Improper Authentication Affecting ntp package, versions <1:4.2.8p7+dfsg-1


Severity

Recommended
low

Based on Debian security rating

    Threat Intelligence

    EPSS
    0.29% (70th percentile)

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  • Snyk ID SNYK-DEBIAN11-NTP-531458
  • published 26 Jan 2016
  • disclosed 26 Jan 2016

How to fix?

Upgrade Debian:11 ntp to version 1:4.2.8p7+dfsg-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ntp package and not the ntp package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

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."

CVSS Scores

version 3.1
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NVD

7.7 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Changed
  • Confidentiality (C)
    None
  • Integrity (I)
    High
  • Availability (A)
    None
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Red Hat

4.2 medium