XXE in Apache Nifi
CVE-2017-12623
An authorized user could upload a template which contained malicious code and accessed sensitive files via an XML External Entity (XXE) attack. The fix to properly handle XML External Entities was applied on the Apache NiFi 1.4.0 release. Users running a prior 1.x release should upgrade to the appropriate release.
Vulnerability class: XXE (XML External Entity)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.019 (79.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 79.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: 0.000
Affected products
- Apache Nifi — versions 1.0.0, 1.0.1, 1.1.0
- Apache Software Foundation Nifi — versions 1.0.0 to 1.3.0
Weakness classification (CWE)
References
- nifi.apache.org/security.html (Vendor Advisory)
Frequently asked questions
- What is CVE-2017-12623?
- CVE-2017-12623 is a medium-severity vulnerability in Apache Nifi, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 6.5/10. Published 2017-10-10.
- How severe is CVE-2017-12623?
- Medium severity. CVSS v3 base score is 6.5 out of 10.