Is CVE-2015-8140 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2015-8140 being exploited in the wild.

How severe is CVE-2015-8140?

Medium severity, with a CVSS score of 4.8, published 30 January 2017.

Which products and versions are affected?

NTP Project NTP Before 4.2.8p7.

Is there a fix for CVE-2015-8140?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2015-8140 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2015-8140?

Check whether you run Ntp. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2015-8140: NTP ntpq protocol replay attack vulnerability

CVE-2015-8140 · Severity: medium · CVSS 4.8 · Published 2017-01-30

A vulnerability in the Network Time Protocol (NTP) utility could allow an attacker to intercept and resend network traffic. This could potentially be used to disrupt time synchronization services or manipulate system logs. Organizations relying on precise timekeeping for security or operational logging should ensure their systems are updated.

Technologies: Ntp. Vendors: Ntp.

Quick answers

Is CVE-2015-8140 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2015-8140 being exploited in the wild.
How severe is CVE-2015-8140?: Medium severity, with a CVSS score of 4.8, published 30 January 2017.
Which products and versions are affected?: NTP Project NTP Before 4.2.8p7.
Is there a fix for CVE-2015-8140?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2015-8140 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2015-8140?: Check whether you run Ntp. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The ntpq protocol in NTP versions prior to 4.2.8p7 is vulnerable to replay attacks. An attacker with the ability to sniff network traffic can capture legitimate ntpq control packets and re-transmit them to the target server. This occurs due to improper access control and lack of sufficient replay protection within the ntpq protocol implementation. Successful exploitation could allow an attacker to perform unauthorized configuration queries or minor modifications, potentially impacting the integrity and availability of the time service. The issue is addressed in NTP 4.2.8p7.

Affected products

NTP Project NTP Before 4.2.8p7

Timeline

2016-01-27: advisory: Cisco security advisory published
2017-01-30: disclosed: NVD publication date

References

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