Arbitrary file upload in Hitachi Vantara Pentaho
CVE-2021-34685
UploadService in Hitachi Vantara Pentaho Business Analytics through 9.1 does not properly verify uploaded user files, which allows an authenticated user to upload various files of different file types. Specifically, a .jsp file is not allowed, but a .jsp. file is allowed (and leads to remote code execution).
Vulnerability class: Unrestricted File Upload
Published · last modified .
CVSS v3 metric
CVSS v3 base score 2.7 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.023 (83.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 83.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.hitachi.com/hirt/security/index.html (Vendor Advisory)
- packetstormsecurity.com/files/164775/Pentaho-Business-Analytics-Pentaho-Busines… (Exploit, VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-34685?
- CVE-2021-34685 is a low-severity vulnerability in Hitachi Vantara Pentaho, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 2.7/10. Published 2021-11-08.
- How severe is CVE-2021-34685?
- Low severity. CVSS v3 base score is 2.7 out of 10.
- Is CVE-2021-34685 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.