PT-2015-7644 · Cisco+6 · Cisco Nexus+7

Aleksander Nikolich + 1 · Published 2015-10-21 · Updated 2024-06-15 · CVE-2015-7852

Positive Technologies (AI Summary)

CVSS v3.1

5.9

Medium

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions NTP versions 4.2.x through 4.2.8p3 NTP versions 4.3.x through 4.3.76 Cisco Nexus (affected versions not specified)

Description The issue allows remote attackers to cause a denial of service, resulting in a crash, via crafted mode 6 response packets.

Recommendations For NTP versions 4.2.x through 4.2.8p3, update to version 4.2.8p4 or later. For NTP versions 4.3.x through 4.3.76, update to version 4.3.77 or later. For Cisco Nexus, at the moment, there is no information about a newer version that contains a fix for this issue.

Exploit

Fix

DoS

RCE

Weakness Enumeration

CWE-20

Related Identifiers

ALT-PU-2017-2335

CESA-2016_0780

CESA-2016_2583

CVE-2015-7852

DLA-335-1

DSA-3388-1

MGASA-2015-0413

OPENSUSE-SU-2024:10181-1

RHSA-2016:0780

RHSA-2016:2583

RHSA-2016_0780

RHSA-2016_2583

SUSE-SU-2015:2058-1

SUSE-SU-2016:1247-1

SUSE-SU-2016:1311-1

USN-2783-1

Affected Products

Alt Linux

Centos

Cisco Ios Xe

Cisco Nexus

Ntp

Red Hat

Suse

Ubuntu

References · 258

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/scanner/ntp/ntp_nak_to_the_future.rb · Exploit
• 🔥 https://github.com/opsxcq/exploit-CVE-2016-7434 · Exploit
• https://bdu.fstec.ru/vul/2017-02017 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2516 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5194 · Security Note
• https://security-tracker.debian.org/tracker/source-package/ntp · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9310 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2016:1311-1 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2517 · Security Note
• http://debian.org/security/2015/dsa-3388 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4954 · Security Note
• http://support.ntp.org/bin/view/Main/NtpBug2919 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4953 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7703 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7702 · Security Note