Code injection in FasterXML jackson-databind



Published: 2020-02-19 | Updated: 2020-02-24
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-8840
CWE-ID CWE-94
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
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jackson-databind
Universal components / Libraries / Libraries used by multiple products

Vendor FasterXML

Security Bulletin

This security bulletin contains information about 1 vulnerabilities.

Updated: 24.02.2020

Updated list of fixed versions.

1) Code Injection

EUVDB-ID: #VU25469

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2020-8840

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to absence of xbean-reflect/JNDI gadget blocking. A remote attacker can pass specially crafted input to the application and execute arbitrary Java code on the system, as demonstrated by org.apache.xbean.propertyeditor.JndiConverter.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

jackson-databind: 2.9.0 - 2.9.10.2, 2.8.0 - 2.8.11.4, 2.7.0 - 2.7.9.6, 2.6.0 - 2.6.8, 2.5.0 - 2.5.5, 2.4.0 - 2.4.6.1, 2.3.0 - 2.3.5, 2.2.0 - 2.2.4, 2.1.0 - 2.1.5, 2.0.0 - 2.0.6


CPE2.3 External links

http://github.com/FasterXML/jackson-databind/issues/2620

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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