PT-2017-8050 · Ntf+3 · Ntp+3
Yihan Lian
·
Publicado
2016-05-11
·
Atualizado
2024-06-15
·
CVE-2016-2517
CVSS v3.1
5.3
Média
| Vetor | AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
NTP versions 4.2.8p7 and earlier, 4.3.x before 4.3.92
Description
The issue allows remote attackers to cause a denial of service by preventing subsequent authentication. This is achieved by leveraging knowledge of the
controlkey or requestkey and sending a crafted packet to ntpd, which changes the value of trustedkey, controlkey, or requestkey. The vulnerability exists due to a regression of a previous issue.Recommendations
For NTP versions 4.2.8p7 and earlier: update to version 4.2.8p7 or later.
For NTP versions 4.3.x before 4.3.92: update to version 4.3.92 or later.
As a temporary workaround, consider restricting access to the
ntpd service to minimize the risk of exploitation.Correção
DoS
RCE
Encontrou algum problema na descrição? Tem algo a acrescentar? Fique à vontade para nos escrever 👾
Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Alt Linux
Freebsd
Ntp
Suse