CVE-2020-13942

Description

It is possible to inject malicious OGNL or MVEL scripts into the /context.json public endpoint. This was partially fixed in 1.5.1 but a new attack vector was found. In Apache Unomi version 1.5.2 scripts are now completely filtered from the input. It is highly recommended to upgrade to the latest available version of the 1.5.x release to fix this problem.

References

https://lists.apache.org/thread.html/rcb6d2eafcf15def433aaddfa06738e5faa5060cef2647769e178999a%40%3Cusers.unomi.apache.org%3E

https://lists.apache.org/thread.html/rcb6d2eafcf15def433aaddfa06738e5faa5060cef2647769e178999a%40%3Cdev.unomi.apache.org%3E

https://lists.apache.org/thread.html/r79672c25e0ef9bb4b9148376281200a8e61c6d5ef5bb705e9a363460%40%3Ccommits.unomi.apache.org%3E

https://lists.apache.org/thread.html/r4a8fa91836687eaca42b5420a778ca8c8fd3a3740e4cf4401acc9118%40%3Cusers.unomi.apache.org%3E

https://lists.apache.org/thread.html/r4a8fa91836687eaca42b5420a778ca8c8fd3a3740e4cf4401acc9118%40%3Cdev.unomi.apache.org%3E

https://lists.apache.org/thread.html/r08a4057ff7196b8880117edaa4b6207cbd36ed692d8dd1f5a56b4d0f%40%3Cannounce.apache.org%3E

https://advisory.checkmarx.net/advisory/CX-2020-4284

http://www.openwall.com/lists/oss-security/2020/11/24/5

http://unomi.apache.org./security/cve-2020-13942.txt

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3