CVE-2015-7973 Other in n/a
Man-in-the-middle attackers can replay NTP packets in broadcast mode to manipulate time synchronization, requiring an upgrade to NTP.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2015-7973?
CVE-2015-7973 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 30 Jan 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
NTP before 4.2.8p6 and 4.3.x before 4.3.90, when configured in broadcast mode, allows man-in-the-middle attackers to conduct replay attacks by sniffing the network.
Weakness: CWE-254
Which versions are affected by CVE-2015-7973?
It affects 7 products.
Products include Canonical Ubuntu Linux, Freebsd Freebsd, Netapp Clustered Data Ontap, Netapp Oncommand Balance, Ntp Ntp, Siemens Tim 4r-Ie Dnp3 Firmware and 1 more.
How do I fix CVE-2015-7973?
Upgrade to a fixed version.
Is CVE-2015-7973 being exploited?
There is no known exploitation of CVE-2015-7973 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DEBIAN-CVE-2015-7973, GHSA-rjg7-f2g5-4qhq, UBUNTU-CVE-2015-7973.