Vulnerability Monitor

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CVE-2020-3994


VMware vCenter Server (6.7 before 6.7u3, 6.6 before 6.5u3k) contains a session hijack vulnerability in the vCenter Server Appliance Management Interface update function due to a lack of certificate validation. A malicious actor with network positioning between vCenter Server and an update repository may be able to perform a session hijack when the vCenter Server Appliance Management Interface is used to download vCenter updates.


Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.4, indicating it can be exploited remotely over the network but requires specific conditions to be met without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), for affected systems. Impacting 2 products from vmware, from vmware organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2020, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.


Published

2020-10-20T17:15:12.967

Last Modified

2024-11-21T05:32:07.787

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.4 (HIGH)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:P/I:P/A:N

  • Access Vector: NETWORK
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: NONE
Exploitability Score

8.6

Impact Score

4.9

Weaknesses
  • Type: Primary
    CWE-295

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application vmware cloud_foundation < 3.9 Yes
Application vmware vcenter_server 6.5 Yes
Application vmware vcenter_server 6.5 Yes
Application vmware vcenter_server 6.5 Yes
Application vmware vcenter_server 6.5 Yes
Application vmware vcenter_server 6.5 Yes
Application vmware vcenter_server 6.5 Yes
Application vmware vcenter_server 6.5 Yes
Application vmware vcenter_server 6.5 Yes
Application vmware vcenter_server 6.5 Yes
Application vmware vcenter_server 6.5 Yes
Application vmware vcenter_server 6.5 Yes
Application vmware vcenter_server 6.5 Yes
Application vmware vcenter_server 6.5 Yes
Application vmware vcenter_server 6.5 Yes
Application vmware vcenter_server 6.5 Yes
Application vmware vcenter_server 6.5 Yes
Application vmware vcenter_server 6.5 Yes
Application vmware vcenter_server 6.5 Yes
Application vmware vcenter_server 6.5 Yes
Application vmware vcenter_server 6.5 Yes
Application vmware vcenter_server 6.7 Yes
Application vmware vcenter_server 6.7 Yes
Application vmware vcenter_server 6.7 Yes
Application vmware vcenter_server 6.7 Yes
Application vmware vcenter_server 6.7 Yes
Application vmware vcenter_server 6.7 Yes
Application vmware vcenter_server 6.7 Yes
Application vmware vcenter_server 6.7 Yes
Application vmware vcenter_server 6.7 Yes

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For vmware's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.