CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
93.0%
The remote NewStart CGSL host, running version MAIN 6.02, has expat packages installed that are affected by multiple vulnerabilities:
In Expat (aka libexpat) before 2.4.3, a left shift by 29 (or more) places in the storeAtts function in xmlparse.c can lead to realloc misbehavior (e.g., allocating too few bytes, or only freeing memory).
(CVE-2021-45960)
In doProlog in xmlparse.c in Expat (aka libexpat) before 2.4.3, an integer overflow exists for m_groupSize. (CVE-2021-46143)
addBinding in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow. (CVE-2022-22822)
build_model in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow. (CVE-2022-22823)
defineAttribute in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
(CVE-2022-22824)
lookup in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow. (CVE-2022-22825)
nextScaffoldPart in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
(CVE-2022-22826)
storeAtts in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow. (CVE-2022-22827)
Expat (aka libexpat) before 2.4.4 has a signed integer overflow in XML_GetBuffer, for configurations with a nonzero XML_CONTEXT_BYTES. (CVE-2022-23852)
xmltok_impl.c in Expat (aka libexpat) before 2.4.5 lacks certain validation of encoding, such as checks for whether a UTF-8 character is valid in a certain context. (CVE-2022-25235)
xmlparse.c in Expat (aka libexpat) before 2.4.5 allows attackers to insert namespace-separator characters into namespace URIs. (CVE-2022-25236)
In Expat (aka libexpat) before 2.4.5, there is an integer overflow in storeRawNames. (CVE-2022-25315)
Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from ZTE advisory NS-SA-2022-0098. The text
# itself is copyright (C) ZTE, Inc.
##
include('compat.inc');
if (description)
{
script_id(167471);
script_version("1.4");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/04");
script_cve_id(
"CVE-2021-45960",
"CVE-2021-46143",
"CVE-2022-22822",
"CVE-2022-22823",
"CVE-2022-22824",
"CVE-2022-22825",
"CVE-2022-22826",
"CVE-2022-22827",
"CVE-2022-23852",
"CVE-2022-25235",
"CVE-2022-25236",
"CVE-2022-25315"
);
script_name(english:"NewStart CGSL MAIN 6.02 : expat Multiple Vulnerabilities (NS-SA-2022-0098)");
script_set_attribute(attribute:"synopsis", value:
"The remote NewStart CGSL host is affected by multiple vulnerabilities.");
script_set_attribute(attribute:"description", value:
"The remote NewStart CGSL host, running version MAIN 6.02, has expat packages installed that are affected by multiple
vulnerabilities:
- In Expat (aka libexpat) before 2.4.3, a left shift by 29 (or more) places in the storeAtts function in
xmlparse.c can lead to realloc misbehavior (e.g., allocating too few bytes, or only freeing memory).
(CVE-2021-45960)
- In doProlog in xmlparse.c in Expat (aka libexpat) before 2.4.3, an integer overflow exists for
m_groupSize. (CVE-2021-46143)
- addBinding in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow. (CVE-2022-22822)
- build_model in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow. (CVE-2022-22823)
- defineAttribute in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
(CVE-2022-22824)
- lookup in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow. (CVE-2022-22825)
- nextScaffoldPart in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
(CVE-2022-22826)
- storeAtts in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow. (CVE-2022-22827)
- Expat (aka libexpat) before 2.4.4 has a signed integer overflow in XML_GetBuffer, for configurations with
a nonzero XML_CONTEXT_BYTES. (CVE-2022-23852)
- xmltok_impl.c in Expat (aka libexpat) before 2.4.5 lacks certain validation of encoding, such as checks
for whether a UTF-8 character is valid in a certain context. (CVE-2022-25235)
- xmlparse.c in Expat (aka libexpat) before 2.4.5 allows attackers to insert namespace-separator characters
into namespace URIs. (CVE-2022-25236)
- In Expat (aka libexpat) before 2.4.5, there is an integer overflow in storeRawNames. (CVE-2022-25315)
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:"http://security.gd-linux.com/notice/NS-SA-2022-0098");
script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2021-45960");
script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2021-46143");
script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2022-22822");
script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2022-22823");
script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2022-22824");
script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2022-22825");
script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2022-22826");
script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2022-22827");
script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2022-23852");
script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2022-25235");
script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2022-25236");
script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2022-25315");
script_set_attribute(attribute:"solution", value:
"Upgrade the vulnerable CGSL expat 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:S/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:F/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:F/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-45960");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2022-25315");
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:"2022/01/01");
script_set_attribute(attribute:"patch_publication_date", value:"2022/11/09");
script_set_attribute(attribute:"plugin_publication_date", value:"2022/11/15");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:expat");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:expat-devel");
script_set_attribute(attribute:"cpe", value:"cpe:/o:zte:cgsl_main:6");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"NewStart CGSL Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2022-2023 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 os_release = get_kb_item('Host/ZTE-CGSL/release');
if (isnull(os_release) || os_release !~ "^CGSL (MAIN|CORE)") audit(AUDIT_OS_NOT, 'NewStart Carrier Grade Server Linux');
if (os_release !~ "CGSL MAIN 6.02")
audit(AUDIT_OS_NOT, 'NewStart CGSL MAIN 6.02');
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 MAIN 6.02': [
'expat-2.2.5-4.el8_5.3',
'expat-devel-2.2.5-4.el8_5.3'
]
};
var pkg_list = pkgs[os_release];
foreach (pkg in pkg_list)
if (rpm_check(release:'ZTE ' + os_release, reference:pkg)) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
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, 'expat');
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-45960
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-46143
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-22822
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-22823
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-22824
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-22825
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-22826
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-22827
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-23852
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-25235
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-25236
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-25315
security.gd-linux.com/info/CVE-2021-45960
security.gd-linux.com/info/CVE-2021-46143
security.gd-linux.com/info/CVE-2022-22822
security.gd-linux.com/info/CVE-2022-22823
security.gd-linux.com/info/CVE-2022-22824
security.gd-linux.com/info/CVE-2022-22825
security.gd-linux.com/info/CVE-2022-22826
security.gd-linux.com/info/CVE-2022-22827
security.gd-linux.com/info/CVE-2022-23852
security.gd-linux.com/info/CVE-2022-25235
security.gd-linux.com/info/CVE-2022-25236
security.gd-linux.com/info/CVE-2022-25315
security.gd-linux.com/notice/NS-SA-2022-0098
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
93.0%