Information disclosure in FasterXML jackson-databind



Published: 2019-07-30 | Updated: 2019-09-16
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-14439
CWE-ID CWE-200
Exploitation vector Network
Public exploit N/A
Vulnerable software
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jackson-databind
Universal components / Libraries / Libraries used by multiple products

Vendor FasterXML

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Information disclosure

EUVDB-ID: #VU19937

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2019-14439

CWE-ID: CWE-200 - Information Exposure

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a polymorphic typing issue when Default Typing is enabled for an externally exposed JSON endpoint and the service has the logback jar in the classpath. A remote attacker can send a specially crafted JSON message and gain unauthorized access to sensitive information on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

jackson-databind: 2.9.0 - 2.9.9.1, 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, 2.1.0 - 2.1.4, 2.0.0 - 2.0.4


CPE2.3 External links

http://github.com/FasterXML/jackson-databind/commit/ad418eeb974e357f2797aef64aa0e3ffaaa6125b
http://github.com/FasterXML/jackson-databind/compare/jackson-databind-2.9.9.1...jackson-databind-2.9.9.2
http://github.com/FasterXML/jackson-databind/issues/2389

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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