Improper access restriction in SAP Web Dispatcher IP filter

1) Improper restriction of communication channel to intended endpoints

EUVDB-ID: #VU75157

Risk: Medium

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-29108

CWE-ID: CWE-923 - Improper Restriction of Communication Channel to Intended Endpoints

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to improper handling of IP netmask in the IP filter. A remote attacker can gain unauthorized access to the application.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

SAP Web Dispatcher WEBDISP: 7.85 - 7.89

SAP Web Dispatcher Kernel: 7.85 - 7.91

CPE2.3

• cpe:2.3:a:sap:sap_web_dispatcher_webdisp:7.85:*:*:*:*:*:*:*
• cpe:2.3:a:sap:sap_web_dispatcher_webdisp:7.89:*:*:*:*:*:*:*
• cpe:2.3:a:sap:sap_web_dispatcher_kernel:7.85:*:*:*:*:*:*:*
• cpe:2.3:a:sap:sap_web_dispatcher_kernel:7.89:*:*:*:*:*:*:*
• cpe:2.3:a:sap:sap_web_dispatcher_kernel:7.91:*:*:*:*:*:*:*

External links

https://launchpad.support.sap.com/#/notes/3315312
https://www.sap.com/documents/2022/02/fa865ea4-167e-0010-bca6-c68f7e60039b.html

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.