What is the CVSS score of CVE-2021-31599?

CVE-2021-31599 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 2.3%.

Is there a public PoC exploit available for CVE-2021-31599?

Yes, a public proof-of-concept exploit is available for CVE-2021-31599. Prioritise patching immediately. EPSS: 2.3%.

Vantara Pentaho CVE-2021-31599

HIGH

Unrestricted Upload of File with Dangerous Type (CWE-434)

2021-11-08 cve@mitre.org

RCE File Upload Vantara Pentaho Vantara Pentaho Business Intelligence Server

8.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Nov 08, 2021 - 04:15 nvd

HIGH 8.8

DescriptionNVD

An issue was discovered in Hitachi Vantara Pentaho through 9.1 and Pentaho Business Intelligence Server through 7.x. A reports (.prpt) file allows the inclusion of BeanShell scripts to ease the production of complex reports. An authenticated user can run arbitrary code.

AnalysisAI

An issue was discovered in Hitachi Vantara Pentaho through 9.1 and Pentaho Business Intelligence Server through 7.x. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Unrestricted File Upload (CWE-434), which allows attackers to upload malicious files that can be executed on the server. An issue was discovered in Hitachi Vantara Pentaho through 9.1 and Pentaho Business Intelligence Server through 7.x. A reports (.prpt) file allows the inclusion of BeanShell scripts to ease the production of complex reports. An authenticated user can run arbitrary code. Affected products include: Hitachi Vantara Pentaho, Hitachi Vantara Pentaho Business Intelligence Server. Version information: through 9.1.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate file types server-side, store uploads outside webroot, use random filenames, scan for malware.