#VU78724 Inconsistent interpretation of HTTP requests in SAP Web Dispatcher Kernel and SAP Web Dispatcher WEBDISP - CVE-2023-33987

Vulnerability identifier: #VU78724

Vulnerability risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/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-2023-33987

CWE-ID: CWE-444

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SAP Web Dispatcher Kernel
Server applications / Application servers
SAP Web Dispatcher WEBDISP
Server applications / Other server solutions

Vendor: SAP

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

SAP Web Dispatcher Kernel: 7.49 - 7.90

SAP Web Dispatcher Kernel:

SAP Web Dispatcher WEBDISP: 7.49 - 7.90

---

External links
https://dam.sap.com/mac/app/e/pdf/preview/embed/ucQrx6G?ltr=a&rc=10&july2023

---

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.