| タイトル | Github ShifuML 0.12.0 Expression Language Injection |
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| 説明 | Description:
The Shifu project of ShifuML https://github.com/ShifuML/shifu is vulnerable to Java Expression Language Injection Via FilterExpression parameter.
Impact:
The quick impact here is Code Execution, but depending upon how the project is being used it can either lead to Initial Access Via Remote Code Execution or Local Privilege Escalation VIA Rce if the Shifu binary is being given sudo permission.
Steps To Reproduce:
Check out the Proof-Of-Concept Video.
RootCause:
https://github.com/ShifuML/shifu/blob/20f589158adfc011c505664cf7bdf31e36ed62fa/src/main/java/ml/shifu/shifu/core/DataPurifier.java#L53
There are multiple occurrences of JEXL.CreateExpression and evaluation.
All them can lead to Code Execution.
Mitigation:
JEXL Expression should be evaluated in a sandboxed Environment.
https://blog.gypsyengineer.com/en/security/detecting-jexl-injections-with-codeql.html |
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| ソース | ⚠️ https://drive.google.com/file/d/1ST3dD-iwUBgBNZ8tGaBbqVi1zRh5rLND/view?usp=sharing |
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| ユーザー | w3bspl01t3r (UID 39229) |
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| 送信 | 2023年12月26日 21:50 (2 年 ago) |
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| モデレーション | 2023年12月28日 09:48 (1 day later) |
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| ステータス | 承諾済み |
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| VulDBエントリ | 249151 [ShifuML shifu 0.12.0 Java Expression Language DataPurifier.java FilterExpression 特権昇格] |
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| ポイント | 20 |
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