| 标题 | java-json-tools jackson-coreutils 2.0 SSRF + BigDecimal Amplification Remote DoS |
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| 描述 | SSRF + BigDecimal Amplification Remote DoS Chain via fromURL() and WRITE_BIGDECIMAL_AS_PLAIN
The combination of JsonLoader.fromURL() (which performs no URL validation) and the default WRITE_BIGDECIMAL_AS_PLAIN configuration in JacksonUtils.newMapper() creates a remote denial-of-service chain. An attacker-controlled URL can serve a tiny JSON payload (e.g., {"x": 1e2000000000}) that expands to ~2GB in memory when serialized via BigDecimal.toPlainString(), causing OutOfMemoryError. |
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| 来源 | ⚠️ https://github.com/java-json-tools/jackson-coreutils/issues/64 |
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| 用户 | York Shen - Yong Shen - PayPal Cyber Security Team (UID 100171) |
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| 提交 | 2026-07-29 06時48分 (1 月前) |
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| 管理 | 2026-09-07 07時45分 (1 month later) |
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| 状态 | 已接受 |
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| VulDB条目 | 399511 [java-json-tools jackson-coreutils 2.0 URL Validation JsonLoader.java JsonLoader.fromURL 权限提升] |
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| 积分 | 20 |
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