#VU50450 Reverse Tabnabbing in SAPUI5 - CVE-2021-21476

Vulnerability identifier: #VU50450

Vulnerability risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-21476

CWE-ID: CWE-1022

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SAPUI5
Universal components / Libraries / Software for developers

Vendor: SAP

Description

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists within SAPUI5 SDK. A remote attacker can trick the victim to inject a malicious link and change contents of the pages.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

SAPUI5: 1.38.49 - 1.86.1

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External links
https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=568460543
https://launchpad.support.sap.com/#/notes/3014303

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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.