Freeipa: user can obtain a hash of the passwords of all domain users and perform offline brute force

A vulnerability was found in FreeIPA in a way when a Kerberos TGS-REQ is encrypted using the client’s session key. This key is different for each new session, which protects it from brute force attacks. However, the ticket it contains is encrypted using the target principal key directly. For user principals, this key is a hash of a public per-principal randomly-generated salt and the user’s password. If a principal is compromised it means the attacker would be able to retrieve tickets encrypted to any principal, all of them being encrypted by their own key directly. By taking these tickets and salts offline, the attacker could run brute force attacks to find character strings able to decrypt tickets when combined to a principal salt (i.e. find the principal’s password).

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

使用具有不充分计算复杂性的口令哈希

Red Hat FreeIPA 安全漏洞

Red Hat FreeIPA是美国红帽（Red Hat）公司的一套集成的安全信息管理解决方案。该产品主要为Linux和Unix计算机网络提供身份管理、策略管理和审计管理（IPA）等功能。 Red Hat FreeIPA存在安全漏洞，该漏洞源于攻击者可通过暴力攻击来查找密码。

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