← back
CVE-2020-13942observed exploitationCWE-20

Remote Code Execution in Apache Unomi

72Vexday Risk Score

Patch now. It exploitation observed by VulnCheck and has a working public exploit.

ssvc Actepss 68%
from disclosure to weapon0 days
Published on NVDNov 24
1st PoCNov 20
VulnCheck+139d
exploitation probability
68%top 1% of all CVEs
observed exploitation
yesVulnCheck
6 public exploit(s)
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.
Affected products
Apache Software Foundation · Apache Unomi
public PoCs found — 6
vulncheckvulncheck.com/xdb/05247f160481unverifiedvulncheckvulncheck.com/xdb/465a48e5ddd5unverifiedvulncheckvulncheck.com/xdb/ff091b790f50unverifiedvulncheckvulncheck.com/xdb/1ac7e5a40dd2unverifiedvulncheckvulncheck.com/xdb/66d89e00d424unverifiedvulncheckvulncheck.com/xdb/2aaece82354eunverified
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
https://advisory.checkmarx.net/advisory/CX-2020-4284https://lists.apache.org/thread.html/r08a4057ff7196b8880117edaa4b6207cbd36ed692d8dd1f5a56b4d0f%40%3Cannounce.apache.org%3Ehttps://lists.apache.org/thread.html/r4a8fa91836687eaca42b5420a778ca8c8fd3a3740e4cf4401acc9118%40%3Cdev.unomi.apache.org%3Ehttps://lists.apache.org/thread.html/r4a8fa91836687eaca42b5420a778ca8c8fd3a3740e4cf4401acc9118%40%3Cusers.unomi.apache.org%3Ehttps://lists.apache.org/thread.html/r79672c25e0ef9bb4b9148376281200a8e61c6d5ef5bb705e9a363460%40%3Ccommits.unomi.apache.org%3Ehttps://lists.apache.org/thread.html/rcb6d2eafcf15def433aaddfa06738e5faa5060cef2647769e178999a%40%3Cdev.unomi.apache.org%3Ehttps://lists.apache.org/thread.html/rcb6d2eafcf15def433aaddfa06738e5faa5060cef2647769e178999a%40%3Cusers.unomi.apache.org%3Ehttp://unomi.apache.org./security/cve-2020-13942.txthttp://www.openwall.com/lists/oss-security/2020/11/24/5