What is the CVSS score of CVE-2021-33885?

CVE-2021-33885 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 5.6%.

Is there a public PoC exploit available for CVE-2021-33885?

Yes, a public proof-of-concept exploit is available for CVE-2021-33885. Prioritise patching immediately. EPSS: 5.6%.

Jwt Attack CVE-2021-33885

CRITICAL

Improper Verification of Cryptographic Signature (CWE-347)

2021-08-25 cve@mitre.org

Information Disclosure Jwt Attack Spacecom2

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Aug 25, 2021 - 12:15 nvd

CRITICAL 9.8

DescriptionNVD

An Insufficient Verification of Data Authenticity vulnerability in B. Braun SpaceCom2 prior to 012U000062 allows a remote unauthenticated attacker to send the device malicious data that will be used in place of the correct data. This results in full system command access and execution because of the lack of cryptographic signatures on critical data sets.

AnalysisAI

An Insufficient Verification of Data Authenticity vulnerability in B. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-347. An Insufficient Verification of Data Authenticity vulnerability in B. Braun SpaceCom2 prior to 012U000062 allows a remote unauthenticated attacker to send the device malicious data that will be used in place of the correct data. This results in full system command access and execution because of the lack of cryptographic signatures on critical data sets. Affected products include: Bbraun Spacecom2. Version information: prior to 012.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.