A flaw was discovered in FasterXML jackson-databind in all versions before 2.9.10 and 2.10.0, where it would permit polymorphic deserialization of malicious objects using the xalan JNDI gadget when used in conjunction with polymorphic type handling methods such as enableDefaultTyping()
or when @JsonTypeInfo is using Id.CLASS
or Id.MINIMAL_CLASS
or in any other way which ObjectMapper.readValue might instantiate objects from unsafe sources. An attacker could use this flaw to execute arbitrary code.
access.redhat.com/errata/RHSA-2020:0729
bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14893
github.com/FasterXML/jackson-databind/commit/998efd708284778f29d83d7962a9bd935c228317
github.com/FasterXML/jackson-databind/issues/2469
lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0@%3Cissues.bookkeeper.apache.org%3E
lists.apache.org/thread.html/rf1bbc0ea4a9f014cf94df9a12a6477d24a27f52741dbc87f2fd52ff2@%3Cissues.geode.apache.org%3E
nvd.nist.gov/vuln/detail/CVE-2019-14893
security.netapp.com/advisory/ntap-20200327-0006
www.oracle.com/security-alerts/cpujul2020.html
www.oracle.com/security-alerts/cpuoct2020.html