What is the CVSS score of CVE-2019-18339?

CVE-2019-18339 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: 2.7%.

Sinvr 3 Central Control Server CVE-2019-18339

CRITICAL

Missing Authentication for Critical Function (CWE-306)

2019-12-12 productcert@siemens.com

Authentication Bypass Sinvr 3 Central Control Server Sinvr 3 Video Server

9.8

CVSS 3.1 · Vendor: siemens

Severity by source

Vendor (siemens) PRIMARY

9.8 CRITICAL

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

Primary rating from Vendor (siemens) · only source for this CVE.

CVSS VectorVendor: siemens

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

Dec 12, 2019 - 19:15 cve.org

CRITICAL 9.8

DescriptionCVE.org

A vulnerability has been identified in SiNVR/SiVMS Video Server (All versions < V5.0.0). The HTTP service (default port 5401/tcp) of the SiVMS/SiNVR Video Server contains an authentication bypass vulnerability, even when properly configured with enforced authentication.

A remote attacker with network access to the Video Server could exploit this vulnerability to read the SiVMS/SiNVR users database, including the passwords of all users in obfuscated cleartext.

AnalysisAI

A vulnerability has been identified in SiNVR/SiVMS Video Server (All versions < V5.0.0). 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 as Missing Authentication for Critical Function (CWE-306), which allows attackers to access critical functionality without authentication. A vulnerability has been identified in SiNVR/SiVMS Video Server (All versions < V5.0.0). The HTTP service (default port 5401/tcp) of the SiVMS/SiNVR Video Server contains an authentication bypass vulnerability, even when properly configured with enforced authentication. A remote attacker with network access to the Video Server could exploit this vulnerability to read the SiVMS/SiNVR users database, including the passwords of all users in obfuscated cleartext. Affected products include: Siemens Sinvr 3 Central Control Server, Siemens Sinvr 3 Video Server.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Require authentication for all sensitive operations, implement defense in depth.