#VU27022 Code Injection in Dropwizard - CVE-2020-11002

Vulnerability identifier: #VU27022

Vulnerability risk: High

CVSSv4.0: 6.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2020-11002

CWE-ID: CWE-94

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Dropwizard
Web applications / JS libraries

Vendor: Coda Hale

Description

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

The vulnerability exists due to improper input validation in the self-validating feature. A remote authenticated attacker can inject arbitrary Java EL expressions and execute arbitrary code on the target system.

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

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Dropwizard: 1.3.0 - 2.0.2

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External links
https://docs.jboss.org/hibernate/validator/6.1/reference/en-US/html_single/#section-hibernateconstraintvalidatorcontext
https://github.com/dropwizard/dropwizard/commit/d5a512f7abf965275f2a6b913ac4fe778e424242
https://github.com/dropwizard/dropwizard/pull/3208
https://github.com/dropwizard/dropwizard/pull/3209
https://github.com/dropwizard/dropwizard/security/advisories/GHSA-3mcp-9wr4-cjqf
https://github.com/dropwizard/dropwizard/security/advisories/GHSA-8jpx-m2wh-2v34
https://github.com/dropwizard/dropwizard/security/policy#reporting-a-vulnerability

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.