OS Command Injection in Sonatype Nexus Repository Manager

1) OS Command Injection

EUVDB-ID: #VU20880

Risk: Medium

CVSSv3.1: 6.3 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-5475

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of user-supplied input in the "CommandLineExecutor.java". A remote authenticated administrator can execute arbitrary OS commands on the target system, such as the Yum Configuration Capability.

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

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Nexus Repository Manager: 1.6.0 - 2.14.13

External links

http://support.sonatype.com/hc/en-us/articles/360033490774-CVE-2019-5475-Nexus-Repository-Manager-2...
http://github.com/sonatype/nexus-public/blob/release-2.14.9-01/plugins/yum/nexus-yum-repository-plu...

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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