Actively exploited · Published Apr 1, 2020 · Assigned by mitre

CVE-2020-10199

High 8.8 Exploited

In plain English

A high-severity expression language injection in Nexus Repository from Sonatype. Attackers are actively exploiting it in the wild (listed by CISA on November 3, 2021). The chance it is exploited in the next 30 days is estimated at 99.1% (higher than 99.9% of all known vulnerabilities). Ready-made attack tooling exists: Metasploit, Nuclei, public proof-of-concept code. Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)99.1%top 0.1% of all CVEs

Exploited in the wildYesCISA KEV since Nov 3, 2021

Attack tooling3Metasploit, Nuclei, Public PoC

CISA guidance

Apply updates per vendor instructions.

Federal agencies must remediate by May 3, 2022.

Official description

Sonatype Nexus Repository before 3.21.2 allows JavaEL Injection (issue 1 of 2).

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Maven	org.sonatype.nexus:nexus-extdirect	3.21.2	GHSA-g2f6-v5qh-h2mq

Affected products (as reported)

Vendor	Product	Versions
n/a	n/a	n/a

Weakness: CWE-917 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

https://support.sonatype.com/hc/en-us/articles/360044882533 x_refsource_CONFIRM
http://packetstormsecurity.com/files/157261/Nexus-Repository-Manager-3.21.1-01-Remote-Code-Execution.html x_refsource_MISC
http://packetstormsecurity.com/files/160835/Sonatype-Nexus-3.21.1-Remote-Code-Execution.html x_refsource_MISC
https://cwe.mitre.org/data/definitions/917.html x_refsource_MISC
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-10199 government-resource