NewStart CGSL CORE 5.04 / MAIN 5.04 : rsyslog Vulnerability (NS-SA-2019-0225)

2019-12-02T00:00:00
ID NEWSTART_CGSL_NS-SA-2019-0225_RSYSLOG.NASL
Type nessus
Reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2020-01-02T00:00:00

Description

The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has rsyslog packages installed that are affected by a vulnerability:

  • Stack-based buffer overflow in the parseLegacySyslogMsg function in tools/syslogd.c in rsyslogd in rsyslog 4.6.x before 4.6.8 and 5.2.0 through 5.8.4 might allow remote attackers to cause a denial of service (application exit) via a long TAG in a legacy syslog message. (CVE-2011-3200)

Note that Nessus has not tested for this issue but has instead relied only on the application

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

# The descriptive text and package checks in this plugin were
# extracted from ZTE advisory NS-SA-2019-0225. The text
# itself is copyright (C) ZTE, Inc.

include("compat.inc");

if (description)
{
  script_id(131408);
  script_version("1.2");
  script_cvs_date("Date: 2019/12/04");

  script_cve_id("CVE-2011-3200");
  script_bugtraq_id(49413);

  script_name(english:"NewStart CGSL CORE 5.04 / MAIN 5.04 : rsyslog Vulnerability (NS-SA-2019-0225)");

  script_set_attribute(attribute:"synopsis", value:
"The remote machine is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has rsyslog packages installed that are affected
by a vulnerability:

  - Stack-based buffer overflow in the parseLegacySyslogMsg
    function in tools/syslogd.c in rsyslogd in rsyslog 4.6.x
    before 4.6.8 and 5.2.0 through 5.8.4 might allow remote
    attackers to cause a denial of service (application
    exit) via a long TAG in a legacy syslog message.
    (CVE-2011-3200)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/notice/NS-SA-2019-0225");
  script_set_attribute(attribute:"solution", value:
"Upgrade the vulnerable CGSL rsyslog packages. Note that updated packages may not be available yet. Please contact ZTE
for more information.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2011-3200");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2011/09/06");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/11/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/12/02");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"NewStart CGSL Local Security Checks");

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

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/ZTE-CGSL/release", "Host/ZTE-CGSL/rpm-list", "Host/cpu");

  exit(0);
}

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

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

release = get_kb_item("Host/ZTE-CGSL/release");
if (isnull(release) || release !~ "^CGSL (MAIN|CORE)") audit(AUDIT_OS_NOT, "NewStart Carrier Grade Server Linux");

if (release !~ "CGSL CORE 5.04" &&
    release !~ "CGSL MAIN 5.04")
  audit(AUDIT_OS_NOT, 'NewStart CGSL CORE 5.04 / NewStart CGSL MAIN 5.04');

if (!get_kb_item("Host/ZTE-CGSL/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "NewStart Carrier Grade Server Linux", cpu);

flag = 0;

pkgs = {
  "CGSL CORE 5.04": [
    "rsyslog-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-crypto-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-debuginfo-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-doc-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-elasticsearch-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-gnutls-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-gssapi-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-kafka-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-libdbi-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-mmaudit-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-mmjsonparse-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-mmkubernetes-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-mmnormalize-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-mmsnmptrapd-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-mysql-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-pgsql-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-relp-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-snmp-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-udpspoof-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685"
  ],
  "CGSL MAIN 5.04": [
    "rsyslog-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-crypto-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-debuginfo-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-doc-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-elasticsearch-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-gnutls-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-gssapi-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-kafka-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-libdbi-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-mmaudit-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-mmjsonparse-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-mmkubernetes-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-mmnormalize-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-mmsnmptrapd-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-mysql-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-pgsql-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-relp-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-snmp-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685",
    "rsyslog-udpspoof-8.24.0-41.el7_7.2.cgslv5.0.2.g75fe685"
  ]
};
pkg_list = pkgs[release];

foreach (pkg in pkg_list)
  if (rpm_check(release:"ZTE " + release, reference:pkg)) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "rsyslog");
}