Main Vulnerability Database Vulnerabilities #VU20062

Exposed dangerous method or function in Apache Solr - CVE-2019-0193

Published: August 13, 2019 / Updated: February 20, 2022

Vulnerability identifier: #VU20062

CSH Severity: Medium

CVSS v4: 9.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2019-0193

CWE-ID: CWE-749

Exploitation vector: Remote access

Exploit availability: The vulnerability is being exploited in the wild

Vulnerability details

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to DataImportHandler module in Apache Solr has a feature in which the whole DIH configuration can come from a request's "dataConfig" parameter. The debug mode of the DIH admin screen uses this to allow convenient debugging / development of a DIH config. A remote attacker can send a specially crafted reuqest to the affected application and execute arbitrary code on the target system.

Affected software

Apache Solr
Ubuntu
liblucene3-contrib-java (Ubuntu package)
liblucene3-java (Ubuntu package)
libsolr-java (Ubuntu package)

How to mitigate CVE-2019-0193

Install updates from vendor's website.

Apache Solr - update to 8.2.0
liblucene3-contrib-java (Ubuntu package) - addressed in versions Ubuntu Pro, liblucene3-java
liblucene3-java (Ubuntu package) - update to Ubuntu Pro
libsolr-java (Ubuntu package) - update to Ubuntu Pro

Links to Public Exploits and PoC-codes

Exploit #2051 - solr_exploit (Apache Solr远程代码执行漏洞(CVE-2019-0193) Exploit) (March 18, 2020)

External References

https://issues.apache.org/jira/browse/SOLR-13669