#VU22878 Improper Authentication in Apache Solr - CVE-2019-12409

Vulnerability identifier: #VU22878

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-2019-12409

CWE-ID: CWE-287

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Apache Solr
Client/Desktop applications / Other client software

Vendor: Apache Foundation

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to insecure default configuration in solr.in.sh of Apache Solr. The "ENABLE_REMOTE_JMX_OPTS" is set to "true" by default, which allows remote JMX client applications. A remote non-authenticated attacker can bypass authentication process and gain execute arbitrary code on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Apache Solr: 8.1.1, 8.2.0

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External links
https://lists.apache.org/thread.html/6640c7e370fce2b74e466a605a46244ccc40666ad9e3064a4e04a85d@%3Csolr-user.lucene.apache.org%3E
https://www.tenable.com/blog/cve-2019-12409-default-configuration-in-apache-solr-could-lead-to-remote-code-execution
https://github.com/jas502n/CVE-2019-12409/
https://issues.apache.org/jira/browse/SOLR-13647

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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.