Permissions, Privileges, and Access Controls in Routing Release

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU35955

Risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-3789

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote authenticated user to manipulate data.

Cloud Foundry Routing Release, all versions prior to 0.188.0, contains a vulnerability that can hijack the traffic to route services hosted outside the platform. A user with space developer permissions can create a private domain that shadows the external domain of the route service, and map that route to an app. When the gorouter receives traffic destined for the external route service, this traffic will instead be directed to the internal app using the shadow route.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Routing Release: 0.62.0 - 0.187.0

CPE2.3

• cpe:2.3:a:cloud_foundry_foundation:routing_release:0.62.0:*:*:*:*:*:*:*
• cpe:2.3:a:cloud_foundry_foundation:routing_release:0.66.0:*:*:*:*:*:*:*
• cpe:2.3:a:cloud_foundry_foundation:routing_release:0.69.0:*:*:*:*:*:*:*

External links

https://www.cloudfoundry.org/blog/cve-2019-3789

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.