Vulnerabilities > CVE-2014-0710 - Race Condition vulnerability in Cisco Firewall Services Module Software

047910
CVSS 0.0 - NONE
Attack vector
UNKNOWN
Attack complexity
UNKNOWN
Privileges required
UNKNOWN
Confidentiality impact
UNKNOWN
Integrity impact
UNKNOWN
Availability impact
UNKNOWN

Summary

Race condition in the cut-through proxy feature in Cisco Firewall Services Module (FWSM) Software 3.x before 3.2(28) and 4.x before 4.1(15) allows remote attackers to cause a denial of service (device reload) via certain matching traffic, aka Bug ID CSCuj16824.

Vulnerable Configurations

Part Description Count
Application
Cisco
79

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Leveraging Race Conditions
    This attack targets a race condition occurring when multiple processes access and manipulate the same resource concurrently and the outcome of the execution depends on the particular order in which the access takes place. The attacker can leverage a race condition by "running the race", modifying the resource and modifying the normal execution flow. For instance a race condition can occur while accessing a file, the attacker can trick the system by replacing the original file with his version and cause the system to read the malicious file.
  • Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions
    This attack targets a race condition occurring between the time of check (state) for a resource and the time of use of a resource. The typical example is the file access. The attacker can leverage a file access race condition by "running the race", meaning that he would modify the resource between the first time the target program accesses the file and the time the target program uses the file. During that period of time, the attacker could do something such as replace the file and cause an escalation of privilege.

Nessus

NASL familyCISCO
NASL idCISCO-SA-20140219-FWSM.NASL
descriptionThe remote Cisco Firewall Services Module (FWSM) device is affected by a denial of service (DoS) vulnerability due to a flaw in the cut-through proxy function. A remote, unauthenticated attacker could potentially exploit this vulnerability to cause a reload of the affected system, with repeated exploitation leading to a DoS condition.
last seen2019-10-28
modified2014-02-24
plugin id72668
published2014-02-24
reporterThis script is Copyright (C) 2014-2018 Tenable Network Security, Inc.
sourcehttps://www.tenable.com/plugins/nessus/72668
titleCisco Firewall Services Module Software Denial of Service (cisco-sa-20140219-fwsm)
code
#TRUSTED 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
#
# (C) Tenable Network Security, Inc.
#


include("compat.inc");


if (description)
{
  script_id(72668);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2018/11/15");

  script_cve_id("CVE-2014-0710");
  script_bugtraq_id(65662);
  script_xref(name:"CISCO-BUG-ID", value:"CSCuj16824");
  script_xref(name:"IAVA", value:"2014-A-0031");
  script_xref(name:"CISCO-SA", value:"cisco-sa-20140219-fwsm");

  script_name(english:"Cisco Firewall Services Module Software Denial of Service (cisco-sa-20140219-fwsm)");
  script_summary(english:"Checks the FWSM version");

  script_set_attribute(attribute:"synopsis", value:"The remote device is missing a vendor-supplied security update.");
  script_set_attribute(
    attribute:"description",
    value:
"The remote Cisco Firewall Services Module (FWSM) device is affected by
a denial of service (DoS) vulnerability due to a flaw in the cut-through
proxy function.  A remote, unauthenticated attacker could potentially
exploit this vulnerability to cause a reload of the affected system,
with repeated exploitation leading to a DoS condition."
  );
  # https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20140219-fwsm
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ee45dacd");
  script_set_attribute(
    attribute:"solution",
    value:
"Apply the relevant patch referenced in Cisco Security Advisory
cisco-sa-20140219-fwsm."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2014/02/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2013/10/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/02/24");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:cisco:firewall_services_module");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"CISCO");

  script_copyright(english:"This script is Copyright (C) 2014-2018 Tenable Network Security, Inc.");

  script_dependencies("cisco_fwsm_version.nasl");
  script_require_keys("Host/Cisco/FWSM/Version");

  exit(0);
}

include("audit.inc");
include("cisco_func.inc");
include("cisco_kb_cmd_func.inc");

version = get_kb_item_or_exit("Host/Cisco/FWSM/Version");

flag = 0;
fixed_version = "";
local_checks = 0;

# prepare for local checks if possible
if (get_kb_item("Host/local_checks_enabled"))
{
  local_checks = 1;
}

if ( (version =~ "^3\.1(\.|\()") && (cisco_gen_ver_compare(a:version, b:"3.1(21)") > 0) )
{
  flag++;
  fixed_version = "3.2.x or later";
}

if ( (version =~ "^3\.2(\.|\()") && (cisco_gen_ver_compare(a:version, b:"3.2(28)") < 0) && (cisco_gen_ver_compare(a:version, b:"3.2(21)") > 0))
{
  flag++;
  fixed_version = "3.2(28)";
}

if (version =~ "^4\.0($|\.|\()" && (cisco_gen_ver_compare(a:version, b:"4.0(16)") > 0))
{
  flag++;
  fixed_version = "4.1 or later";
}

if ( (version =~ "^4\.1($|\.|\()") && (cisco_gen_ver_compare(a:version, b:"4.1(15)") < 0) && (cisco_gen_ver_compare(a:version, b:"4.1(6)") > 0))
{
  flag++;
  fixed_version = "4.1(15)";
}

if ( local_checks )
{
  if (flag)
  {
    flag = 0;
    buf = cisco_command_kb_item(
      "Host/Cisco/Config/show_running-config_aaa_authentication",
      "show running-config aaa authentication| include match|include"
    );
    if (check_cisco_result(buf)) flag = 1;
  }
}

if (flag)
{
  if (report_verbosity > 0)
  {
    report =
      '\n  Installed version : ' + version +
      '\n  Fixed version     : ' + fixed_version;
    security_hole(port:0, extra:report);
  }
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");

Seebug

bulletinFamilyexploit
descriptionBugtraq ID:65662 CVE ID:CVE-2014-0710 Cisco Firewall Services Module是一款多个cisco产品上使用的防火墙服务模块。 Cisco Catalyst 6500 Series Switches和Cisco 7600 Series Routers上的Cisco FWSM软件所包含的cut-through代理功能在释放内存时存在竞争条件错误,允许远程攻击者发送特殊的能触发cut-through代理验证条件的通信,可使受影响设备重载,造成拒绝服务攻击。 0 Cisco Firewall Services Module Cisco Catalyst 6500 Series Switches Cisco 7600 Series Routers 厂商补丁: Cisco ----- Cisco Firewall Services Module 3.1(21), 3.2(21), 4.0(16)和4.1(6)已经修复该漏洞,建议用户下载更新: http://www.cisco.com/public/sw-center/
idSSV:61510
last seen2017-11-19
modified2014-02-21
published2014-02-21
reporterRoot
titleCisco Firewall Services模块Cut-Through Proxy远程拒绝服务漏洞