Vulnerabilities
Misconfiguration
Runtime Security
Compliance
CVE Vulnerabilities

CVE-2015-1798

Published: Apr 08, 2015 | Modified: Feb 12, 2023
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
1.8 LOW
AV:A/AC:H/Au:N/C:N/I:P/A:N
RedHat/V2
2.6 LOW
AV:N/AC:H/Au:N/C:N/I:P/A:N
RedHat/V3
Ubuntu
MEDIUM
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2015-1798
CWEhttps://cwe.mitre.org/data/definitions/17.html

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.

Affected Software

Name Vendor Start Version End Version
Ntp Ntp * 4.2.7p444 (including)
Red Hat Enterprise Linux 6 RedHat ntp-0:4.2.6p5-5.el6 *
Red Hat Enterprise Linux 7 RedHat ntp-0:4.2.6p5-22.el7 *
Ntp Ubuntu devel *
Ntp Ubuntu precise *
Ntp Ubuntu trusty *
Ntp Ubuntu upstream *
Ntp Ubuntu utopic *

References

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