CVE-2015-7871

ntp: crypto-NAK symmetric association authentication bypass vulnerability

Published Aug 7, 2017 CVSS 3.1 · 9.8 Critical EPSS 81.8% KEV · Not listed
Description
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.

Analysis

No analysis available yet

Remediation

No remediation available yet

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-335-1 ntp security update
Debian DSA Debian DSA DSA-3388-1 ntp security update
Ubuntu USN Ubuntu USN USN-2783-1 NTP vulnerabilities
History

No history.

Weaknesses
  • CWE-287

    Improper Authentication

  • CWE-305

    Authentication Bypass by Primary Weakness

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 6, 2024, 8:06 AM
Reserved
Oct 19, 2015, 12:00 AM
Status
Modified
Published
Aug 7, 2017, 8:29 PM
Modified
Jun 17, 2026, 12:33 AM
Severity
Important
Public date
Oct 21, 2015, 12:00 AM