#VU47105 Deserialization of Untrusted Data in jackson-databind - CVE-2020-24750

Vulnerability identifier: #VU47105

Vulnerability risk: High

CVSSv4.0: 7.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]

CVE-ID: CVE-2020-24750

CWE-ID: CWE-502

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
jackson-databind
Universal components / Libraries / Libraries used by multiple products

Vendor: FasterXML

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

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. A remote attacker can execute arbitrary code on the target system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

jackson-databind: 2.0.0 - 2.0.6, 2.1.0 - 2.1.5, 2.2.0 - 2.2.4, 2.3.0 - 2.3.5, 2.4.0 - 2.4.6.1, 2.5.0 - 2.5.5, 2.6.0 - 2.6.8, 2.7.0 - 2.7.9.7, 2.8.0 - 2.8.11.6, 2.9.0 - 2.9.10.5

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External links
https://github.com/FasterXML/jackson-databind/commit/ad5a630174f08d279504bc51ebba8772fd71b86b
https://github.com/FasterXML/jackson-databind/issues/2798

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.