#VU81973 Server-Side Request Forgery (SSRF) in SAP NetWeaver AS JAVA - CVE-2023-42477

Vulnerability identifier: #VU81973

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-42477

CWE-ID: CWE-918

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SAP NetWeaver AS JAVA
Server applications / Application servers

Vendor: SAP

Description

The disclosed vulnerability allows a remote attacker to perform SSRF attacks.

The vulnerability exists due to insufficient validation of user-supplied input in GRMG Heartbeat application. A remote attacker can send a specially crafted HTTP request and trick the application to initiate requests to arbitrary systems.

Successful exploitation of this vulnerability may allow a remote attacker gain access to sensitive data, located in the local network or send malicious requests to other servers from the vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

SAP NetWeaver AS JAVA: 7.50

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External links
https://me.sap.com/notes/3333426
https://www.sap.com/documents/2022/02/fa865ea4-167e-0010-bca6-c68f7e60039b.html

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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.