CVE-2018-8026 XML external entity expansion in org.apache.solr:solr-core
Attackers can exploit XML external entity vulnerabilities in Solr config files to read arbitrary local files or internal network resources.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-8026?
CVE-2018-8026 is a medium-severity vulnerability in Netapp Snapcenter, published on 5 Jul 2018. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
This vulnerability in Apache Solr 6.0.0 to 6.6.4 and 7.0.0 to 7.3.1 relates to an XML external entity expansion (XXE) in Solr config files (currency.xml, enumsConfig.xml referred from schema.xml, TIKA parsecontext config file). In addition, Xinclude functionality provided in these config files is also affected in a similar way. The vulnerability can be used as XXE using file/ftp/http protocols in order to read arbitrary local files from the Solr server or the internal network. The manipulated files can be uploaded as configsets using Solr's API, allowing to exploit that vulnerability.
Weakness: CWE-611
Which versions are affected by CVE-2018-8026?
4 open source packages ship an affected version, including org.apache.solr:solr-core. It affects 3 products.
| Package | Affected | Fixed in |
|---|---|---|
org.apache.solr:solr-core Maven | From 6.0.0 | 6.6.5 |
org.apache.solr:solr-core Maven | From 6.0.0 | 6.6.5 |
org.apache.solr:solr-core Maven | From 7.0.0 | 7.4.0 |
org.apache.solr:solr-core Maven | From 7.0.0 | 7.4.0 |
Products include Apache Solr, Netapp Snapcenter, Netapp Storage Automation Store.
How do I fix CVE-2018-8026?
Upgrade org.apache.solr:solr-core to a fixed version for your release line: 6.6.5 or 7.4.0.
Is CVE-2018-8026 being exploited?
There is no known exploitation of CVE-2018-8026 in the wild and no public exploit code.
Other vulnerabilities in Netapp Snapcenter
- CVE-2019-17558 Apache Solr VelocityResponseWriter Plug-In Remote Code Execution
- CVE-2019-0193 Apache Solr DataImportHandler Code Injection
- CVE-2024-45216 Apache Solr: Authentication bypass possible using a fake URL Path ending
- CVE-2021-44548 Apache Solr information disclosure vulnerability through DataImportHandler
- CVE-2021-27905 SSRF vulnerability with the Replication handler
Sources
Also known as GHSA-7px3-6f6g-hxcj.