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CVE-2020-9547 is an unsafe deserialization vulnerability in FasterXML jackson-databind 2.x before 2.9.10.4. Jackson Databind mishandles the interaction between serialization gadgets and type handling, permitting use of the ibatis-sqlmap com.ibatis.sqlmap.engine.transaction.jta.JtaTransactionConfig gadget in vulnerable configurations. Applications that deserialize attacker-controlled data while unsafe polymorphic typing is enabled can be susceptible to gadget-chain exploitation.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos (2 hidden).
This repository contains a proof-of-concept (POC) exploit for CVE-2020-9547, a remote code execution vulnerability in the FasterXML/jackson-databind Java library. The main file, Poc.java, demonstrates how enabling default typing in Jackson's ObjectMapper and deserializing a specially crafted JSON payload can trigger a JNDI LDAP lookup. The payload references an LDAP endpoint (ldap://localhost:1389/Exploit), which, if controlled by an attacker, could serve a malicious Java class and achieve remote code execution. The repository is minimal, with only a Java POC and a brief README. No actual malicious LDAP server is included; the code is intended to demonstrate the vulnerability trigger, not to deliver a full exploit chain.
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A vulnerability referenced by the CIQ crlsa-2020_1644 security update; no technical details are provided in the content.
A Jackson Databind vulnerability involving serialization gadgets in ibatis-sqlmap.
A Jackson Databind deserialization issue involving serialization gadgets in ibatis-sqlmap.
Jackson-databind deserialization vulnerability involving serialization gadgets in ibatis-sqlmap.
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Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
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