Vulnerabilities > CVE-2019-12259 - NULL Pointer Dereference vulnerability in multiple products

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(127109);
  script_version("1.4");
  script_cvs_date("Date: 2019/10/18 23:14:15");

  script_cve_id(
    "CVE-2019-12255",
    "CVE-2019-12256",
    "CVE-2019-12257",
    "CVE-2019-12258",
    "CVE-2019-12259",
    "CVE-2019-12260",
    "CVE-2019-12261",
    "CVE-2019-12262",
    "CVE-2019-12263",
    "CVE-2019-12264",
    "CVE-2019-12265"
  );
  script_xref(name:"IAVA", value:"2019-A-0274");

  script_name(english:"Xerox WorkCentre Multiple Vulnerabilities (XRX19-016) (URGENT/11)");
  script_summary(english:"Checks system software version of Xerox WorkCentre devices.");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version, the remote Xerox WorkCentre
is  affected by multiple remote code execution and denial-of-service
vulnerabilities in the IPnet TCP/IP stack. An unauthenticated, remote,
attacker could leverage these vulnerabilities to gain full access to
the affected device or to cause the device to become unresponsive.");
  # https://securitydocs.business.xerox.com/wp-content/uploads/2019/07/cert_XRX19-016.pdf
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?94116ec1");
  script_set_attribute(attribute:"see_also", value:"https://armis.com/urgent11/");
  script_set_attribute(attribute:"solution", value:
"Apply the appropriate update as described in the Xerox
security bulletin in the referenced URL.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-12262");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/07/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/07/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/07/29");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:xerox:workcentre");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("xerox_workcentre_detect.nasl");
  script_require_keys("www/xerox_workcentre", "www/xerox_workcentre/model", "www/xerox_workcentre/ssw");

  exit(0);
}

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

# Get model and system software version
model = get_kb_item_or_exit("www/xerox_workcentre/model");
ver = get_kb_item_or_exit("www/xerox_workcentre/ssw");
ctrl = get_kb_item_or_exit("www/xerox_workcentre/ess");
vuln = FALSE;

ctrl_append = "367972v2";

if (model =~ "^58(45|55|65|75|90)$")
{
  less_or_equal = "072.190.165.14201";
  great_or_equal = "073.190.035.24100";
  fix = "072.190.196.34301";
}
else if (model =~ "^78(45|55)$")
{
  less_or_equal = "072.040.165.14201";
  great_or_equal = "073.040.035.24100";
  fix = "072.040.196.34301";
}
else
  audit(AUDIT_HOST_NOT, "an affected Xerox WorkCentre model");

if (
      ver_compare(ver:ver, fix:less_or_equal, strict:FALSE) <= 0 ||
      ver_compare(ver:ver, fix:great_or_equal, strict:FALSE) >= 0
    )
  vuln = TRUE;
else if (ctrl_append >!< ctrl)
{
  if(report_paranoia < 2)
    audit(AUDIT_POTENTIAL_VULN, "Xerox WorkCentre " + model + " System SW", ver);
  else vuln = TRUE;
}

if(!vuln) audit(AUDIT_INST_VER_NOT_VULN, "Xerox WorkCentre " + model + " System SW", ver);

report =
  '\n  Model                             : Xerox WorkCentre ' + model +
  '\n  Installed system software version : ' + ver +
  '\n  Fixed system software version     : ' + fix + ' and the 367972v2.dlm patch.\n';
security_report_v4(severity:SECURITY_HOLE, port:0, extra:report);

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(127108);
  script_version("1.4");
  script_cvs_date("Date: 2019/10/18 23:14:15");

  script_cve_id(
    "CVE-2019-12255",
    "CVE-2019-12256",
    "CVE-2019-12257",
    "CVE-2019-12258",
    "CVE-2019-12259",
    "CVE-2019-12260",
    "CVE-2019-12261",
    "CVE-2019-12262",
    "CVE-2019-12263",
    "CVE-2019-12264",
    "CVE-2019-12265"
  );
  script_xref(name:"IAVA", value:"2019-A-0274");

  script_name(english:"Wind River VxWorks Multiple Vulnerabilities (URGENT/11)");
  script_summary(english:"Checks the OS fingerprint version.");

  script_set_attribute(attribute:"synopsis", value:
"The remote VxWorks device is potentially affected by multiple remote
code execution and denial-of-service vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version, the remote device is
potentially affected by multiple Wind River VxWorks remote code
execution and denial-of-service vulnerabilities in the IPnet TCP/IP
stack. An unauthenticated, remote, attacker could leverage these
vulnerabilities to gain full access to the affected device or to cause
the device to become unresponsive.

Note that Nessus has not checked for the presence of the patch so this
finding may be a false positive.");
  # https://www.windriver.com/security/announcements/tcp-ip-network-stack-ipnet-urgent11/security-advisory-ipnet/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?e848e239");
  # https://go.armis.com/hubfs/White-papers/Urgent11%20Technical%20White%20Paper.pdf
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?e1994faf");
  script_set_attribute(attribute:"see_also", value:"https://armis.com/urgent11/");
  script_set_attribute(attribute:"solution", value:
"Contact the device vendor to obtain the appropriate update");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-12262");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/07/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/07/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/07/29");

  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:windriver:vxworks");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("os_fingerprint.nasl");
  script_require_keys("Settings/ParanoidReport", "Host/OS");

  exit(0);
}

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

os = get_kb_item_or_exit("Host/OS");
if ("VxWorks" >!< os) audit(AUDIT_OS_NOT, "VxWorks");

match = pregmatch(pattern:"VxWorks ([0-9][0-9.]*)", string:os);
if (isnull(match)) exit(1, "Failed to identify the version of VxWorks.");
version = match[1];

if (report_paranoia < 2) audit(AUDIT_PARANOID);

vuln = FALSE;

if (version =~ "^6($|\.)" && ver_compare(ver:version, fix:'6.5', strict:FALSE) >= 0 &&
    ver_compare(ver:version, fix:"6.9.4.11", strict:FALSE) <= 0)
{
  vuln = TRUE;
}
else if (version =~ "^7($|\.)")
{
  vuln = TRUE;
}

if (vuln)
{
  report =
    '\n    Version       : ' + version +
    '\n    Fixed Version : Consult Vendor' +
    '\n';

  security_report_v4(port:0, severity:SECURITY_HOLE, extra:report);
}
else audit(AUDIT_OS_RELEASE_NOT, "VxWorks", version);

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(127107);
  script_version("1.5");
  script_cvs_date("Date: 2019/10/18 23:14:14");

  script_cve_id(
    "CVE-2019-12255",
    "CVE-2019-12256",
    "CVE-2019-12257",
    "CVE-2019-12258",
    "CVE-2019-12259",
    "CVE-2019-12260",
    "CVE-2019-12261",
    "CVE-2019-12262",
    "CVE-2019-12263",
    "CVE-2019-12264",
    "CVE-2019-12265"
  );
  script_xref(name:"IAVA", value:"2019-A-0274");

  script_name(english:"SonicWall SonicOS Firewall Multiple Management Vulnerabilities (URGENT/11)");
  script_summary(english:"Checks the version of SonicOS.");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version, the remote SonicWall firewall is running a version of SonicOS that is affected
by multiple vulnerabilities:

  - Stack overflow in the parsing of IPv4 packets IP options. (CVE-2019-12256)

  - TCP Urgent Pointer = 0 leads to integer underflow (CVE-2019-12255)

  - TCP Urgent Pointer state confusion caused by malformed TCP AO option (CVE-2019-12260)

  - TCP Urgent Pointer state confusion during connect to a remote host (CVE-2019-12261)

  - TCP Urgent Pointer state confusion due to race condition (CVE-2019-12263)

  - Heap overflow in DHCP Offer/ACK parsing in ipdhcpc (CVE-2019-12257)

  - TCP connection DoS via malformed TCP options (CVE-2019-12258)

  - Handling of unsolicited Reverse ARP replies (Logical Flaw) (CVE-2019-12262)

  - Logical flaw in IPv4 assignment by the ipdhcpc DHCP client (CVE-2019-12264)

  - DoS via NULL dereference in IGMP parsing (CVE-2019-12259)

  - IGMP Information leak via IGMPv3 specific membership report (CVE-2019-12265)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0009");
  # https://www.sonicwall.com/support/product-notification/?sol_id=190717234810906
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?06406a07");
  script_set_attribute(attribute:"see_also", value:"https://armis.com/urgent11/");
  # https://www.windriver.com/security/announcements/tcp-ip-network-stack-ipnet-urgent11/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c7d3d59d");
  # https://go.armis.com/hubfs/White-papers/Urgent11%20Technical%20White%20Paper.pdf
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?e1994faf");
  script_set_attribute(attribute:"solution", value:
"Upgrade to the relevant fixed version referenced in the vendor security advisory.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-12262");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/07/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/07/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/07/29");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:sonicwall:sonicos");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("os_fingerprint.nasl");
  script_require_keys("Host/OS");

  exit(0);
}

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

os = get_kb_item_or_exit("Host/OS");
if (os !~ "^SonicOS" ) audit(AUDIT_OS_NOT, "SonicWall SonicOS");

# SonicOS Enhanced 5.9.1.10-1o on a SonicWALL NSA 220
match = pregmatch(pattern:"^SonicOS(?: Enhanced)? ([0-9.]+)(?:-[^ ]*)? on a SonicWALL (.*)$", string:os);
if (isnull(match)) exit(1, "Failed to identify the version of SonicOS.");
version = match[1];
model = match[2];

fix = NULL;

# NSA, TZ, SOHO (GEN5)
if (version =~ "^5\." && (model =~ "^(NSA|TZ|SOHO)") ) {
  if (version =~ "^5\.[0-8]\.")
    fix = NULL; # Patch not required.
  else if (version =~ "^5\.9\.0\.")
    fix = "5.9.0.8";
  else if (version =~ "^5\.9\.1\.")
    fix = "5.9.1.13";
}

# NSA, TZ, SOHO, SuperMassive 92xx/94xx/96xx (GEN6+)
if (version =~ "^6\." && (model =~ "^(NSA|TZ|SOHO|SuperMassive 9[246][0-9][0-9])") ) {
  if (version =~ "^6\.1\.")
    fix = NULL; # Patch not required.
  else if (version =~ "^6\.2\.[0-3]\.")
    fix = "6.2.3.2";
  else if (version =~ "^6\.2\.4\.")
    fix = "6.2.4.4";
  else if (version =~ "^6\.2\.5\.")
    fix = "6.2.5.4";
  else if (version =~ "^6\.2\.6\.")
    fix = "6.2.6.2";
  else if (version =~ "^6\.2\.7\.")
    fix = "6.2.7.5";
  else if (version =~ "^6\.2\.9\.")
    fix = "6.2.9.3";
  else if (version =~ "^6\.5\.0\.")
    fix = "6.5.0.4";
  else if (version =~ "^6\.5\.1\.")
    fix = "6.5.1.5";
  else if (version =~ "^6\.5\.2\.")
    fix = "6.5.2.4";
  else if (version =~ "^6\.5\.3\.")
    fix = "6.5.3.4";
  else if (version =~ "^6\.5\.4\.")
    fix = "6.5.4.4";
}

# SuperMassive 12K, 10K, 9800
if (model =~ "^SuperMassive (1[02]K|9800)") {
  if (version =~ "^6\.0\.")
    fix = NULL; # Patch not required.
  else if (version =~ "^6\.2\.7\.")
    fix = "6.2.7.11";
  else if (version =~ "^6\.4\.1\.")
    fix = "6.4.1.1";
  else if (version =~ "^6\.5\.1\.")
    fix = "6.5.1.10";
}

if (isnull(fix))
  audit(AUDIT_DEVICE_NOT_VULN, "SonicWALL " + model, "SonicOS " + version);

if (ver_compare(ver:version, fix:fix, strict:FALSE) < 0)
{
  port = 0;
  report =
    '\n  Device Model              : ' + model +
    '\n  Installed SonicOS version : ' + version +
    '\n  Fixed SonicOS version     : ' + fix +
    '\n';

  security_report_v4(port:port, extra:report, severity:SECURITY_HOLE);
}
else audit(AUDIT_DEVICE_NOT_VULN, "SonicWALL " + model, "SonicOS " + version);