EulerOS 2.0 SP2 : ntp (EulerOS-SA-2019-1719)

critical Nessus Plugin ID 126847

Synopsis

The remote EulerOS host is missing multiple security updates.

Description

According to the versions of the ntp packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

- The rate limiting feature in NTP 4.x before 4.2.8p4 and 4.3.x before 4.3.77 allows remote attackers to have unspecified impact via a large number of crafted requests.

- Mitigation:Do not add the 'limited' configuration option to any restrict lines in the ntp.conf file.(CVE-2015-7705)

- The protocol engine in ntp 4.2.6 before 4.2.8p11 allows a remote attackers to cause a denial of service (disruption) by continually sending a packet with a zero-origin timestamp and source IP address of the 'other side' of an interleaved association causing the victim ntpd to reset its association(CVE-2018-7185)

- The ntpq saveconfig command in NTP 4.1.2, 4.2.x before 4.2.8p6, 4.3, 4.3.25, 4.3.70, and 4.3.77 does not properly filter special characters, which allows attackers to cause unspecified impact via a crafted filename.(CVE-2015-7976)

- ntpd in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote authenticated users to cause a denial of service (infinite loop or crash) by pointing the key file at the log file.

- Mitigation:Disable NTP remote configuration or limit this feature to trusted users to effectively mitigate this risk(CVE-2015-7850)

- The datalen parameter in the refclock driver in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to execute arbitrary code or cause a denial of service (crash) via a negative input value.(CVE-2015-7853)

- Crypto-NAK packets in ntpd in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to bypass authentication.(CVE-2015-7871)

- The decodenetnum function in ntpd in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to cause a denial of service (assertion failure) via a 6 or mode 7 packet containing a long data value.(CVE-2015-7855)

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.

Solution

Update the affected ntp packages.

Plugin Details

Severity: Critical

ID: 126847

File Name: EulerOS_SA-2019-1719.nasl

Version: 1.5

Type: local

Family: Huawei Local Security Checks

Published: 7/22/2019

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:ntp, p-cpe:/a:huawei:euleros:ntpdate, cpe:/o:huawei:euleros:2.0

Required KB Items: Host/local_checks_enabled, Host/EulerOS/release, Host/EulerOS/rpm-list, Host/EulerOS/sp

Excluded KB Items: Host/EulerOS/uvp_version

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/23/2019

Reference Information

CVE: CVE-2015-7705, CVE-2015-7850, CVE-2015-7853, CVE-2015-7855, CVE-2015-7871, CVE-2015-7976, CVE-2018-7185

Detections

Analytics