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CVE-2020-27780

Опубликовано: 27 окт. 2020
Источник: redhat
CVSS3: 8.1
EPSS Низкий

Описание

A flaw was found in Linux-Pam in versions prior to 1.5.1 in the way it handle empty passwords for non-existing users. When the user doesn't exist PAM try to authenticate with root and in the case of an empty password it successfully authenticate.

A flaw was found in Linux-PAM in the way it handles empty passwords for non-existing users. When the user doesn't exist, PAM tries to authenticate with root and with an empty password, authentication is successful. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 5pamNot affected
Red Hat Enterprise Linux 6pamNot affected
Red Hat Enterprise Linux 7pamNot affected
Red Hat Enterprise Linux 8pamNot affected

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Дополнительная информация

Статус:

Moderate
Дефект:
CWE-287
https://bugzilla.redhat.com/show_bug.cgi?id=1901094pam: authentication bypass when the user doesn't exist and root password is blank

EPSS

Процентиль: 62%
0.00436
Низкий

8.1 High

CVSS3

Связанные уязвимости

CVSS3: 9.8
ubuntu
около 5 лет назад

A flaw was found in Linux-Pam in versions prior to 1.5.1 in the way it handle empty passwords for non-existing users. When the user doesn't exist PAM try to authenticate with root and in the case of an empty password it successfully authenticate.

CVSS3: 9.8
nvd
около 5 лет назад

A flaw was found in Linux-Pam in versions prior to 1.5.1 in the way it handle empty passwords for non-existing users. When the user doesn't exist PAM try to authenticate with root and in the case of an empty password it successfully authenticate.

CVSS3: 9.8
msrc
около 5 лет назад

A flaw was found in Linux-Pam in versions prior to 1.5.1 in the way it handle empty passwords for non-existing users. When the user doesn't exist PAM try to authenticate with root and in the case of an empty password it successfully authenticate.

CVSS3: 9.8
debian
около 5 лет назад

A flaw was found in Linux-Pam in versions prior to 1.5.1 in the way it ...

github
больше 3 лет назад

A flaw was found in Linux-Pam in versions prior to 1.5.1 in the way it handle empty passwords for non-existing users. When the user doesn't exist PAM try to authenticate with root and in the case of an empty password it successfully authenticate.

EPSS

Процентиль: 62%
0.00436
Низкий

8.1 High

CVSS3