Описание
It was found that sssd's sysdb_search_user_by_upn_res() function before 1.16.0 did not sanitize requests when querying its local cache and was vulnerable to injection. In a centralized login environment, if a password hash was locally cached for a given user, an authenticated attacker could use this flaw to retrieve it.
It was found that sssd's sysdb_search_user_by_upn_res() function did not sanitize requests when querying its local cache and was vulnerable to injection. In a centralized login environment, if a password hash was locally cached for a given user, an authenticated attacker could use this flaw to retrieve it.
Отчет
This issue affects the versions of sssd as shipped with Red Hat Satellite version 6.0. More recent versions of Satellite no longer ships sssd. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
Меры по смягчению последствий
It is possible to disable manually credential caching :
- Stop the sssd service
- Delete the cache (rm -f /var/lib/sss/db/* /var/log/sssd/*) or manually remove the hashes for the database
- In the sssd configuration file, change cache_credentials to False for each domains
- start the sssd service again However, tools such as realmd & ipa-client-install might enable credential caching, and should be used with care.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 5 | sssd | Not affected | ||
| Red Hat Satellite 6 | sssd | Affected | ||
| Red Hat Enterprise Linux 6 | ding-libs | Fixed | RHSA-2018:1877 | 19.06.2018 |
| Red Hat Enterprise Linux 6 | sssd | Fixed | RHSA-2018:1877 | 19.06.2018 |
| Red Hat Enterprise Linux 7 | sssd | Fixed | RHSA-2017:3379 | 05.12.2017 |
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Дополнительная информация
Статус:
EPSS
4.3 Medium
CVSS3
Связанные уязвимости
It was found that sssd's sysdb_search_user_by_upn_res() function before 1.16.0 did not sanitize requests when querying its local cache and was vulnerable to injection. In a centralized login environment, if a password hash was locally cached for a given user, an authenticated attacker could use this flaw to retrieve it.
It was found that sssd's sysdb_search_user_by_upn_res() function before 1.16.0 did not sanitize requests when querying its local cache and was vulnerable to injection. In a centralized login environment, if a password hash was locally cached for a given user, an authenticated attacker could use this flaw to retrieve it.
It was found that sssd's sysdb_search_user_by_upn_res() function befor ...
EPSS
4.3 Medium
CVSS3