CVE-2020-24750 Unsafe Deserialization in jackson-databind
Attackers can execute arbitrary code via deserialization gadgets in jackson-databind when polymorphic typing is enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-24750?
CVE-2020-24750 is a high-severity unsafe deserialization vulnerability in Debian Debian Linux, published on 17 Sep 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
FasterXML jackson-databind 2.x before 2.9.10.6 mishandles the interaction between serialization gadgets and typing, related to com.pastdev.httpcomponents.configuration.JndiConfiguration.
Weakness: CWE-502
Which versions are affected by CVE-2020-24750?
4 open source packages ship an affected version, including com.fasterxml.jackson.core:jackson-databind. It affects 26 products.
| Package | Affected | Fixed in |
|---|---|---|
com.fasterxml.jackson.core:jackson-databind Maven | From 2.0 | 2.6.7.5 |
com.fasterxml.jackson.core:jackson-databind Maven | From 2.0 | 2.6.7.5 |
com.fasterxml.jackson.core:jackson-databind Maven | From 2.7.0 | 2.9.10.6 |
com.fasterxml.jackson.core:jackson-databind Maven | From 2.7.0 | 2.9.10.6 |
Linux distribution packages (2)
rh-maven35-jackson-databind Red Hat:rhel_software_collections:3::el7 | All versions | 0:2.7.6-2.11.el7 |
rh-maven35-jackson-databind-javadoc Red Hat:rhel_software_collections:3::el7 | All versions | 0:2.7.6-2.11.el7 |
Products include Debian Debian Linux, Fasterxml Jackson-Databind, Oracle Agile Product Lifecycle Management, Oracle Application Testing Suite, Oracle Autovue for Agile Product Lifecycle Management, Oracle Banking Corporate Lending Process Management and 20 more.
How do I fix CVE-2020-24750?
Upgrade com.fasterxml.jackson.core:jackson-databind to a fixed version for your release line: 2.6.7.5 or 2.9.10.6.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2020-24750 being exploited?
There is no known exploitation of CVE-2020-24750 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as CLEANSTART-2026-EV27822, DEBIAN-CVE-2020-24750, GHSA-qjw2-hr98-qgfh, RHSA-2020:4173, ROOT-APP-MAVEN-CVE-2020-24750, UBUNTU-CVE-2020-24750.