Input validation error in CF Deployment and Routing Release - CVE-2020-5420
Published: September 11, 2020
Vulnerability identifier: #VU46658
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-5420
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
CF Deployment
Routing Release
Isolation Segment
VMware Tanzu Application Service for VMs
Routing Release
Isolation Segment
VMware Tanzu Application Service for VMs
How to mitigate CVE-2020-5420
Install updates from vendor's website.
CF Deployment - update to 13.15.0
Routing Release - update to 0.206.0
Isolation Segment - addressed in versions 2.7.23, 2.8.17, 2.9.11, 2.10.3
VMware Tanzu Application Service for VMs - addressed in versions 2.7.23, 2.8.17, 2.9.11, 2.10.3
Routing Release - update to 0.206.0
Isolation Segment - addressed in versions 2.7.23, 2.8.17, 2.9.11, 2.10.3
VMware Tanzu Application Service for VMs - addressed in versions 2.7.23, 2.8.17, 2.9.11, 2.10.3