Ubuntu update for lucene-solr

1) Exposed dangerous method or function

EUVDB-ID: #VU20062

Risk: Medium

CVSSv4.0: 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/E:A/U:Green]

CVE-ID: CVE-2019-0193

CWE-ID: CWE-749 - Exposed Dangerous Method or Function

Exploit availability: Yes

Description

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.

Mitigation

Update the affected package lucene-solr to the latest version.

Vulnerable software versions

Ubuntu: 14.04 - 18.04

libsolr-java (Ubuntu package): before Ubuntu Pro

liblucene3-java (Ubuntu package): before Ubuntu Pro

liblucene3-contrib-java (Ubuntu package): before liblucene3-java

CPE2.3

• cpe:2.3:o:canonical:ubuntu:14.04:*:*:*:*:*:*:*
• cpe:2.3:o:canonical:ubuntu:16.04:*:*:*:*:*:*:*
• cpe:2.3:o:canonical:ubuntu:18.04:*:*:*:*:*:*:*
• cpe:2.3:a:canonical:libsolr-java_ubuntu_package:*:*:*:*:*:ubuntu:*:*
• cpe:2.3:a:canonical:liblucene3-java_ubuntu_package:*:*:*:*:*:ubuntu:*:*
• cpe:2.3:a:canonical:liblucene3-contrib-java_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

https://ubuntu.com/security/notices/USN-7283-1

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?

Yes. This vulnerability is being exploited in the wild.