Protection Mechanism Failure in Apache Solr - CVE-2020-13957
Published: October 13, 2020 / Updated: May 9, 2021
Vulnerability identifier: #VU47626
CSH Severity: High
CVSS v4.0: 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/E:P/U:Amber
CVE-ID: CVE-2020-13957
CWE-ID: CWE-693
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vendor: Apache Foundation
Affected software:
Apache Solr
Apache Solr
Detailed vulnerability description
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.
How to mitigate CVE-2020-13957
Install updates from vendor's website.