#VU19937 Information disclosure in jackson-databind


Published: 2019-08-06

Vulnerability identifier: #VU19937

Vulnerability risk: Medium

CVSSv3.1:

CVE-ID: CVE-2019-14439

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

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

Vendor: FasterXML

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


CPE

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?


Latest bulletins with this vulnerability