CVE-2020-9491
HIGH severity · CVSS 7.5 · CWE-327
7.5CVSS HIGH
Summary
In Apache NiFi 1.2.0 to 1.11.4, the NiFi UI and API were protected by mandating TLS v1.2, as well as listening connections established by processors like ListenHTTP, HandleHttpRequest, etc. However intracluster communication such as cluster request replication, Site-to-Site, and load balanced queues continued to support TLS v1.0 or v1.1.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactNone
Availability impactNone
Exploit probability (EPSS)3%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Additional information
- NVD record
- https://nifi.apache.org/security#CVE-2020-9491Advisory
- https://lists.apache.org/thread.html/r2d9c21f9ec35d66f2bb42f8abe876dabd786166b6284e9a33582c718%40%3Ccommits.nifi.apache.org%3E
- https://lists.apache.org/thread.html/re48582efe2ac973f8cff55c8b346825cb491c71935e15ab2d61ef3bf%40%3Ccommits.nifi.apache.org%3E