Cisco IOS Software Session Initiation Protocol Denial of Service Vulnerabilities (cisco-sa-20110928-sip)

#TRUSTED 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
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Cisco Security Advisory cisco-sa-20110928-sip.
# The text itself is copyright (C) Cisco
#

include("compat.inc");

if (description)
{
  script_id(56319);
  script_version("1.19");
  script_set_attribute(attribute:"plugin_modification_date", value:"2018/11/15");

  script_cve_id("CVE-2011-0939", "CVE-2011-2072", "CVE-2011-3275");
  script_xref(name:"CISCO-BUG-ID", value:"CSCth03022");
  script_xref(name:"CISCO-BUG-ID", value:"CSCti48504");
  script_xref(name:"CISCO-BUG-ID", value:"CSCto88686");
  script_xref(name:"CISCO-SA", value:"cisco-sa-20110928-sip");

  script_name(english:"Cisco IOS Software Session Initiation Protocol Denial of Service Vulnerabilities (cisco-sa-20110928-sip)");
  script_summary(english:"Checks the IOS version.");

  script_set_attribute(
    attribute:"synopsis",
    value:"The remote device is missing a vendor-supplied security patch."
  );
  script_set_attribute(
    attribute:"description",
    value:
"Multiple vulnerabilities exist in the Session Initiation Protocol
(SIP) implementation in Cisco IOS Software and Cisco IOS XE Software
that could allow an unauthenticated, remote attacker to cause a reload
of an affected device or trigger memory leaks that may result in
system instabilities. Affected devices would need to be configured to
process SIP messages for these vulnerabilities to be exploitable.
Cisco has released free software updates that address these
vulnerabilities. There are no workarounds for devices that must run
SIP; however, mitigations are available to limit exposure to the
vulnerabilities."
  );
  # https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20110928-sip
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?45664e69"
  );
  script_set_attribute(
    attribute:"solution",
    value:
"Apply the relevant patch referenced in Cisco Security Advisory
cisco-sa-20110928-sip."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:ios");

  script_set_attribute(attribute:"vuln_publication_date", value:"2011/09/28");
  script_set_attribute(attribute:"patch_publication_date", value:"2012/09/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2011/09/29");

  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2011-2018 Tenable Network Security, Inc.");
  script_family(english:"CISCO");

  script_dependencies("cisco_ios_version.nasl");
  script_require_keys("Host/Cisco/IOS/Version");

  exit(0);
}



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

flag = 0;
override = 0;

version = get_kb_item_or_exit("Host/Cisco/IOS/Version");
if ( version == '12.2(33)XNE' ) flag++;
if ( version == '12.2(33)XNE1' ) flag++;
if ( version == '12.2(33)XNE1xb' ) flag++;
if ( version == '12.2(33)XNE2' ) flag++;
if ( version == '12.2(33)XNF' ) flag++;
if ( version == '12.2(33)XNF1' ) flag++;
if ( version == '12.2(33)XNF2' ) flag++;
if ( version == '12.4(11)MR' ) flag++;
if ( version == '12.4(11)T' ) flag++;
if ( version == '12.4(11)T1' ) flag++;
if ( version == '12.4(11)T2' ) flag++;
if ( version == '12.4(11)T3' ) flag++;
if ( version == '12.4(11)T4' ) flag++;
if ( version == '12.4(11)XJ' ) flag++;
if ( version == '12.4(11)XJ1' ) flag++;
if ( version == '12.4(11)XJ2' ) flag++;
if ( version == '12.4(11)XJ3' ) flag++;
if ( version == '12.4(11)XJ4' ) flag++;
if ( version == '12.4(11)XJ5' ) flag++;
if ( version == '12.4(11)XJ6' ) flag++;
if ( version == '12.4(11)XV' ) flag++;
if ( version == '12.4(11)XV1' ) flag++;
if ( version == '12.4(11)XW' ) flag++;
if ( version == '12.4(11)XW1' ) flag++;
if ( version == '12.4(11)XW10' ) flag++;
if ( version == '12.4(11)XW2' ) flag++;
if ( version == '12.4(11)XW3' ) flag++;
if ( version == '12.4(11)XW4' ) flag++;
if ( version == '12.4(11)XW5' ) flag++;
if ( version == '12.4(11)XW6' ) flag++;
if ( version == '12.4(11)XW7' ) flag++;
if ( version == '12.4(11)XW8' ) flag++;
if ( version == '12.4(11)XW9' ) flag++;
if ( version == '12.4(12)MR' ) flag++;
if ( version == '12.4(12)MR1' ) flag++;
if ( version == '12.4(12)MR2' ) flag++;
if ( version == '12.4(15)T' ) flag++;
if ( version == '12.4(15)T1' ) flag++;
if ( version == '12.4(15)T10' ) flag++;
if ( version == '12.4(15)T11' ) flag++;
if ( version == '12.4(15)T12' ) flag++;
if ( version == '12.4(15)T13' ) flag++;
if ( version == '12.4(15)T13b' ) flag++;
if ( version == '12.4(15)T14' ) flag++;
if ( version == '12.4(15)T15' ) flag++;
if ( version == '12.4(15)T2' ) flag++;
if ( version == '12.4(15)T3' ) flag++;
if ( version == '12.4(15)T4' ) flag++;
if ( version == '12.4(15)T5' ) flag++;
if ( version == '12.4(15)T6' ) flag++;
if ( version == '12.4(15)T6a' ) flag++;
if ( version == '12.4(15)T7' ) flag++;
if ( version == '12.4(15)T8' ) flag++;
if ( version == '12.4(15)T9' ) flag++;
if ( version == '12.4(15)XL' ) flag++;
if ( version == '12.4(15)XL1' ) flag++;
if ( version == '12.4(15)XL2' ) flag++;
if ( version == '12.4(15)XL3' ) flag++;
if ( version == '12.4(15)XL4' ) flag++;
if ( version == '12.4(15)XL5' ) flag++;
if ( version == '12.4(15)XM1' ) flag++;
if ( version == '12.4(15)XM2' ) flag++;
if ( version == '12.4(15)XY' ) flag++;
if ( version == '12.4(15)XY1' ) flag++;
if ( version == '12.4(15)XY2' ) flag++;
if ( version == '12.4(15)XY3' ) flag++;
if ( version == '12.4(15)XY4' ) flag++;
if ( version == '12.4(15)XY5' ) flag++;
if ( version == '12.4(15)XZ' ) flag++;
if ( version == '12.4(15)XZ1' ) flag++;
if ( version == '12.4(15)XZ2' ) flag++;
if ( version == '12.4(16)MR' ) flag++;
if ( version == '12.4(16)MR1' ) flag++;
if ( version == '12.4(16)MR2' ) flag++;
if ( version == '12.4(19)MR' ) flag++;
if ( version == '12.4(19)MR1' ) flag++;
if ( version == '12.4(19)MR2' ) flag++;
if ( version == '12.4(20)MR' ) flag++;
if ( version == '12.4(20)MR2' ) flag++;
if ( version == '12.4(20)MRA' ) flag++;
if ( version == '12.4(20)MRA1' ) flag++;
if ( version == '12.4(20)MRB' ) flag++;
if ( version == '12.4(20)MRB1' ) flag++;
if ( version == '12.4(20)T' ) flag++;
if ( version == '12.4(20)T1' ) flag++;
if ( version == '12.4(20)T2' ) flag++;
if ( version == '12.4(20)T3' ) flag++;
if ( version == '12.4(20)T4' ) flag++;
if ( version == '12.4(20)T5' ) flag++;
if ( version == '12.4(20)T5a' ) flag++;
if ( version == '12.4(20)T6' ) flag++;
if ( version == '12.4(20)YA' ) flag++;
if ( version == '12.4(20)YA1' ) flag++;
if ( version == '12.4(20)YA2' ) flag++;
if ( version == '12.4(20)YA3' ) flag++;
if ( version == '12.4(22)GC1' ) flag++;
if ( version == '12.4(22)GC1a' ) flag++;
if ( version == '12.4(22)T' ) flag++;
if ( version == '12.4(22)T1' ) flag++;
if ( version == '12.4(22)T2' ) flag++;
if ( version == '12.4(22)T3' ) flag++;
if ( version == '12.4(22)T4' ) flag++;
if ( version == '12.4(22)T5' ) flag++;
if ( version == '12.4(22)T6' ) flag++;
if ( version == '12.4(22)YB' ) flag++;
if ( version == '12.4(22)YB1' ) flag++;
if ( version == '12.4(22)YB4' ) flag++;
if ( version == '12.4(22)YB5' ) flag++;
if ( version == '12.4(22)YB6' ) flag++;
if ( version == '12.4(22)YB7' ) flag++;
if ( version == '12.4(22)YB8' ) flag++;
if ( version == '12.4(24)GC1' ) flag++;
if ( version == '12.4(24)GC3' ) flag++;
if ( version == '12.4(24)GC3a' ) flag++;
if ( version == '12.4(24)T' ) flag++;
if ( version == '12.4(24)T1' ) flag++;
if ( version == '12.4(24)T2' ) flag++;
if ( version == '12.4(24)T3' ) flag++;
if ( version == '12.4(24)T4' ) flag++;
if ( version == '12.4(24)T5' ) flag++;
if ( version == '12.4(4)XC' ) flag++;
if ( version == '12.4(4)XC1' ) flag++;
if ( version == '12.4(4)XC2' ) flag++;
if ( version == '12.4(4)XC3' ) flag++;
if ( version == '12.4(4)XC4' ) flag++;
if ( version == '12.4(4)XC5' ) flag++;
if ( version == '12.4(4)XC6' ) flag++;
if ( version == '12.4(4)XC7' ) flag++;
if ( version == '12.4(6)XE' ) flag++;
if ( version == '12.4(6)XE1' ) flag++;
if ( version == '12.4(6)XE2' ) flag++;
if ( version == '12.4(6)XE3' ) flag++;
if ( version == '12.4(9)MR' ) flag++;
if ( version == '12.4(9)T' ) flag++;
if ( version == '12.4(9)T0a' ) flag++;
if ( version == '12.4(9)T1' ) flag++;
if ( version == '12.4(9)T2' ) flag++;
if ( version == '12.4(9)T3' ) flag++;
if ( version == '12.4(9)T4' ) flag++;
if ( version == '12.4(9)T5' ) flag++;
if ( version == '12.4(9)T6' ) flag++;
if ( version == '12.4(9)T7' ) flag++;
if ( version == '12.4(9)XG2' ) flag++;
if ( version == '15.0(1)M' ) flag++;
if ( version == '15.0(1)M1' ) flag++;
if ( version == '15.0(1)M2' ) flag++;
if ( version == '15.0(1)M3' ) flag++;
if ( version == '15.0(1)M4' ) flag++;
if ( version == '15.0(1)M5' ) flag++;
if ( version == '15.0(1)M6' ) flag++;
if ( version == '15.0(1)S' ) flag++;
if ( version == '15.0(1)S1' ) flag++;
if ( version == '15.0(1)S2' ) flag++;
if ( version == '15.0(1)S3' ) flag++;
if ( version == '15.0(1)XA' ) flag++;
if ( version == '15.0(1)XA1' ) flag++;
if ( version == '15.0(1)XA2' ) flag++;
if ( version == '15.0(1)XA3' ) flag++;
if ( version == '15.0(1)XA4' ) flag++;
if ( version == '15.0(1)XA5' ) flag++;
if ( version == '15.0(1s)S2' ) flag++;
if ( version == '15.1(1)S' ) flag++;
if ( version == '15.1(1)S1' ) flag++;
if ( version == '15.1(1)T' ) flag++;
if ( version == '15.1(1)T1' ) flag++;
if ( version == '15.1(1)T2' ) flag++;
if ( version == '15.1(1)T3' ) flag++;
if ( version == '15.1(1)XB' ) flag++;
if ( version == '15.1(1)XB1' ) flag++;
if ( version == '15.1(1)XB2' ) flag++;
if ( version == '15.1(1)XB3' ) flag++;
if ( version == '15.1(2)GC' ) flag++;
if ( version == '15.1(2)GC1' ) flag++;
if ( version == '15.1(2)S' ) flag++;
if ( version == '15.1(2)S1' ) flag++;
if ( version == '15.1(2)T' ) flag++;
if ( version == '15.1(2)T0a' ) flag++;
if ( version == '15.1(2)T1' ) flag++;
if ( version == '15.1(2)T2' ) flag++;
if ( version == '15.1(2)T2a' ) flag++;
if ( version == '15.1(2)T3' ) flag++;
if ( version == '15.1(3)T' ) flag++;
if ( version == '15.1(3)T1' ) flag++;
if ( version == '15.1(4)M' ) flag++;
if ( version == '15.1(4)M0a' ) flag++;
if ( version == '15.1(4)M0b' ) flag++;
if ( version == '15.1(4)XB4' ) flag++;
if (get_kb_item("Host/local_checks_enabled"))
{
  if (flag)
  {
    flag = 0;
    buf = cisco_command_kb_item("Host/Cisco/Config/show_processes", "show processes");
    if (check_cisco_result(buf))
    {
      if (preg(pattern:"SIP", multiline:TRUE, string:buf)) { flag = 1; }
    } else if (cisco_needs_enable(buf)) { flag = 1; override = 1; }
  }
}



if (flag)
{
  security_hole(port:0, extra:cisco_caveat(override));
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");