// For flags

CVE-2014-9294

ntp: ntp-keygen uses weak random number generator and seed when generating MD5 keys

Severity Score

7.5
*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

util/ntp-keygen.c in ntp-keygen in NTP before 4.2.7p230 uses a weak RNG seed, which makes it easier for remote attackers to defeat cryptographic protection mechanisms via a brute-force attack.

util/ntp-keygen.c en ntp-keygen en NTP anterior a 4.2.7p230 emplea una semilla RNG débil, esto hace que sea más fácil romper los mecanismos de cifrado atacantes remotos mediante un ataque de fuerza bruta.

It was found that ntp-keygen used a weak method for generating MD5 keys. This could possibly allow an attacker to guess generated MD5 keys that could then be used to spoof an NTP client or server. Note: it is recommended to regenerate any MD5 keys that had explicitly been generated with ntp-keygen; the default installation does not contain such keys.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
Attack Vector
Network
Attack Complexity
High
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2014-12-05 CVE Reserved
  • 2014-12-20 CVE Published
  • 2024-08-01 EPSS Updated
  • 2024-08-06 CVE Updated
  • 2024-08-06 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-338: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
CAPEC
References (23)
URL Tag Source
http://advisories.mageia.org/MGASA-2014-0541.html X_refsource_confirm
http://bugs.ntp.org/show_bug.cgi?id=2666 X_refsource_confirm
http://secunia.com/advisories/62209 Third Party Advisory
http://www.kb.cert.org/vuls/id/852879 Third Party Advisory
http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html X_refsource_confirm
http://www.securityfocus.com/bid/71762 Vdb Entry
https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04790232 X_refsource_confirm
https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04916783 X_refsource_confirm
https://kc.mcafee.com/corporate/index?page=content&id=SB10103 X_refsource_confirm
https://www.arista.com/en/support/advisories-notices/security-advisories/1047-security-advisory-8 X_refsource_misc
URL Date SRC
http://bk1.ntp.org/ntp-dev/util/ntp-keygen.c?PAGE=diffs&REV=4eae1b72298KRoBQmX-y8URCiRPH5g 2024-08-06
URL Date SRC
URL Date SRC
http://marc.info/?l=bugtraq&m=142469153211996&w=2 2021-11-17
http://marc.info/?l=bugtraq&m=142590659431171&w=2 2021-11-17
http://marc.info/?l=bugtraq&m=142853370924302&w=2 2021-11-17
http://marc.info/?l=bugtraq&m=144182594518755&w=2 2021-11-17
http://rhn.redhat.com/errata/RHSA-2014-2025.html 2021-11-17
http://rhn.redhat.com/errata/RHSA-2015-0104.html 2021-11-17
http://support.ntp.org/bin/view/Main/SecurityNotice 2021-11-17
http://www.mandriva.com/security/advisories?name=MDVSA-2015:003 2021-11-17
https://bugzilla.redhat.com/show_bug.cgi?id=1176035 2015-01-28
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20141222-ntpd 2021-11-17
https://access.redhat.com/security/cve/CVE-2014-9294 2015-01-28
https://access.redhat.com/articles/1305723 2015-01-28
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"
 <= 4.2.7
Search vendor "Ntp" for product "Ntp" and version " <= 4.2.7"
-
Affected