#VU63714 Inconsistent interpretation of HTTP requests in IBM DataPower Gateway - CVE-2021-38944

Vulnerability identifier: #VU63714

Vulnerability risk: Medium

CVSSv4.0: 1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-38944

CWE-ID: CWE-444

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
IBM DataPower Gateway
Client/Desktop applications / Software for system administration

Vendor: IBM Corporation

Description

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

The vulnerability exists due to improper validation of HTTP requests. A remote attacker 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 DataPower Gateway: 10.0.1.0 - 10.0.1.5, 10.0.2.0, 10.0.3.0

---

External links
https://www.ibm.com/support/pages/node/6587070

---

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.