According to the versions of the bind packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :
BIND servers are vulnerable if they are running an affected version and are configured to use GSS-TSIG features. In a configuration which uses BIND’s default settings the vulnerable code path is not exposed, but a server can be rendered vulnerable by explicitly setting valid values for the tkey-gssapi-keytab or tkey-gssapi-credentialconfiguration options. Although the default configuration is not vulnerable, GSS-TSIG is frequently used in networks where BIND is integrated with Samba, as well as in mixed-server environments that combine BIND servers with Active Directory domain controllers. The most likely outcome of a successful exploitation of the vulnerability is a crash of the named process. However, remote code execution, while unproven, is theoretically possible.(CVE-2020-8625)
In BIND 9.8.5 -> 9.8.8, 9.9.3 -> 9.11.29, 9.12.0 -> 9.16.13, and versions BIND 9.9.3-S1 -> 9.11.29-S1 and 9.16.8-S1 -> 9.16.13-S1 of BIND 9 Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.11 of the BIND 9.17 development branch, when a vulnerable version of named receives a malformed IXFR triggering the flaw described above, the named process will terminate due to a failed assertion the next time the transferred secondary zone is refreshed.(CVE-2021-25214)
In BIND 9.0.0 -> 9.11.29, 9.12.0 -> 9.16.13, and versions BIND 9.9.3-S1 -> 9.11.29-S1 and 9.16.8-S1 -> 9.16.13-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.11 of the BIND 9.17 development branch, when a vulnerable version of named receives a query for a record triggering the flaw described above, the named process will terminate due to a failed assertion check.(CVE-2021-25215)
Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(153289);
script_version("1.2");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/09/16");
script_cve_id(
"CVE-2020-8625",
"CVE-2021-25214",
"CVE-2021-25215"
);
script_name(english:"EulerOS 2.0 SP2 : bind (EulerOS-SA-2021-2354)");
script_summary(english:"Checks the rpm output for the updated packages.");
script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS host is missing multiple security updates.");
script_set_attribute(attribute:"description", value:
"According to the versions of the bind packages installed, the EulerOS
installation on the remote host is affected by the following
vulnerabilities :
- BIND servers are vulnerable if they are running an
affected version and are configured to use GSS-TSIG
features. In a configuration which uses BIND's default
settings the vulnerable code path is not exposed, but a
server can be rendered vulnerable by explicitly setting
valid values for the tkey-gssapi-keytab or
tkey-gssapi-credentialconfiguration options. Although
the default configuration is not vulnerable, GSS-TSIG
is frequently used in networks where BIND is integrated
with Samba, as well as in mixed-server environments
that combine BIND servers with Active Directory domain
controllers. The most likely outcome of a successful
exploitation of the vulnerability is a crash of the
named process. However, remote code execution, while
unproven, is theoretically possible.(CVE-2020-8625)
- In BIND 9.8.5 -> 9.8.8, 9.9.3 -> 9.11.29, 9.12.0 ->
9.16.13, and versions BIND 9.9.3-S1 -> 9.11.29-S1 and
9.16.8-S1 -> 9.16.13-S1 of BIND 9 Supported Preview
Edition, as well as release versions 9.17.0 -> 9.17.11
of the BIND 9.17 development branch, when a vulnerable
version of named receives a malformed IXFR triggering
the flaw described above, the named process will
terminate due to a failed assertion the next time the
transferred secondary zone is
refreshed.(CVE-2021-25214)
- In BIND 9.0.0 -> 9.11.29, 9.12.0 -> 9.16.13, and
versions BIND 9.9.3-S1 -> 9.11.29-S1 and 9.16.8-S1 ->
9.16.13-S1 of BIND Supported Preview Edition, as well
as release versions 9.17.0 -> 9.17.11 of the BIND 9.17
development branch, when a vulnerable version of named
receives a query for a record triggering the flaw
described above, the named process will terminate due
to a failed assertion check.(CVE-2021-25215)
Note that Tenable Network Security has extracted the preceding
description block directly from the EulerOS security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
# https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2021-2354
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?e5a7711f");
script_set_attribute(attribute:"solution", value:
"Update the affected bind packages.");
script_set_cvss_base_vector("CVSS2#AV:N/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:N/AC:H/PR:N/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-2020-8625");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"patch_publication_date", value:"2021/09/14");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/09/14");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:bind");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:bind-chroot");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:bind-libs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:bind-libs-lite");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:bind-license");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:bind-pkcs11");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:bind-pkcs11-libs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:bind-pkcs11-utils");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:bind-utils");
script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Huawei Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/sp");
script_exclude_keys("Host/EulerOS/uvp_version");
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/EulerOS/release");
if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
if (release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0");
sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(2)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP2");
uvp = get_kb_item("Host/EulerOS/uvp_version");
if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP2", "EulerOS UVP " + uvp);
if (!get_kb_item("Host/EulerOS/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$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_ARCH_NOT, "i686 / x86_64", cpu);
flag = 0;
pkgs = ["bind-9.9.4-61.1.h12",
"bind-chroot-9.9.4-61.1.h12",
"bind-libs-9.9.4-61.1.h12",
"bind-libs-lite-9.9.4-61.1.h12",
"bind-license-9.9.4-61.1.h12",
"bind-pkcs11-9.9.4-61.1.h12",
"bind-pkcs11-libs-9.9.4-61.1.h12",
"bind-pkcs11-utils-9.9.4-61.1.h12",
"bind-utils-9.9.4-61.1.h12"];
foreach (pkg in pkgs)
if (rpm_check(release:"EulerOS-2.0", sp:"2", 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, "bind");
}
Vendor | Product | Version | CPE |
---|---|---|---|
huawei | euleros | bind | p-cpe:/a:huawei:euleros:bind |
huawei | euleros | bind-chroot | p-cpe:/a:huawei:euleros:bind-chroot |
huawei | euleros | bind-libs | p-cpe:/a:huawei:euleros:bind-libs |
huawei | euleros | bind-libs-lite | p-cpe:/a:huawei:euleros:bind-libs-lite |
huawei | euleros | bind-license | p-cpe:/a:huawei:euleros:bind-license |
huawei | euleros | bind-pkcs11 | p-cpe:/a:huawei:euleros:bind-pkcs11 |
huawei | euleros | bind-pkcs11-libs | p-cpe:/a:huawei:euleros:bind-pkcs11-libs |
huawei | euleros | bind-pkcs11-utils | p-cpe:/a:huawei:euleros:bind-pkcs11-utils |
huawei | euleros | bind-utils | p-cpe:/a:huawei:euleros:bind-utils |
huawei | euleros | 2.0 | cpe:/o:huawei:euleros:2.0 |