| タイトル | diem-project diem 116974edfb9a5b8bd69cb13586dc62bcdbb485ad Cryptographically Weak PRNG |
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| 説明 | `dmCorePlugin/lib/basic/dmString.php` implements `dmString::random()` by repeatedly calling PHP `rand()`. The password-reset action in `dmCorePlugin/plugins/dmUserPlugin/modules/dmUser/lib/BasedmUserActions.class.php` uses a 12-character value from this function as a bearer `forgot_password_code`, and the persistent-login path in `dmSecurityUser.class.php` derives its remembered-login key from the same output. The reset handler accepts the code to set a new password, while `dmRememberMeFilter` authenticates a request based on a matching key. These account-authentication tokens are generated by a non-cryptographic PRNG rather than a CSPRNG, so deployments where an attacker can predict or recover the PRNG state are exposed to account takeover. |
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| ソース | ⚠️ https://github.com/diem-project/diem/issues/458 |
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| ユーザー | cnluminous (UID 98136) |
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| 送信 | 2026年09月30日 18:06 (18 日 ago) |
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| モデレーション | 2026年10月18日 11:52 (18 days later) |
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| ステータス | 承諾済み |
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| VulDBエントリ | 421689 [diem-project diem 迄 116974edfb9a5b8bd69cb13586dc62bcdbb485ad dmString.php dmString::random 弱い暗号化] |
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| ポイント | 20 |
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