func.inc");

port = rsync_get_port( default:873 );

if( ! modules = get_kb_item( "rsync/" + port + "/modules" ) )
  exit( 0 );

if( "csync" >< modules ) {
  module = "csync";
} else if( "cmi" >< modules ) {
  module = "cmi";
}

if( ! module )
  exit( 0 );

if( ! soc = rsync_connect( port:port ) )
  exit( 0 );

buf = rsync_get_file( soc:soc, module:module, file:"VERSION" );
close( soc );

if( "Product: BIG-IQ" >< buf || "Product: BIG-IP" >< buf || "Product: EM" >< buf ) {
  report = 'It was possible to download the VERSION file from the remote host via the ' + module + ' module:\n\n' + buf;
  security_message( port:port, data:report );
  exit( 0 );
}

exit( 99 );