Inconsistent interpretation of HTTP requests in IBM Cloud Pak for Data System

1) Inconsistent interpretation of HTTP requests

EUVDB-ID: #VU77305

Risk: High

CVSSv4.0: 2.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2020-28473

CWE-ID: CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform HTTP request smuggling attacks.

The vulnerability exists due to the usage of a vector called parameter cloaking. A remote attacker can trick the victim into opening a specially crafted HTTP request, smuggle arbitrary HTTP headers and cause a difference in the interpretation of the request between the proxy (running with default configuration) and the server.

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM Cloud Pak for Data System: before

CPE2.3

• cpe:2.3:a:ibm_corporation:ibm_cloud_pak_for_data_system:*:*:*:*:*:*:*:*

External links

https://www.ibm.com/support/pages/node/7012387

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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