Vulnerability identifier: #VU19391

Vulnerability risk: High

CVSSv3.1: 9.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C]

CVE-ID: CVE-2019-0192

CWE-ID: CWE-502

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 execute arbitrary code on the target system.

The vulnerability exists due to insecure input validation when processing serialized data within the RMI server component. A remote non-authenticated attacker can configure the JMX server via an HTTP POST request to the Config API, make it point to a malicious RMI server and then 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

Apache Solr: 5.5.0 - 5.5.5, 6.6.0 - 6.6.5

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External links
http://mail-archives.us.apache.org/mod_mbox/www-announce/201903.mbox/%3CCAECwjAV1buZwg%2BMcV9EAQ19MeAWztPVJYD4zGK8kQdADFYij1w%40mail.gmail.com%3E
http://lists.apache.org/thread.html/42c5682f4acd1d03bd963e4f47ae448d7cff66c16b19142773818892@%3Cdev.lucene.apache.org%3E
http://lists.apache.org/thread.html/53e4744b14fb7f1810405f8ff5531ab0953a23dd09ce8071ce87e00d@%3Cdev.lucene.apache.org%3E
http://lists.apache.org/thread.html/b0ace855f569c6b7a0b03ba68566e53b1a1a519abd536bf38978ce4a@%3Cdev.lucene.apache.org%3E
http://lists.apache.org/thread.html/d0e608c681dfbb16b4da68d99d43fa0ddbd366bb3bcf5bc0d43c56d7@%3Cdev.lucene.apache.org%3E
http://lists.apache.org/thread.html/ec9c572fb803b26ba0318777977ee6d6a2fb3a2c50d9b4224e541d5d@%3Cdev.lucene.apache.org%3E
http://issues.apache.org/jira/browse/SOLR-13301

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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, a fully functional exploit for this vulnerability is available.