PT-2015-3300 · Ntf+4 · Ntp+5

Aanchal Malhotra + 3 · Published 2015-10-21 · Updated 2024-06-15 · CVE-2015-7705

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions NTP versions 4.x before 4.2.8p4 NTP versions 4.3.x before 4.3.77

Description The rate limiting feature in NTP allows remote attackers to have unspecified impact via a large number of crafted requests. This issue exists due to insufficient input validation, which may allow a remote attacker to cause partial disruption of confidentiality, integrity, and availability of protected information by sending a large number of reverse requests.

Recommendations For NTP versions 4.x before 4.2.8p4, update to version 4.2.8p4 or later. For NTP versions 4.3.x before 4.3.77, update to version 4.3.77 or later.

Exploit

Fix

DoS

RCE

Weakness Enumeration

CWE-20

Related Identifiers

ALT-PU-2017-2335

BDU:2017-02017

CVE-2015-7705

OPENSUSE-SU-2016_1329-1

OPENSUSE-SU-2024:10181-1

SUSE-SU-2015:2058-1

SUSE-SU-2016:1247-1

SUSE-SU-2016:1278-1

SUSE-SU-2016:1291-1

SUSE-SU-2016:1311-1

SUSE-SU-2016:1471-1

SUSE-SU-2016:1568-1

USN-2783-1

Affected Products

Alt Linux

Cisco Ios Xe

Cisco Nexus

Ntp

Suse

Ubuntu

References · 290

• 🔥 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
• 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
• https://bdu.fstec.ru/vul/2017-02039 · Security Note
• https://ubuntu.com/security/CVE-2015-7855 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7705 · Security Note
• https://ubuntu.com/security/CVE-2015-7871 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7979 · Security Note
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.html · Vendor Advisory
• http://support.ntp.org/bin/view/Main/SecurityNotice#October_2015_NTP_4_2_8p4_Securit · Vendor Advisory