Vulnerability CVE-2021-34685
Published: 2021-11-08

Description:
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).

See advisories in our WLB2 database:
Topic
Author
Date
Med.
Pentaho Business Analytics / Pentaho Business Server 9.1 Filename Bypass
Altion Malka
07.11.2021

Type:

CWE-434

 (Unrestricted Upload of File with Dangerous Type)

CVSS2 => (AV:N/AC:L/Au:S/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.5/10
6.4/10
8/10
Exploit range
Attack complexity
Authentication
Remote
Low
Single time
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Hitachi -> Vantara pentaho 

 References:
https://www.hitachi.com/hirt/security/index.html
http://packetstormsecurity.com/files/164775/Pentaho-Business-Analytics-Pentaho-Business-Server-9.1-Filename-Bypass.html
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