Vulnerability Details : CVE-2020-3956

VMware Cloud Director 10.0.x before 10.0.0.2, 9.7.0.x before 9.7.0.5, 9.5.0.x before 9.5.0.6, and 9.1.0.x before 9.1.0.4 do not properly handle input leading to a code injection vulnerability. An authenticated actor may be able to send malicious traffic to VMware Cloud Director which may lead to arbitrary remote code execution. This vulnerability can be exploited through the HTML5- and Flex-based UIs, the API Explorer interface and API access.

Vulnerability category: Execute code

Published 2020-05-20 14:15:12

Updated 2021-12-13 19:07:03

Source VMware

View at NVD, CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2020-3956

Probability of exploitation activity in the next 30 days: 88.81%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 98 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2020-3956

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Source
6.5	MEDIUM	AV:N/AC:L/Au:S/C:P/I:P/A:P	8.0	6.4	[email protected]
Access Vector: Network Access Complexity: Low Authentication: Single Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
8.8	HIGH	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	2.8	5.9	[email protected]
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2020-3956

CWE-917 Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')

The product constructs all or part of an expression language (EL) statement in a framework such as a Java Server Page (JSP) using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended EL statement before it is executed.

Assigned by: [email protected] (Primary)

References for CVE-2020-3956

https://citadelo.com/en/blog/full-infrastructure-takeover-of-vmware-cloud-director-CVE-2020-3956/

Exploit;Third Party Advisory
https://www.vmware.com/security/advisories/VMSA-2020-0010.html

Vendor Advisory
http://packetstormsecurity.com/files/157909/vCloud-Director-9.7.0.15498291-Remote-Code-Execution.html

Exploit;Third Party Advisory;VDB Entry
https://github.com/aaronsvk/CVE-2020-3956

Exploit;Third Party Advisory

Products affected by CVE-2020-3956

Vmware » Vcloud Director
Versions from including (>=) 9.1.0.0 and before (<) 9.1.0.4
cpe:2.3:a:vmware:vcloud_director:*:*:*:*:*:*:*:*
Matching versions
When used together with: Linux » Linux Kernel » Version: N/A
Vmware » Vcloud Director
Versions from including (>=) 10.0.0.0 and before (<) 10.0.0.2
cpe:2.3:a:vmware:vcloud_director:*:*:*:*:*:*:*:*
Matching versions
When used together with: Linux » Linux Kernel » Version: N/A
When used together with: Vmware » Photon Os » Version: N/A
Vmware » Vcloud Director
Versions from including (>=) 9.7.0.0 and before (<) 9.7.0.5
cpe:2.3:a:vmware:vcloud_director:*:*:*:*:*:*:*:*
Matching versions
When used together with: Linux » Linux Kernel » Version: N/A
When used together with: Vmware » Photon Os » Version: N/A
Vmware » Vcloud Director
Versions from including (>=) 9.5.0.0 and before (<) 9.5.0.6
cpe:2.3:a:vmware:vcloud_director:*:*:*:*:*:*:*:*
Matching versions
When used together with: Linux » Linux Kernel » Version: N/A
When used together with: Vmware » Photon Os » Version: N/A