JavaEL Injection Vulnerability in Sonatype Nexus Repository
CVE-2020-10199

8.8HIGH

Key Information:

Vendor: Sonatype
Status: Nexus
Vendor: CVE Published:; 1 April 2020

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 94%🦅 CISA Reported

What is CVE-2020-10199?

An injection flaw in Sonatype Nexus Repository versions prior to 3.21.2 allows attackers to exploit Java Expression Language (JavaEL) to execute arbitrary code. This vulnerability can lead to unauthorized access and manipulation of the system. It is crucial for organizations using Nexus Repository to upgrade to the latest version to mitigate potential risks.

CISA has reported CVE-2020-10199

CISA provides regional cyber and physical services to support security and resilience across the United States. CISA monitor the most dangerious vulnerabilities and have identifed CVE-2020-10199 as being exploited but is not known by the CISA to be used in ransomware campaigns. This is subject to change at pace

The CISA's recommendation is: Apply updates per vendor instructions.

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.