Description
The XML content type entity deserializer in Apache Olingo versions 4.0.0 to 4.6.0 is not configured to deny the resolution of external entities. Request with content type "application/xml", which trigger the deserialization of entities, can be used to trigger XXE attacks.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Apache | Olingo | 4.0.0 to 4.6.0 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- Apache Olingo OData 4.0 - XML External Entity Injection EDB-47770 · webapps · Dec 11, 2019
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | org.apache.olingo:odata-client-core | >= 4.0.0, < 4.7.0 | 4.7.0 | GHSA-mgh8-hcwj-h57v |
| Maven | org.apache.olingo:odata-server-core | >= 4.0.0, < 4.7.0 | 4.7.0 | GHSA-mgh8-hcwj-h57v |
References
- [olingo-user] 20191204 [SECURITY] CVE-2019-17554: XML External Entity resolution attack mailing-list
- 20191210 CVE-2019-17554 - Apache Olingo OData 4.0 - XML External Entity Resolution (XXE) mailing-list
- http://packetstormsecurity.com/files/155619/Apache-Olingo-OData-4.6.x-XML-Injection.html
- [announce] 20200131 Apache Software Foundation Security Report: 2019 mailing-list