Inconsistent interpretation of HTTP requests in IBM Cloud Pak for Security



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-7764
CWE-ID CWE-444
Exploitation vector Network
Public exploit N/A
Vulnerable software
Cloud Pak for Security (CP4S)
Client/Desktop applications / Other client software

Vendor IBM Corporation

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Inconsistent interpretation of HTTP requests

EUVDB-ID: #VU76518

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-7764

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to web cache poisoning attack when accepting the Accept-Version header by default. A remote attacker can send a specially crafted HTTP request to the server to cause a denial of service condition.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Cloud Pak for Security (CP4S): before 1.10.9.0

CPE2.3 External links

http://www.ibm.com/support/pages/node/6995209


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.



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