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High 8.1

FreeIPAに認証情報を解読される脆弱性、ドメイン利用者のパスワードを推測されるおそれ

CVE-2024-3183 First seen on SecPulse

Summary

2024年6月に公表された、FreeIPAの脆弱性です。ユーザー権限を奪われた攻撃者が、Kerberosのチケットを手に入れてオフラインで総当たり攻撃を行い、ドメイン利用者のパスワードを割り出すおそれがあります。CVSSは8.1で、深刻度は高とされています。修正版の情報は確認できていないため、最新の情報を確認してください。

AI summary

Produced by SecPulse using an external AI model; it may contain mistakes. Check the original description and references below before acting on it.

2024年6月に公表された、FreeIPAの脆弱性です。ユーザー権限を奪われた攻撃者が、Kerberosのチケットを手に入れてオフラインで総当たり攻撃を行い、ドメイン利用者のパスワードを割り出すおそれがあります。CVSSは8.1で、深刻度は高とされています。修正版の情報は確認できていないため、最新の情報を確認してください。

Fix status by distribution

Records published by each distribution for this CVE. Fixed versions differ by release; check each link.

Original description The description as published by the source.

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).

Source: CVE.org (CVE Program・cvelistV5) NVD

References

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