// For flags

CVE-2015-7871

NTP NAK To The Future

Severity Score

9.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

Los paquetes Crypto-NAK en ntpd en NTP 4.2.x en versiones anteriores a 4.2.8p4, y 4.3.x en versiones anteriores a 4.3.77 permiten que atacantes remotos eludan la autenticación.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2015-10-19 CVE Reserved
  • 2015-10-21 CVE Published
  • 2024-03-10 EPSS Updated
  • 2024-08-06 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-287: Improper Authentication
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
>= 4.2.6 < 4.2.8
Search vendor "Ntp" for product "Ntp" and version " >= 4.2.6 < 4.2.8"
-
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
>= 4.3.0 < 4.3.77
Search vendor "Ntp" for product "Ntp" and version " >= 4.3.0 < 4.3.77"
-
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p186
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p187
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p188
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p189
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p190
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p191
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p192
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p193
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p194
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p195
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p196
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p197
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p198
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p199
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p200
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p201
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p202
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p203
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p204
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p205
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p206
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p207
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p208
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p209
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p210
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p211
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p212
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p213
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p214
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p215
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p216
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p217
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p218
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p219
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p220
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p221
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p222
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p223
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p224
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p225
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p226
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p227
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p228
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p229
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p230
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p231_rc1
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p232_rc1
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p233_rc1
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p234_rc1
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p235_rc1
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p236_rc1
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p237_rc1
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p238_rc1
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p239_rc1
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p240_rc1
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p241_rc1
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p242_rc1
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p243_rc1
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p244_rc1
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p245_rc1
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p246_rc1
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p247_rc1
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p248_rc1
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p249_rc1
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.5
Search vendor "Ntp" for product "Ntp" and version "4.2.5"
p250_rc1
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.8
Search vendor "Ntp" for product "Ntp" and version "4.2.8"
p1
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.8
Search vendor "Ntp" for product "Ntp" and version "4.2.8"
p1-beta1
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.8
Search vendor "Ntp" for product "Ntp" and version "4.2.8"
p1-beta2
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.8
Search vendor "Ntp" for product "Ntp" and version "4.2.8"
p1-beta3
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.8
Search vendor "Ntp" for product "Ntp" and version "4.2.8"
p1-beta4
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.8
Search vendor "Ntp" for product "Ntp" and version "4.2.8"
p1-beta5
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.8
Search vendor "Ntp" for product "Ntp" and version "4.2.8"
p1-rc1
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.8
Search vendor "Ntp" for product "Ntp" and version "4.2.8"
p1-rc2
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.8
Search vendor "Ntp" for product "Ntp" and version "4.2.8"
p2
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.8
Search vendor "Ntp" for product "Ntp" and version "4.2.8"
p2-rc1
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.8
Search vendor "Ntp" for product "Ntp" and version "4.2.8"
p2-rc2
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.8
Search vendor "Ntp" for product "Ntp" and version "4.2.8"
p2-rc3
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.8
Search vendor "Ntp" for product "Ntp" and version "4.2.8"
p3
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.8
Search vendor "Ntp" for product "Ntp" and version "4.2.8"
p3-rc1
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.8
Search vendor "Ntp" for product "Ntp" and version "4.2.8"
p3-rc2
Affected
Ntp
Search vendor "Ntp"
Ntp
Search vendor "Ntp" for product "Ntp"
4.2.8
Search vendor "Ntp" for product "Ntp" and version "4.2.8"
p3-rc3
Affected
Debian
Search vendor "Debian"
Debian Linux
Search vendor "Debian" for product "Debian Linux"
7.0
Search vendor "Debian" for product "Debian Linux" and version "7.0"
-
Affected
Debian
Search vendor "Debian"
Debian Linux
Search vendor "Debian" for product "Debian Linux"
8.0
Search vendor "Debian" for product "Debian Linux" and version "8.0"
-
Affected
Debian
Search vendor "Debian"
Debian Linux
Search vendor "Debian" for product "Debian Linux"
9.0
Search vendor "Debian" for product "Debian Linux" and version "9.0"
-
Affected
Netapp
Search vendor "Netapp"
Oncommand Balance
Search vendor "Netapp" for product "Oncommand Balance"
--
Affected
Netapp
Search vendor "Netapp"
Oncommand Performance Manager
Search vendor "Netapp" for product "Oncommand Performance Manager"
--
Affected
Netapp
Search vendor "Netapp"
Oncommand Unified Manager
Search vendor "Netapp" for product "Oncommand Unified Manager"
-clustered_data_ontap
Affected
Netapp
Search vendor "Netapp"
Clustered Data Ontap
Search vendor "Netapp" for product "Clustered Data Ontap"
--
Affected
Netapp
Search vendor "Netapp"
Data Ontap
Search vendor "Netapp" for product "Data Ontap"
-7-mode
Affected