Vulnerability in Apache Nifi
CVE-2022-26850
When creating or updating credentials for single-user access, Apache NiFi wrote a copy of the Login Identity Providers configuration to the operating system temporary directory. On most platforms, the operating system temporary directory has global read permissions. NiFi immediately moved the temporary file to the final configuration directory, which significantly limited the window of opportunity for access. NiFi 1.16.0 includes updates to replace the Login Identity Providers configuration without writing a file to the operating system temporary directory.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.015 (73.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 73.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000
Affected products
- Apache Nifi
- Apache Software Foundation Nifi — versions NiFi 1.14.0 to 1.15.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- nifi.apache.org/security.html (Vendor Advisory)
- www.openwall.com/lists/oss-security/2022/04/06/2 (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-26850?
- CVE-2022-26850 is a medium-severity vulnerability in Apache Nifi, classified under Exposure of Resource to Wrong Sphere. CVSS score: 4.3/10. Published 2022-04-06.
- How severe is CVE-2022-26850?
- Medium severity. CVSS v3 base score is 4.3 out of 10.
- Is CVE-2022-26850 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.