Huawei EulerOS: Security Advisory for ntp (EulerOS-SA-2019-2637)

Published: 2020-01-23 13:10:36
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:N/AC:M/Au:N/C:N/I:P/A:P

Summary:
The remote host is missing an update for the Huawei EulerOS 'ntp' Linux Distribution Package(s) announced via the EulerOS-SA-2019-2637 advisory.

Detection Method:
Checks if a vulnerable Linux Distribution Package version is present on the target host.

Technical Details:
NTP before 4.2.8p6 and 4.3.x before 4.3.90, when configured in broadcast mode, allows man-in-the-middle attackers to conduct replay attacks by sniffing the network.(CVE-2015-7973) NTP before 4.2.8p7 and 4.3.x before 4.3.92 allows remote attackers to cause a denial of service (prevent subsequent authentication) by leveraging knowledge of the controlkey or requestkey and sending a crafted packet to ntpd, which changes the value of trustedkey, controlkey, or requestkey. NOTE: this vulnerability exists because of a CVE-2016-2516 regression.(CVE-2016-2517) ntpd in ntp before 4.2.8p3 with remote configuration enabled allows remote authenticated users with knowledge of the configuration password and access to a computer entrusted to perform remote configuration to cause a denial of service (service crash) via a NULL byte in a crafted configuration directive packet.(CVE-2015-5146)

Affected Versions:
'ntp' Linux Distribution Package(s) on Huawei EulerOS V2.0SP3.

Recommendations:
Please install the updated Linux Distribution Package(s).

Solution Type:
Vendor Patch

Detection Type:
Linux Distribution Package

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2015-5146
https://nvd.nist.gov/vuln/detail/CVE-2015-7973
https://nvd.nist.gov/vuln/detail/CVE-2016-2517

References:

https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2019-2637

Severity
Medium
CVSS Score
5.8
Published
2020-01-23
Modified
2020-01-23
Category
Huawei EulerOS Local Security Checks

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