| 제목 | https://github.com/jeecgboot/JeecgBoot <=3.91 SQL Injection |
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| 설명 | The dictionary query endpoint /sys/api/queryFilterTableDictInfo in JeecgBoot contains a SQL injection vulnerability caused by two compounding security flaws:
Signature Bypass: The endpoint enforces signature verification (@SignatureCheck), but due to differences in JSON serialization behavior between Java (fastjson) and other languages (e.g. Python), an attacker can reproduce a valid signature by sorting parameters alphabetically, effectively bypassing the signature check.
Blacklist Bypass: After passing signature verification, the filterSql parameter is checked by SqlInjectionUtil.specialFilterContentForDictSql. However, the blacklist only matches keywords followed by a space (e.g. select ). Using select( without a space bypasses the check entirely. |
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| 원천 | ⚠️ https://github.com/nn0nkey/JD-Security-SHENYI-Team/blob/main/JeecgBoot_SQL_Injection_Signature_Blacklist_Bypass.md |
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| 사용자 | JD Security SHENYI Team (UID 97436) |
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| 제출 | 2026. 04. 17. AM 09:39 (2 개월 ago) |
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| 모더레이션 | 2026. 05. 09. AM 08:59 (22 days later) |
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| 상태 | 중복 |
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| VulDB 항목 | 231896 [JeecgBoot 까지 3.5.1 queryFilterTableDictInfo SQL 주입] |
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| 포인트들 | 0 |
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