{
  "Name": "Apache James Log4j2 command execution vulnerability(CVE-2021-44228)",
  "Description": "<p>Apache James is the next free open source free mail server of Apache foundation that provides POP3 and STMP for free.</p><p>Apache James uses log4j2 to have a command execution vulnerability. Attackers can use this vulnerability to arbitrarily execute code on the server side, write backdoors, obtain server permissions, and then control the entire web server.</p>",
  "Product": "Apache James",
  "Homepage": "https://james.apache.org/",
  "DisclosureDate": "2021-12-22",
  "Author": "Chin",
  "FofaQuery": "app=\"JAMES-Mail-Server\" || (banner=\"JAMES\" && protocol=\"smtp\")",
  "GobyQuery": "app=\"JAMES-Mail-Server\" || (banner=\"JAMES\" && protocol=\"smtp\")",
  "Level": "3",
  "Impact": "<p>Apache James uses log4j2 to have a command execution vulnerability. Attackers can use this vulnerability to arbitrarily execute code on the server side, write backdoors, obtain server permissions, and then control the entire web server.</p>",
  "Recommendation": "<p>The official website has not fixed the vulnerability, please contact the vendor to fix the vulnerability: <a href=\"https://james.apache.org/\">https://james.apache.org/< /a></p><p>Temporary solution:</p><p><span style=\"color: var(--primaryFont-color);\">1, upgrade log4j2 to the latest version:< /span><br></p><p>&nbsp;Download address: <a href=\"https://github.com/apache/logging-log4j2\">https://github.com/apache/ logging-log4j2</a></p><p>2. Emergency mitigation measures:</p><p>(1) Modify the jvm parameter -Dlog4j2.formatMsgNoLookups=true</p><p>(2) Modify Configure log4j2.formatMsgNoLookups=True</p><p>(3) Set the system environment variable FORMAT_MESSAGES_PATTERN_DISABLE_LOOKUPS to true</p>",
  "References": [
    "https://fofa.so/"
  ],
  "Translation": {
    "CN": {
	  "Name": "Apache James Log4j2 命令执行漏洞（CVE-2021-44228）",
      
      "Product": "Apache James",
      "VulType": [
        "命令执行"
      ],
      "Tags": [
        "命令执行"
      ],
	  "Description": "<p><span style=\"color: rgb(22, 51, 102); font-size: 16px;\"><span style=\"color: rgb(22, 51, 102); font-size: 16px;\">Apache James</span>是apache基金会下一款免费的提供pop3、stmp的开源免费邮件服务器。<br></span></p><p><span style=\"color: rgb(22, 51, 102); font-size: 16px;\"></span>Apache James<span style=\"color: rgb(22, 51, 102); font-size: 16px;\"> 使用 log4j2 存在命令执行漏洞，攻击者可通过该漏洞在服务器端任意执行代码，写入后门，获取服务器权限，进而控制整个web服务器。</span><br></p>",
      "Impact": "<p><span style=\"color: rgb(22, 51, 102); font-size: 16px;\">Apache James</span><span style=\"color: rgb(22, 51, 102); font-size: 16px;\">&nbsp;使用 log4j2 存在命令执行漏洞，攻击者可通过该漏洞在服务器端任意执行代码，写入后门，获取服务器权限，进而控制整个web服务器。</span><br></p>",
      "Recommendation": "<p>官⽅暂未修复该漏洞，请⽤户联系⼚商修复漏洞：</p><p>临时解决方案：</p><p><span style=\"color: var(--primaryFont-color);\">1、升级log4j2至最新版本：</span><br></p><p>&nbsp;下载地址：<a href=\"https://github.com/apache/logging-log4j2\">https://github.com/apache/logging-log4j2</a></p><p>2、紧急缓解措施：</p><p>（1） 修改 jvm 参数 -Dlog4j2.formatMsgNoLookups=true</p><p>（2） 修改配置 log4j2.formatMsgNoLookups=True</p><p>（3） 将系统环境变量 FORMAT_MESSAGES_PATTERN_DISABLE_LOOKUPS 设置 为 true</p>"
      
    }
  },
  "Is0day": false,
  "HasExp": false,
  "ExpParams": [],
  "ExpTips": {
    "Type": "",
    "Content": ""
  },
  "ScanSteps": [
    "AND",
    {
      "Request": {
        "method": "GET",
        "uri": "/test.php",
        "follow_redirect": true,
        "header": {},
        "data_type": "text",
        "data": ""
      },
      "ResponseTest": {
        "type": "group",
        "operation": "AND",
        "checks": [
          {
            "type": "item",
            "variable": "$code",
            "operation": "==",
            "value": "200",
            "bz": ""
          },
          {
            "type": "item",
            "variable": "$body",
            "operation": "contains",
            "value": "test",
            "bz": ""
          }
        ]
      },
      "SetVariable": []
    }
  ],
  "ExploitSteps": [
    "AND",
    {
      "Request": {
        "method": "GET",
        "uri": "/test.php",
        "follow_redirect": true,
        "header": {},
        "data_type": "text",
        "data": ""
      },
      "ResponseTest": {
        "type": "group",
        "operation": "AND",
        "checks": [
          {
            "type": "item",
            "variable": "$code",
            "operation": "==",
            "value": "200",
            "bz": ""
          },
          {
            "type": "item",
            "variable": "$body",
            "operation": "contains",
            "value": "test",
            "bz": ""
          }
        ]
      },
      "SetVariable": []
    }
  ],
  "Tags": [
    "RCE"
  ],
  "VulType": [
    "RCE"
  ],
  "CVEIDs": [
    "CVE-2021-44228"
  ],
  "CNNVD": [
    "CNNVD-202112-799"
  ],
  "CNVD": [
    "CNVD-2021-95914"
  ],
  "CVSSScore": "10.0",
  "AttackSurfaces": {
    "Application": null,
    "Support": null,
    "Service": null,
    "System": null,
    "Hardware": null
  }
}