#VU10257 Deserialization of untrusted data in jackson-databind - CVE-2017-17485

Vulnerability identifier: #VU10257

Vulnerability risk: High

CVSSv4.0: 8.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]

CVE-ID: CVE-2017-17485

CWE-ID: CWE-502

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 execute arbitrary code on the target system.

The weakness exists in the FasterXML jackson-databind library due to improper validation of user-input handled by the readValue method of the ObjectMapper object. A remote attacker can send malicious input to the vulnerable method of a web application that uses the Spring library in the application's classpath and execute arbitrary code with elevated privileges.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation
The vulnerability is addressed in the following versions: 2.7.9.2 and 2.8.11.

Vulnerable software versions

jackson-databind: 2.7.9 - 2.7.9.1, 2.8.0 - 2.8.10, 2.9.0 - 2.9.3

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External links
https://github.com/FasterXML/jackson-databind/issues/1855

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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.