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nessusThis script is Copyright (C) 2022 and is owned by Tenable, Inc. or an Affiliate thereof.NEWSTART_CGSL_NS-SA-2022-0016_GLIBC.NASL
HistoryMay 09, 2022 - 12:00 a.m.

NewStart CGSL CORE 5.04 / MAIN 5.04 : glibc Vulnerability (NS-SA-2022-0016)

2022-05-0900:00:00
This script is Copyright (C) 2022 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
30

6.4 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:N/A:P

9.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

0.011 Low

EPSS

Percentile

84.8%

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

  • The wordexp function in the GNU C Library (aka glibc) through 2.33 may crash or read arbitrary memory in parse_param (in posix/wordexp.c) when called with an untrusted, crafted pattern, potentially resulting in a denial of service or disclosure of information. This occurs because atoi was used but strtoul should have been used to ensure correct calculations. (CVE-2021-35942)

Note that Nessus has not tested for this issue but has instead relied only on the applicationโ€™s self-reported version number.

##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from ZTE advisory NS-SA-2022-0016. The text
# itself is copyright (C) ZTE, Inc.
##

include('compat.inc');

if (description)
{
  script_id(160779);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/05/09");

  script_cve_id("CVE-2021-35942");

  script_name(english:"NewStart CGSL CORE 5.04 / MAIN 5.04 : glibc Vulnerability (NS-SA-2022-0016)");

  script_set_attribute(attribute:"synopsis", value:
"The remote NewStart CGSL host 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 glibc packages installed that are affected by
a vulnerability:

  - The wordexp function in the GNU C Library (aka glibc) through 2.33 may crash or read arbitrary memory in
    parse_param (in posix/wordexp.c) when called with an untrusted, crafted pattern, potentially resulting in
    a denial of service or disclosure of information. This occurs because atoi was used but strtoul should
    have been used to ensure correct calculations. (CVE-2021-35942)

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-2022-0016");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2021-35942");
  script_set_attribute(attribute:"solution", value:
"Upgrade the vulnerable CGSL glibc 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:P/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/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:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-35942");

  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:"2021/07/22");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/05/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/05/09");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:glibc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:glibc-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:glibc-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:glibc-debuginfo-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:glibc-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:glibc-headers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:glibc-i18n");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:glibc-iconv");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:glibc-lang");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:glibc-locale");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:glibc-static");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:glibc-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:glibc-utils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_core:nscd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:glibc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:glibc-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:glibc-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:glibc-debuginfo-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:glibc-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:glibc-headers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:glibc-static");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:glibc-utils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:nscd");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:zte:cgsl_core:5");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:zte:cgsl_main:5");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2022 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('rpm.inc');

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

var 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);

var 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);

var flag = 0;

var pkgs = {
  'CGSL CORE 5.04': [
    'glibc-2.17-322.el7_9.cgslv5.0.8.ge7da949.lite',
    'glibc-common-2.17-322.el7_9.cgslv5.0.8.ge7da949.lite',
    'glibc-debuginfo-2.17-322.el7_9.cgslv5.0.8.ge7da949.lite',
    'glibc-debuginfo-common-2.17-322.el7_9.cgslv5.0.8.ge7da949.lite',
    'glibc-devel-2.17-322.el7_9.cgslv5.0.8.ge7da949.lite',
    'glibc-headers-2.17-322.el7_9.cgslv5.0.8.ge7da949.lite',
    'glibc-i18n-2.17-322.el7_9.cgslv5.0.8.ge7da949.lite',
    'glibc-iconv-2.17-322.el7_9.cgslv5.0.8.ge7da949.lite',
    'glibc-lang-2.17-322.el7_9.cgslv5.0.8.ge7da949.lite',
    'glibc-locale-2.17-322.el7_9.cgslv5.0.8.ge7da949.lite',
    'glibc-static-2.17-322.el7_9.cgslv5.0.8.ge7da949.lite',
    'glibc-tools-2.17-322.el7_9.cgslv5.0.8.ge7da949.lite',
    'glibc-utils-2.17-322.el7_9.cgslv5.0.8.ge7da949.lite',
    'nscd-2.17-322.el7_9.cgslv5.0.8.ge7da949.lite'
  ],
  'CGSL MAIN 5.04': [
    'glibc-2.17-322.el7_9.cgslv5.0.4.gefc3cd4',
    'glibc-common-2.17-322.el7_9.cgslv5.0.4.gefc3cd4',
    'glibc-debuginfo-2.17-322.el7_9.cgslv5.0.4.gefc3cd4',
    'glibc-debuginfo-common-2.17-322.el7_9.cgslv5.0.4.gefc3cd4',
    'glibc-devel-2.17-322.el7_9.cgslv5.0.4.gefc3cd4',
    'glibc-headers-2.17-322.el7_9.cgslv5.0.4.gefc3cd4',
    'glibc-static-2.17-322.el7_9.cgslv5.0.4.gefc3cd4',
    'glibc-utils-2.17-322.el7_9.cgslv5.0.4.gefc3cd4',
    'nscd-2.17-322.el7_9.cgslv5.0.4.gefc3cd4'
  ]
};
var 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
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'glibc');
}
VendorProductVersionCPE
ztecgsl_coreglibc-utilsp-cpe:/a:zte:cgsl_core:glibc-utils
ztecgsl_corenscdp-cpe:/a:zte:cgsl_core:nscd
ztecgsl_mainglibcp-cpe:/a:zte:cgsl_main:glibc
ztecgsl_mainglibc-commonp-cpe:/a:zte:cgsl_main:glibc-common
ztecgsl_mainglibc-debuginfop-cpe:/a:zte:cgsl_main:glibc-debuginfo
ztecgsl_mainglibc-debuginfo-commonp-cpe:/a:zte:cgsl_main:glibc-debuginfo-common
ztecgsl_mainglibc-develp-cpe:/a:zte:cgsl_main:glibc-devel
ztecgsl_mainglibc-headersp-cpe:/a:zte:cgsl_main:glibc-headers
ztecgsl_mainglibc-staticp-cpe:/a:zte:cgsl_main:glibc-static
ztecgsl_mainglibc-utilsp-cpe:/a:zte:cgsl_main:glibc-utils
Rows per page:
1-10 of 251

6.4 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:N/A:P

9.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

0.011 Low

EPSS

Percentile

84.8%