cve/2015/CVE-2015-1798.md

CVE-2015-1798

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.

POC

Reference

• http://www.kb.cert.org/vuls/id/374268
• http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
• http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
• https://kc.mcafee.com/corporate/index?page=content&id=SB10114

Github

• https://github.com/ARPSyndicate/cve-scores