CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
27.7%
The remote NewStart CGSL host, running version MAIN 4.05, has openssh-latest packages installed that are affected by a vulnerability:
Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from ZTE advisory NS-SA-2022-0001. The text
# itself is copyright (C) ZTE, Inc.
##
include('compat.inc');
if (description)
{
script_id(160810);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/02/09");
script_cve_id("CVE-2021-41617");
script_xref(name:"IAVA", value:"2021-A-0474-S");
script_name(english:"NewStart CGSL MAIN 4.05 : openssh-latest Vulnerability (NS-SA-2022-0001)");
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 MAIN 4.05, has openssh-latest packages installed that are affected by a
vulnerability:
- sshd in OpenSSH 6.2 through 8.x before 8.8, when certain non-default configurations are used, allows
privilege escalation because supplemental groups are not initialized as expected. Helper programs for
AuthorizedKeysCommand and AuthorizedPrincipalsCommand may run with privileges associated with group
memberships of the sshd process, if the configuration specifies running the command as a different user.
(CVE-2021-41617)
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-2022-0001");
script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2021-41617");
script_set_attribute(attribute:"solution", value:
"Upgrade the vulnerable CGSL openssh-latest packages. Note that updated packages may not be available yet. Please contact
ZTE for more information.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:P/I:P/A:P");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/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-2021-41617");
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:"2021/09/26");
script_set_attribute(attribute:"patch_publication_date", value:"2022/05/07");
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_main:openssh-latest");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:openssh-latest-askpass");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:openssh-latest-clients");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:openssh-latest-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:openssh-latest-keycat");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:openssh-latest-server");
script_set_attribute(attribute:"cpe", value:"cpe:/o:zte:cgsl_main:4");
script_set_attribute(attribute:"stig_severity", value:"I");
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 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 MAIN 4.05")
audit(AUDIT_OS_NOT, 'NewStart CGSL MAIN 4.05');
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 4.05': [
'openssh-latest-8.5p1-2.el6.cgslv4_6.0.7.g0b22f39',
'openssh-latest-askpass-8.5p1-2.el6.cgslv4_6.0.7.g0b22f39',
'openssh-latest-clients-8.5p1-2.el6.cgslv4_6.0.7.g0b22f39',
'openssh-latest-debuginfo-8.5p1-2.el6.cgslv4_6.0.7.g0b22f39',
'openssh-latest-keycat-8.5p1-2.el6.cgslv4_6.0.7.g0b22f39',
'openssh-latest-server-8.5p1-2.el6.cgslv4_6.0.7.g0b22f39'
]
};
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, 'openssh-latest');
}
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
27.7%