CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
93.9%
According to the versions of the krb5 packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :
A NULL pointer dereference flaw was found in MIT Kerberos kadmind service. An authenticated attacker with permission to modify a principal entry could use this flaw to cause kadmind to dereference a NULL pointer and crash by supplying an empty DB argument to the modify_principal command, if kadmind was configured to use the LDAP KDB module. (CVE-2016-3119)
A NULL pointer dereference flaw was found in MIT Kerberos krb5kdc service. An authenticated attacker could use this flaw to cause krb5kdc to dereference a NULL pointer and crash by making an S4U2Self request, if the restrict_anonymous_to_tgt option was set to true.(CVE-2016-3120)
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(99836);
script_version("1.16");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");
script_cve_id(
"CVE-2016-3119",
"CVE-2016-3120"
);
script_name(english:"EulerOS 2.0 SP1 : krb5 (EulerOS-SA-2016-1076)");
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 krb5 packages installed, the EulerOS
installation on the remote host is affected by the following
vulnerabilities :
- A NULL pointer dereference flaw was found in MIT
Kerberos kadmind service. An authenticated attacker
with permission to modify a principal entry could use
this flaw to cause kadmind to dereference a NULL
pointer and crash by supplying an empty DB argument to
the modify_principal command, if kadmind was configured
to use the LDAP KDB module. (CVE-2016-3119)
- A NULL pointer dereference flaw was found in MIT
Kerberos krb5kdc service. An authenticated attacker
could use this flaw to cause krb5kdc to dereference a
NULL pointer and crash by making an S4U2Self request,
if the restrict_anonymous_to_tgt option was set to
true.(CVE-2016-3120)
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-2016-1076
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?5f5619d3");
script_set_attribute(attribute:"solution", value:
"Update the affected krb5 packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:N/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:L/UI:N/S:U/C:N/I:N/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"patch_publication_date", value:"2016/11/03");
script_set_attribute(attribute:"plugin_publication_date", value:"2017/05/01");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:krb5-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:krb5-libs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:krb5-pkinit");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:krb5-server");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:krb5-server-ldap");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:krb5-workstation");
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) 2017-2021 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|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0");
sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(1)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP1");
uvp = get_kb_item("Host/EulerOS/uvp_version");
if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP1", "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 = ["krb5-devel-1.13.2-12.h2",
"krb5-libs-1.13.2-12.h2",
"krb5-pkinit-1.13.2-12.h2",
"krb5-server-1.13.2-12.h2",
"krb5-server-ldap-1.13.2-12.h2",
"krb5-workstation-1.13.2-12.h2"];
foreach (pkg in pkgs)
if (rpm_check(release:"EulerOS-2.0", sp:"1", 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, "krb5");
}
Vendor | Product | Version | CPE |
---|---|---|---|
huawei | euleros | krb5-devel | p-cpe:/a:huawei:euleros:krb5-devel |
huawei | euleros | krb5-libs | p-cpe:/a:huawei:euleros:krb5-libs |
huawei | euleros | krb5-pkinit | p-cpe:/a:huawei:euleros:krb5-pkinit |
huawei | euleros | krb5-server | p-cpe:/a:huawei:euleros:krb5-server |
huawei | euleros | krb5-server-ldap | p-cpe:/a:huawei:euleros:krb5-server-ldap |
huawei | euleros | krb5-workstation | p-cpe:/a:huawei:euleros:krb5-workstation |
huawei | euleros | 2.0 | cpe:/o:huawei:euleros:2.0 |
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
93.9%