Information disclosure in Cloud Foundry UAA and CF Deployment



Published: 2019-12-04
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-11293
CWE-ID CWE-255
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Cloud Foundry UAA
Server applications / Web servers

CF Deployment
Server applications / Frameworks for developing and running applications

Vendor Cloud Foundry Foundation

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Credentials management

EUVDB-ID: #VU23390

Risk: Medium

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

CVE-ID: CVE-2019-11293

CWE-ID: CWE-255 - Credentials Management

Exploit availability: No

Description

The vulnerability allows a remote user to access sensitive information on a targeted system.

The vulnerability exists due to logs client_secret credentials are sent as a query param, when set to logging level DEBUG. A remote user can gain access to user credentials via the "uaa.log" file if authentication is provided via query parameters.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cloud Foundry UAA: 1.0.0 - ci-upgrade

CF Deployment: 0.0.1 - 12.11.0

External links

http://www.cloudfoundry.org/blog/cve-2019-11293/


Q & A

Can this vulnerability be exploited remotely?

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



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