Vulnerability in Ntp
CVE-2015-1798
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.
EPSS: 0.022 (80.8th percentile) — read the EPSS interpretation.
Affected products
- Ntp
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (vdb-entry, x_refsource_SECTRACK)
- secalert@redhat.com (x_refsource_UBUNTU, vendor-advisory)
- secalert@redhat.com (US Government Resource, x_refsource_CERT-VN, Third Party Advisory, third-party-advisory)
- secalert@redhat.com (x_refsource_HP, vendor-advisory)
- secalert@redhat.com (vendor-advisory, x_refsource_FEDORA)
- secalert@redhat.com (x_refsource_CONFIRM, Vendor Advisory)
- secalert@redhat.com (x_refsource_CONFIRM)
- secalert@redhat.com (vendor-advisory, x_refsource_FEDORA)
- secalert@redhat.com (vendor-advisory, x_refsource_APPLE)
- secalert@redhat.com (vendor-advisory, x_refsource_SUSE)
Frequently asked questions
- What is CVE-2015-1798?
- CVE-2015-1798 is a vulnerability in Ntp, classified under CWE-17. Published 2015-04-08.
- Is CVE-2015-1798 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.