What is the CVSS score of CVE-2023-3243?

CVE-2023-3243 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: 0.6%.

Alerton Bcm Web Firmware CVE-2023-3243

Q: Which versions of Alerton Bcm Web Firmware are affected by CVE-2023-3243?

** UNSUPPORTED WHEN ASSIGNED ** [An attacker can capture an authenticating hash and utilize it to create new sessions.

CRITICAL

Authentication Bypass by Spoofing (CWE-290)

2023-06-28 psirt@honeywell.com

Authentication Bypass Alerton Bcm Web Firmware

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

Jun 28, 2023 - 21:15 nvd

CRITICAL 9.8

DescriptionNVD

UNSUPPORTED WHEN ASSIGNED [An attacker can capture an authenticating hash and utilize it to create new sessions. The hash is also a poorly salted MD5 hash, which could result in a successful brute force password attack. Impacted product is BCM-WEB version 3.3.X. Recommended fix: Upgrade to a supported product such as Alerton ACM.] Out of an abundance of caution, this CVE ID is being assigned to better serve our customers and ensure all who are still running this product understand that the product is end of life and should be removed or upgraded.

AnalysisAI

UNSUPPORTED WHEN ASSIGNED [An attacker can capture an authenticating hash and utilize it to create new sessions. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-290. UNSUPPORTED WHEN ASSIGNED [An attacker can capture an authenticating hash and utilize it to create new sessions. The hash is also a poorly salted MD5 hash, which could result in a successful brute force password attack. Impacted product is BCM-WEB version 3.3.X. Recommended fix: Upgrade to a supported product such as Alerton ACM.] Out of an abundance of caution, this CVE ID is being assigned to better serve our customers and ensure all who are still running this product understand that the product is end of life and should be removed or upgraded. Affected products include: Honeywell Alerton Bcm-Web Firmware. Version information: version 3.3..

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.