Denial of service in VMware Tanzu Application Service for VMs and Isolation Segment



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-5420
CWE-ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		VMware Tanzu Application Service for VMs
Server applications / Other server solutions

Isolation Segment
Server applications / Other server solutions

Vendor VMware, Inc

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Input validation error

EUVDB-ID: #VU46658

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-5420

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote authenticated attacker with "cf push" access can push an app that returns specially crafted HTTP responses and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

VMware Tanzu Application Service for VMs: 2.7.0 - 2.10.2

Isolation Segment: before 2.10.3

CPE2.3 External links

http://tanzu.vmware.com/security/cve-2020-5420


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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