2.1 Low
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:N/I:N/A:P
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
0.0004 Low
EPSS
Percentile
5.1%
According to the versions of the avahi packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :
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(153714);
script_version("1.2");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/09/27");
script_cve_id("CVE-2021-3468");
script_name(english:"EulerOS 2.0 SP5 : avahi (EulerOS-SA-2021-2492)");
script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS host is missing a security update.");
script_set_attribute(attribute:"description", value:
"According to the versions of the avahi packages installed, the EulerOS installation on the remote host is affected by
the following vulnerabilities :
- A flaw was found in avahi in versions 0.6 up to 0.8. The event used to signal the termination of the
client connection on the avahi Unix socket is not correctly handled in the client_work function, allowing
a local attacker to trigger an infinite loop. The highest threat from this vulnerability is to the
availability of the avahi service, which becomes unresponsive after this flaw is triggered.
(CVE-2021-3468)
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-2021-2492
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ecb7312f");
script_set_attribute(attribute:"solution", value:
"Update the affected avahi packages.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/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:L/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:"cvss_score_source", value:"CVE-2021-3468");
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:"2021/06/02");
script_set_attribute(attribute:"patch_publication_date", value:"2021/09/27");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/09/27");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:avahi");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:avahi-autoipd");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:avahi-glib");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:avahi-gobject");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:avahi-libs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:avahi-ui-gtk3");
script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0");
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);
var release = get_kb_item("Host/EulerOS/release");
if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
var uvp = get_kb_item("Host/EulerOS/uvp_version");
if (release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP5");
var sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(5)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP5");
if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP5", "EulerOS UVP " + uvp);
if (!get_kb_item("Host/EulerOS/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$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_ARCH_NOT, "i686 / x86_64", cpu);
var flag = 0;
var pkgs = [
"avahi-0.6.31-19.h4.eulerosv2r7",
"avahi-autoipd-0.6.31-19.h4.eulerosv2r7",
"avahi-glib-0.6.31-19.h4.eulerosv2r7",
"avahi-gobject-0.6.31-19.h4.eulerosv2r7",
"avahi-libs-0.6.31-19.h4.eulerosv2r7",
"avahi-ui-gtk3-0.6.31-19.h4.eulerosv2r7"
];
foreach (var pkg in pkgs)
if (rpm_check(release:"EulerOS-2.0", sp:"5", reference:pkg)) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_NOTE,
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, "avahi");
}
Vendor | Product | Version | CPE |
---|---|---|---|
huawei | euleros | avahi | p-cpe:/a:huawei:euleros:avahi |
huawei | euleros | avahi-autoipd | p-cpe:/a:huawei:euleros:avahi-autoipd |
huawei | euleros | avahi-glib | p-cpe:/a:huawei:euleros:avahi-glib |
huawei | euleros | avahi-gobject | p-cpe:/a:huawei:euleros:avahi-gobject |
huawei | euleros | avahi-libs | p-cpe:/a:huawei:euleros:avahi-libs |
huawei | euleros | avahi-ui-gtk3 | p-cpe:/a:huawei:euleros:avahi-ui-gtk3 |
huawei | euleros | 2.0 | cpe:/o:huawei:euleros:2.0 |
2.1 Low
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:N/I:N/A:P
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
0.0004 Low
EPSS
Percentile
5.1%