Vulnerability identifier: #VU46658

Vulnerability 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

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Routing Release
Server applications / Virtualization software
CF Deployment
Server applications / Frameworks for developing and running applications

Vendor: Cloud Foundry Foundation

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

Routing Release: 0.62.0 - 0.205.0

CF Deployment: 0.0.0 - 13.14.0

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External links
http://www.cloudfoundry.org/blog/cve-2020-5420

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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.