Improper Authentication Affecting ntp package, versions [4.2.0,4.2.8)[4.3.0,4.3.90)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
2.18% (90th percentile)

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  • Snyk IDSNYK-UNMANAGED-NTP-2382756
  • published26 Jan 2022
  • disclosed26 Jan 2016
  • creditUnknown

Introduced: 26 Jan 2016

CVE-2015-7974  (opens in a new tab)
CWE-287  (opens in a new tab)

How to fix?

Upgrade ntp to version 4.2.8, 4.3.90 or higher.

Overview

Affected versions of this package are vulnerable to Improper Authentication. NTP 4.x before 4.2.8p6 and 4.3.x before 4.3.90 do not verify peer associations of symmetric keys when authenticating packets, which might allow remote attackers to conduct impersonation attacks via an arbitrary trusted key, aka a "skeleton key."

References

CVSS Scores

version 3.1