CVE-2018-11802 Incorrect Authorization in Apache Solr

What is CVE-2018-11802?

CVE-2018-11802 is a medium-severity missing authorization vulnerability in Apache Solr, published on 1 Apr 2020. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

In Apache Solr, the cluster can be partitioned into multiple collections and only a subset of nodes actually host any given collection. However, if a node receives a request for a collection it does not host, it proxies the request to a relevant node and serves the request. Solr bypasses all authorization settings for such requests. This affects all Solr versions prior to 7.7 that use the default authorization mechanism of Solr (RuleBasedAuthorizationPlugin).

Weakness: CWE-863

Which versions are affected by CVE-2018-11802?

8 open source packages ship an affected version, including org.apache.solr:solr-core and org.apache.solr:solr-parent. It affects 1 product.

Products include Apache Solr.

How do I fix CVE-2018-11802?

Upgrade org.apache.solr:solr-core to a fixed version for your release line: 6.6.6 or 7.7.0.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2018-11802 being exploited?

There is no known exploitation of CVE-2018-11802 in the wild and no public exploit code.

Other vulnerabilities in Apache Solr

• CVE-2019-17558 Apache Solr VelocityResponseWriter Plug-In Remote Code Execution Exploited High 7.5
• CVE-2019-0193 Apache Solr DataImportHandler Code Injection Exploited High 7.2
• CVE-2024-45216 Apache Solr: Authentication bypass possible using a fake URL Path ending Critical 9.8
• CVE-2021-44548 Apache Solr information disclosure vulnerability through DataImportHandler Critical 9.8
• CVE-2021-27905 SSRF vulnerability with the Replication handler Critical 9.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-j346-h5wc-rw2m, UBUNTU-CVE-2018-11802.