| 标题 | Public Knowledge Project ojs, pkp-lib 3.5.0 Predictable API Key Generation |
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| 描述 | When a user generates an API key via their profile settings, the key is
computed as:
$user->setData('apiKey', sha1(time()));
sha1(time()) produces a 40-character hex string seeded by the current Unix
timestamp — a sequential integer with at most ~31.4 bits of entropy over a
30-day window (2,592,000 candidates). An attacker who knows the approximate
date the key was generated can recover it through brute-force in under 2
seconds of SHA1 computation, then construct a valid HS256 JWT and authenticate
against the REST API as the target user without their password. |
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| 来源 | ⚠️ https://github.com/pkp/pkp-lib/issues/12951 |
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| 用户 | Razielx64 (UID 97461) |
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| 提交 | 2026-06-26 15時00分 (2 月前) |
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| 管理 | 2026-08-14 21時48分 (2 months later) |
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| 状态 | 已接受 |
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| VulDB条目 | 390119 [pkp pkp-lib 3.3.0/3.4.0/3.5.0 API Key Generation APIProfileForm.php setData apiKey 弱加密] |
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| 积分 | 20 |
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