GHSA-3xf8-g8gr-g7rh · 深刻度： medium · エコシステム： maven — Graylog session fixation vulnerability through cookie injection
Graylog is a free and open log management platform. Starting in version 4.3.0 and prior to versions 5.1.11 and 5.2.4, reauthenticating with an existing session cookie would re-use that session id, even if for different user credentials. In this case, the pre-existing session could be used to gain elevated access to an existing Graylog login session, provided the malicious user could successfully inject their session cookie into someone else's browser. The complexity of such an attack is high, because it requires presenting a spoofed login screen and injection of a session cookie into an existing browser, potentially through a cross-site scripting attack. No such attack has been discovered. Graylog 5.1.11 and 5.2.4, and any versions of the 6.0 development branch, contain patches to not re-use sessions under any circumstances. Some workarounds are available. Using short session expiration and explicit log outs of unused sessions can help limiting the attack vector. Unpatched this vulnerability exists, but is relatively hard to exploit. A proxy could be leveraged to clear the `authentication` cookie for the Graylog server URL for the `/api/system/sessions` endpoint, as that is the only one vulnerable.
総合評価: CVE-2024-24823 は低リスク（34.6/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 0.41%、33 パーセンタイル） 推奨対応: 悪用情報と EPSS の推移を監視し、必要に応じて優先度を見直してください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置（高いほど相対的に深刻）を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ（新 − 旧） |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.13% | 0.41% | +0.28% |
| 2 | 2025-11-21 | 0.25% | 0.13% | -0.12% |
| 3 | 2025-11-18 | — | 0.25% | — |
EPSS の全履歴 （全 9 件）
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 5.7 | 3.1 | MEDIUM |
|
0.5 | 5.2 | [email protected] |
| 4.4 | 3.1 | MEDIUM |
|
1.3 | 2.7 | [email protected] |
GHSA-3xf8-g8gr-g7rh · 深刻度： medium · エコシステム： maven — Graylog session fixation vulnerability through cookie injection