Main Vulnerability Database Vulnerabilities #VU47626

Protection Mechanism Failure in Apache Solr - CVE-2020-13957

Published: October 13, 2020 / Updated: May 9, 2021

Vulnerability identifier: #VU47626

CSH Severity: High

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2020-13957

CWE-ID: CWE-693

Exploitation vector: Remote access

Exploit availability: Public exploit is available

Vulnerability details

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to insufficient implementation of security measures, configured in a ConfigSet that's uploaded via API without authentication/authorization. The checks in place to prevent such features can be circumvented by using a combination of UPLOAD/CREATE actions. A remote non-authenticated attacker can upload a specially crafted configuration and execute arbitrary code on the system.

Affected software

Apache Solr
watsonx.data

How to mitigate CVE-2020-13957

Install updates from vendor's website.

Apache Solr - update to 8.6.3
watsonx.data - update to 2.0.3

Links to Public Exploits and PoC-codes

External References

https://mail-archives.us.apache.org/mod_mbox/www-announce/202010.mbox/%3CCAECwjAWCVLoVaZy%3DTNRQ6Wk9KWVxdPRiGS8NT%2BPHMJCxbbsEVg%40mail.gmail.com%3E