Описание
Untrusted search path vulnerability in ssh-agent.c in ssh-agent in OpenSSH before 7.4 allows remote attackers to execute arbitrary local PKCS#11 modules by leveraging control over a forwarded agent-socket.
It was found that ssh-agent could load PKCS#11 modules from arbitrary paths. An attacker having control of the forwarded agent-socket on the server, and the ability to write to the filesystem of the client host, could use this flaw to execute arbitrary code with the privileges of the user running ssh-agent.
Отчет
In order to exploit this flaw, the attacker needs to have control of the forwarded agent-socket and the ability to write to the filesystem of the host running ssh-agent. Because of this restriction for successful exploitation, this issue has been rated as having Moderate security impact. A future update may address this flaw.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 4 | openssh | Will not fix | ||
| Red Hat Enterprise Linux 5 | openssh | Will not fix | ||
| Red Hat Enterprise Linux 6 | openssh | Will not fix | ||
| Red Hat Enterprise Linux 7 | openssh | Fixed | RHSA-2017:2029 | 01.08.2017 |
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Дополнительная информация
Статус:
6.6 Medium
CVSS3
4.6 Medium
CVSS2
Связанные уязвимости
Untrusted search path vulnerability in ssh-agent.c in ssh-agent in OpenSSH before 7.4 allows remote attackers to execute arbitrary local PKCS#11 modules by leveraging control over a forwarded agent-socket.
Untrusted search path vulnerability in ssh-agent.c in ssh-agent in OpenSSH before 7.4 allows remote attackers to execute arbitrary local PKCS#11 modules by leveraging control over a forwarded agent-socket.
Untrusted search path vulnerability in ssh-agent.c in ssh-agent in Ope ...
Untrusted search path vulnerability in ssh-agent.c in ssh-agent in OpenSSH before 7.4 allows remote attackers to execute arbitrary local PKCS#11 modules by leveraging control over a forwarded agent-socket.
Уязвимость агента ssh-agent средства криптографической защиты OpenSSH, позволяющая нарушителю выполнить произвольный код
6.6 Medium
CVSS3
4.6 Medium
CVSS2