CVE-2015-7871critical
New! CVE Severity Now Using CVSS v3
The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.
Description
Crypto-NAK packets in ntpd in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to bypass authentication.
References
https://bugzilla.redhat.com/show_bug.cgi?id=1274265
http://www.securityfocus.com/bid/77287
http://support.ntp.org/bin/view/Main/NtpBug2941
https://security.gentoo.org/glsa/201607-15
https://security.gentoo.org/glsa/201604-03
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05270839
http://www.securitytracker.com/id/1033951
http://www.debian.org/security/2015/dsa-3388
https://security.netapp.com/advisory/ntap-20171004-0001/
https://cert-portal.siemens.com/productcert/pdf/ssa-497656.pdf
Details
Source: MITRE
Published: 2017-08-07
Updated: 2021-04-13
Type: CWE-287
Risk Information
CVSS v2
Base Score: 7.5
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 10
Severity: HIGH
CVSS v3
Base Score: 9.8
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 3.9
Severity: CRITICAL
Vulnerable Software
Configuration 1
OR
cpe:2.3:a:ntp:ntp:4.2.5:p186:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p187:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p188:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p189:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p190:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p191:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p192:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p193:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p194:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p195:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p196:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p197:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p198:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p199:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p200:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p201:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p202:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p203:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p204:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p205:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p206:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p207:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p208:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p209:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p210:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p211:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p212:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p213:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p214:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p215:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p216:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p217:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p218:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p219:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p220:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p221:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p222:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p223:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p224:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p225:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p226:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p227:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p228:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p229:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p230:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p231_rc1:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p232_rc1:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p233_rc1:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p234_rc1:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p235_rc1:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p236_rc1:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p237_rc1:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p238_rc1:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p239_rc1:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p240_rc1:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p241_rc1:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p242_rc1:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p243_rc1:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p244_rc1:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p245_rc1:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p246_rc1:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p247_rc1:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p248_rc1:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p249_rc1:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.5:p250_rc1:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.8:p1:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.8:p1-beta1:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.8:p1-beta2:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.8:p1-beta3:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.8:p1-beta4:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.8:p1-beta5:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.8:p1-rc1:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.8:p1-rc2:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.8:p2:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.8:p2-rc1:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.8:p2-rc2:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.8:p2-rc3:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.8:p3:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.8:p3-rc1:*:*:*:*:*:*
cpe:2.3:a:ntp:ntp:4.2.8:p3-rc2:*:*:*:*:*:*
Configuration 2
OR
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
Configuration 3
OR
cpe:2.3:a:netapp:oncommand_balance:-:*:*:*:*:*:*:*
cpe:2.3:a:netapp:oncommand_performance_manager:-:*:*:*:*:*:*:*
cpe:2.3:a:netapp:oncommand_unified_manager:-:*:*:*:*:clustered_data_ontap:*:*
Tenable Plugins
| ID | Name | Product | Family | Severity |
|---|---|---|---|---|
| 129259 | EulerOS 2.0 SP3 : ntp (EulerOS-SA-2019-2066) | Nessus | Huawei Local Security Checks | critical |
| 126847 | EulerOS 2.0 SP2 : ntp (EulerOS-SA-2019-1719) | Nessus | Huawei Local Security Checks | critical |
| 125010 | EulerOS Virtualization 3.0.1.0 : ntp (EulerOS-SA-2019-1557) | Nessus | Huawei Local Security Checks | critical |
| 123908 | EulerOS Virtualization 2.5.3 : ntp (EulerOS-SA-2019-1222) | Nessus | Huawei Local Security Checks | critical |
| 106497 | pfSense < 2.2.5 Multiple Vulnerabilities (SA-15_08) | Nessus | Firewalls | high |
| 93186 | SUSE SLES10 Security Update : ntp (SUSE-SU-2016:1912-1) | Nessus | SuSE Local Security Checks | critical |
| 92485 | GLSA-201607-15 : NTP: Multiple vulnerabilities | Nessus | Gentoo Local Security Checks | critical |
| 91403 | openSUSE Security Update : ntp (openSUSE-2016-649) | Nessus | SuSE Local Security Checks | critical |
| 91248 | SUSE SLES11 Security Update : ntp (SUSE-SU-2016:1311-1) | Nessus | SuSE Local Security Checks | critical |
| 90991 | SUSE SLED12 / SLES12 Security Update : ntp (SUSE-SU-2016:1247-1) | Nessus | SuSE Local Security Checks | critical |
| 90380 | GLSA-201604-03 : Xen: Multiple vulnerabilities (Venom) | Nessus | Gentoo Local Security Checks | critical |
| 89510 | Fedora 22 : ntp-4.2.6p5-36.fc22 (2016-34bc10a2c8) | Nessus | Fedora Local Security Checks | critical |
| 89461 | Fedora 23 : ntp-4.2.6p5-34.fc23 (2015-f5f5ec7b6b) | Nessus | Fedora Local Security Checks | critical |
| 89288 | Fedora 21 : ntp-4.2.6p5-34.fc21 (2015-77bfbc1bcd) | Nessus | Fedora Local Security Checks | critical |
| 88439 | F5 Networks BIG-IP : NTP vulnerability (SOL17518) | Nessus | F5 Networks Local Security Checks | critical |
| 87010 | SUSE SLED11 / SLES11 Security Update : ntp (SUSE-SU-2015:2058-1) | Nessus | SuSE Local Security Checks | critical |
| 86964 | openSUSE Security Update : ntp (openSUSE-2015-767) | Nessus | SuSE Local Security Checks | critical |
| 86682 | Debian DSA-3388-1 : ntp - security update | Nessus | Debian Local Security Checks | critical |
| 86664 | Slackware 13.0 / 13.1 / 13.37 / 14.0 / 14.1 / current : ntp (SSA:2015-302-03) | Nessus | Slackware Local Security Checks | critical |
| 86640 | Debian DLA-335-1 : ntp security update | Nessus | Debian Local Security Checks | critical |
| 86638 | Amazon Linux AMI : ntp (ALAS-2015-607) | Nessus | Amazon Linux Local Security Checks | critical |
| 86631 | Network Time Protocol Daemon (ntpd) 3.x / 4.x < 4.2.8p4 Multiple Vulnerabilities | Nessus | Misc. | critical |
| 86630 | Ubuntu 12.04 LTS / 14.04 LTS / 15.04 / 15.10 : ntp vulnerabilities (USN-2783-1) | Nessus | Ubuntu Local Security Checks | critical |
| 86519 | FreeBSD : ntp -- 13 low- and medium-severity vulnerabilities (c4a18a12-77fc-11e5-a687-206a8a720317) | Nessus | FreeBSD Local Security Checks | critical |