EulerOS 2.0 SP5 : ntp (EulerOS-SA-2019-1323)

High Nessus Plugin ID 124450

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VPR Score: 6.7

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)

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.

See Also

http://www.nessus.org/u?4a99aeb5

Plugin Details

Severity: High

ID: 124450

File Name: EulerOS_SA-2019-1323.nasl

Version: 1.5

Type: local

Published: 2019/05/01

Updated: 2020/11/13

Dependencies: 12634

Risk Information

Risk Factor: High

VPR Score: 6.7

CVSS v2.0

Base Score: 7.5

Temporal Score: 5.5

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 9.8

Temporal Score: 8.5

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:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:ntp, p-cpe:/a:huawei:euleros:ntpdate, p-cpe:/a:huawei:euleros:sntp, 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 Ease: No known exploits are available

Patch Publication Date: 2019/04/20

Reference Information

CVE: CVE-2015-7705, CVE-2015-7850, CVE-2015-7976, CVE-2018-7185