QID 150445

Date Published: 2022-01-13

QID 150445: Apache Solr SSRF Vulnerability (CVE-2021-27905)

Apache Solr is an open-source enterprise search platform which is on Apache Lucene.

The installed version of Apache Solr allow unauthenticated remote attackers to perform SSRF attacks. The vulnerability exists due to insufficient validation of user-supplied input passed via the "masterUrl" or "leaderUrl" parameters to "/replication" URL.

Affected versions:
before version 8.8.2

Successful exploitation of this vulnerability may allow a remote attacker gain access to sensitive data, located in the local network or send malicious requests to other servers from the vulnerable system.

CVSS V3 rated as Critical - 9.8 severity.

CVSS V2 rated as High - 7.5 severity.

Solution

Upgrade to Solr 8.8.2 or later.

Vendor References

CVE-2021-27905 - solr.apache.org/security.html#cve-2021-27905-ssrf-vulnerability-with-the-replication-handler

CVEs related to QID 150445

CVE-2021-27905 |

Software Advisories

Advisory ID	Software	Component	Link
Apache Solr			solr.apache.org/security.html#cve-2021-27905-ssrf-vulnerability-with-the-replication-handler
SOLR-15217			issues.apache.org/jira/browse/SOLR-15217

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