What is the CVSS score of CVE-2021-27618?

CVE-2021-27618 has a CVSS 3.1 base score of 4.9 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.8%.

Netweaver Process Integration CVE-2021-27618

MEDIUM

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

2021-05-11 cna@sap.com

Denial Of Service SAP File Upload Netweaver Process Integration

4.9

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

4.9 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

CVE Published

May 11, 2021 - 15:15 nvd

MEDIUM 4.9

DescriptionNVD

The Integration Builder Framework of SAP Process Integration versions - 7.10, 7.11, 7.20, 7.30, 7.31, 7.40, 7.50, does not check the file type extension of the file uploaded from local source. An attacker could craft a malicious file and upload it to the application, which could lead to denial of service and impact the availability of the application.

AnalysisAI

The Integration Builder Framework of SAP Process Integration versions - 7.10, 7.11, 7.20, 7.30, 7.31, 7.40, 7.50, does not check the file type extension of the file uploaded from local source. Rated medium severity (CVSS 4.9), this vulnerability is remotely exploitable, low attack complexity. 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. The Integration Builder Framework of SAP Process Integration versions - 7.10, 7.11, 7.20, 7.30, 7.31, 7.40, 7.50, does not check the file type extension of the file uploaded from local source. An attacker could craft a malicious file and upload it to the application, which could lead to denial of service and impact the availability of the application. Affected products include: Sap Netweaver Process Integration.

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.