Open redirect in Cloud Foundry UAA

1) Open redirect

EUVDB-ID: #VU37015

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-11041

CWE-ID: CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

Cloud Foundry UAA, versions later than 4.6.0 and prior to 4.19.0 except 4.10.1 and 4.7.5 and uaa-release versions later than v48 and prior to v60 except v55.1 and v52.9, does not validate redirect URL values on a form parameter used for internal UAA redirects on the login page, allowing open redirects. A remote attacker can craft a malicious link that, when clicked, will redirect users to arbitrary websites after a successful login attempt.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Cloud Foundry UAA: 4.0.0 - 4.18.0

CPE2.3

• cpe:2.3:a:cloud_foundry_foundation:cloud_foundry_uaa:4.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:cloud_foundry_foundation:cloud_foundry_uaa:4.1.0:*:*:*:*:*:*:*
• cpe:2.3:a:cloud_foundry_foundation:cloud_foundry_uaa:4.2.0:*:*:*:*:*:*:*

External links

https://www.cloudfoundry.org/blog/cve-2018-11041/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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