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CVE-2017-7525: Jackson Deserializer security vulnerability via default typing (CVE-2017-7525) · Issue #1599 · FasterXML/jackson-databind
A deserialization flaw was discovered in the jackson-databind, versions before 2.6.7.1, 2.7.9.1 and 2.8.9, which could allow an unauthenticated user to perform code execution by sending the maliciously crafted input to the readValue method of the ObjectMapper.
I suggest you to use black list like this
"^bsh[.].", "^com[.]google[.]inject[.].", "^com[.]mchange[.]v2[.]c3p0[.].", "^com[.]sun[.]jndi[.].", "^com[.]sun[.]corba[.].", "^com[.]sun[.]javafx[.].", "^com[.]sun[.]org[.]apache[.]regex[.]internal[.].", "^java[.]awt[.].", "^java[.]rmi[.].", "^javax[.]management[.].", "^javax[.]naming[.].", "^javax[.]script[.].", "^javax[.]swing[.].", "^org[.]apache[.]commons[.]beanutils[.].", "^org[.]apache[.]commons[.]collections[.]functors[.].", "^org[.]apache[.]myfaces[.].", "^org[.]apache[.]wicket[.].", ".org[.]apache[.]xalan.", "^org[.]codehaus[.]groovy[.]runtime[.].", "^org[.]hibernate[.].", "^org[.]python[.].", "^org[.]springframework…", "^sun[.]rmi[.].", "^javax[.]imageio[.].*", "^java[.]util[.]ServiceLoader$", "^java[.]net[.]URLClassLoader$”
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FasterXML jackson-databind through 2.8.10 and 2.9.x through 2.9.3 allows unauthenticated remote code execution because of an incomplete fix for the CVE-2017-7525 deserialization flaw. This is exploitable by sending maliciously crafted JSON input to the readValue method of the ObjectMapper, bypassing a blacklist that is ineffective if the Spring libraries are available in the classpath.