#VU64966 Inconsistent interpretation of HTTP requests in IBM CICS TX Standard - CVE-2022-34306

Vulnerability identifier: #VU64966

Vulnerability risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-34306

CWE-ID: CWE-444

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
IBM CICS TX Standard
Universal components / Libraries / Software for developers

Vendor: IBM Corporation

Description

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

The vulnerability exists due to improper validation of HTTP requests. A remote user can send a specially crafted HTTP request to the server and smuggle arbitrary HTTP headers.

Successful exploitation of vulnerability may allow an attacker to poison HTTP cache and perform phishing attacks.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

IBM CICS TX Standard: 11.1

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External links
https://www.ibm.com/blogs/psirt/security-bulletin-ibm-cics-tx-standard-is-vulnerable-to-http-header-injection-cve-2022-34306/

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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.