Medium, CVSS 5.9MavenPublished
XML External Entity (XXE) vulnerability in apoc.import.graphml
CVE-2023-23926 · GHSA-6wxg-wh7f-rqpr
- Affected
- Maven org.neo4j.procedure:apoc-core >= 5.0.0, < 5.5.0; < 4.4.0.14
- Fixed in
- 4.4.0.145.5.0· Vendor fix available
- Issue
- Impact A XML External Entity (XXE) vulnerability found in the apoc.import.graphml procedure of APOC core plugin in Neo4j graph database. XML External Entity (XXE) injection occurs when the XML parser allows external entities to be resolved. The XML parser used by the apoc.import.graphml procedure was not configured in a secure way and therefore allowed this. External entities can be used to read local files, send HTTP requests, and perform denial-of-service attacks on the application. Abusing the XXE vulnerability enabled assessors to read local files remotely. Although with the level of privileges assessors had this was limited to one-line files. With the ability to write to the database, any file could have been read. Additionally, assessors noted, with local testing, the server could be crashed by passing in improperly formatted XML. Patches The users should aim to use the latest released version compatible with their Neo4j version. The minimum versions containing patch for this…
Recommended action: Upgrade to 5.5.0 or 4.4.0.14 by release line, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.