CVE-2015-1798

Published Apr 8, 2015

Last updated 3 months ago

Overview

Description: The symmetric-key feature in the receive function in ntp_proto.c in ntpd in NTP 4.x before 4.2.8p2 requires a correct MAC only if the MAC field has a nonzero length, which makes it easier for man-in-the-middle attackers to spoof packets by omitting the MAC.
Source: secalert@redhat.com
NVD status: Modified

Risk scores

CVSS 2.0

Type: Primary
Base score: 1.8
Impact score: 2.9
Exploitability score: 3.2
Vector string: AV:A/AC:H/Au:N/C:N/I:P/A:N

Weaknesses

nvd@nist.gov: CWE-17

Hype score: Not currently trending

Configurations

[
  {
    "nodes": [
      {
        "negate": false,
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:*",
            "vulnerable": true,
            "matchCriteriaId": "E538FCAE-3E2C-4EA8-A74F-ABF47652C15C",
            "versionEndIncluding": "4.2.7p444"
          }
        ],
        "operator": "OR"
      }
    ]
  }
]

References