Vulnerability identifier: #VU45762

Vulnerability risk: Medium

CVSSv3.1: 4 [CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-13941

CWE-ID: CWE-20

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 user to bypass implemented security restrictions.

The vulnerability exists due to insufficient validation of user-supplied input in the Replication handler. A remote authenticated user can bypass security restrictions and read/write data to the filesystem.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Apache Solr: 8.5.0 - 8.5.2, 8.4.0 - 8.4.1, 8.3.0 - 8.3.1, 8.2.0, 8.1.0 - 8.1.1, 8.0.0, 7.7.0 - 7.7.3, 7.6.0, 7.5.0, 7.4.0, 7.2 - 7.2.1, 7.1 - 7.1.0, 7.3.0 - 7.3.1, 7.0.0 - 7.0.1, 6.6 - 6.6.6, 6.5 - 6.5.1, 6.4 - 6.4.2, 6.3 - 6.3.0

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External links
http://lists.apache.org/thread.html/rf54e7912b7d2b72c63ec54a7afa4adcbf16268dcc63253767dd67d60%40%3Cgeneral.lucene.apache.org%3E

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Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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