Web 渗透与 AI 辅助攻防。https://xycovo.com/https://xycovo.com/posts/src-submission-craft-notes/https://xycovo.com/posts/src-submission-craft-notes/三份提交稿复盘：三级链定级论证、OIDC 绕过报告结构与提交要点。Tue, 08 Sep 2026 16:00:00 GMThttps://xycovo.com/posts/src-platform-submission-notes/https://xycovo.com/posts/src-platform-submission-notes/两个平台的规则差异、踩过的坑与提交门道。全文脱敏。Sat, 05 Sep 2026 13:30:00 GMThttps://xycovo.com/posts/apifox-cdn-poisoning-ir/https://xycovo.com/posts/apifox-cdn-poisoning-ir/供应链投毒应急复盘：CDN 埋点 JS 被注入窃密代码，用 Wayback 找回样本、反混淆载荷并定位 C2。Tue, 01 Sep 2026 23:00:45 GMThttps://xycovo.com/posts/edusrc-recon-vuln-patterns/https://xycovo.com/posts/edusrc-recon-vuln-patterns/一周 7 所高校授权目标的侦察复盘：国产教育软件指纹图谱、五类高频漏洞模式与 WAF 封禁对抗。全文脱敏。Wed, 26 Aug 2026 20:00:00 GMThttps://xycovo.com/posts/mining-trojan-ir-notes/https://xycovo.com/posts/mining-trojan-ir-notes/CPU 99% 但 top 看不到进程：busybox top、@reboot、ld.so.preload 三层排查。Fri, 21 Aug 2026 13:30:49 GMThttps://xycovo.com/posts/ir-and-pentest-case-review/https://xycovo.com/posts/ir-and-pentest-case-review/一次阿里云入侵应急的完整排查（时间线定位、三份日志、grep 挖马）、应急流程标准、AKSK 泄露攻击链拆解与密码喷洒。Sun, 09 Aug 2026 21:30:05 GMThttps://xycovo.com/posts/first-vuln-sms-key/https://xycovo.com/posts/first-vuln-sms-key/从接口审计发现短信平台凭据泄露，到无害验证、提交过审的完整记录。已脱敏。Thu, 06 Aug 2026 22:30:00 GMThttps://xycovo.com/posts/six-chain-preauth-rce-debug-notes/https://xycovo.com/posts/six-chain-preauth-rce-debug-notes/WordPress 源码级调试：缓存投毒、oEmbed、Customizer、REST 重入六环链复盘。Fri, 24 Jul 2026 13:45:04 GMThttps://xycovo.com/posts/ai-agent-pentest-notes/https://xycovo.com/posts/ai-agent-pentest-notes/拆解 AI Agent 三大组件、MCP 协议的能力边界与上下文膨胀问题，以及 AI 辅助前端逆向与密码喷洒的实战链路。Fri, 17 Jul 2026 11:00:43 GMThttps://xycovo.com/posts/app-miniprogram-pentest-primer/https://xycovo.com/posts/app-miniprogram-pentest-primer/App 与小程序渗透：抓包失败的原理、证书绑定绕过手法与反编译挖凭据。Tue, 07 Jul 2026 21:30:57 GMThttps://xycovo.com/posts/real-pentest-workflow/https://xycovo.com/posts/real-pentest-workflow/授权渗透固化下来的七阶段流程：授权先行、信息收集占一半工作量、无害验证、报告闭环。Mon, 22 Jun 2026 09:30:00 GMThttps://xycovo.com/posts/react2shell-vulnerability-series/https://xycovo.com/posts/react2shell-vulnerability-series/RSC 远程代码执行解析：Thenable 概念、Flight 协议与 unicode/大包 WAF 绕过。Sat, 20 Jun 2026 13:15:34 GMThttps://xycovo.com/posts/cms-framework-vuln-landscape/https://xycovo.com/posts/cms-framework-vuln-landscape/从 WordPress、ThinkPHP 到织梦：老洞的实战概率与「打常见框架还是打新 CVE」的判断。Mon, 08 Jun 2026 23:00:29 GMThttps://xycovo.com/posts/src-recon-tool-notes/https://xycovo.com/posts/src-recon-tool-notes/Python 信息收集流水线：编排 OneForAll/FOFA/Hunter 与 YAML POC 引擎。Tue, 02 Jun 2026 15:15:00 GMThttps://xycovo.com/posts/sql-smuggling-pgx-cve-2024-27304/https://xycovo.com/posts/sql-smuggling-pgx-cve-2024-27304/DEF CON 32 议题复现：pgx 驱动 2^32 长度溢出实现协议层查询走私。Fri, 22 May 2026 10:45:03 GMThttps://xycovo.com/posts/freemarker-ssti-and-jimureport-cve/https://xycovo.com/posts/freemarker-ssti-and-jimureport-cve/FreeMarker SSTI：视图名解析、内存模板遮蔽与积木报表未授权 RCE 的代码级分析。Wed, 06 May 2026 16:00:04 GMThttps://xycovo.com/posts/msf-cs-framework-notes/https://xycovo.com/posts/msf-cs-framework-notes/MSF 模块体系与 SMB 利用流程、CS 的 Team Server/Beacon 架构与部署细节。Sat, 25 Apr 2026 16:15:52 GMThttps://xycovo.com/posts/daiqile-audit-walkthrough/https://xycovo.com/posts/daiqile-audit-walkthrough/PHP 代码审计靶场复盘：call_user_func 可控性、一句话马形态与 .git 泄露源码恢复。Wed, 15 Apr 2026 13:30:00 GMThttps://xycovo.com/posts/windows-privilege-escalation-notes/https://xycovo.com/posts/windows-privilege-escalation-notes/账号与 ACL 体系、内核提权补丁查询、四类服务提权与 SAM 导出、Pass-the-Hash。Wed, 08 Apr 2026 15:00:24 GMThttps://xycovo.com/posts/linux-privilege-escalation-notes/https://xycovo.com/posts/linux-privilege-escalation-notes/四类常规提权方法的真实成功率、内核提权的漏洞选型与补丁排查，以及「提权失败是常态」的排查心法。Wed, 01 Apr 2026 15:15:27 GMThttps://xycovo.com/posts/safeline-bypass-and-cloud-alert-notes/https://xycovo.com/posts/safeline-bypass-and-cloud-alert-notes/雷池 9.2.7 差异化绕过、「流量必须过雷池」的架构配置与端口映射坑，以及腾讯云告警背后的攻防案例。Sun, 22 Mar 2026 13:00:10 GMThttps://xycovo.com/posts/php-webshell-evasion-notes/https://xycovo.com/posts/php-webshell-evasion-notes/静态/动态引擎的检测差异、污点追踪的两种中断方式、Session Handler 动态写入、函数别名与哈希碰撞对抗。Tue, 10 Mar 2026 20:45:52 GMThttps://xycovo.com/posts/php-disable-functions-bypass-2025/https://xycovo.com/posts/php-disable-functions-bypass-2025/两条新链：CURLOPT_SSLENGINE 加载 so 直达 libc、Pdo\Sqlite 加载扩展后门。Sun, 01 Mar 2026 21:00:48 GMThttps://xycovo.com/posts/lfi-and-sqli-real-target/https://xycovo.com/posts/lfi-and-sqli-real-target/文件包含到 RCE 的脚本包（竞态、日志毒化）与真实目标注入的正则回溯绕过。Sun, 08 Feb 2026 14:30:19 GMThttps://xycovo.com/posts/non-alphanumeric-rce-notes/https://xycovo.com/posts/non-alphanumeric-rce-notes/反引号执行、伪协议写文件、问号通配符匹配临时文件，以及 preg_replace /e 分组注入与参数点号转下划线的冷知识。Thu, 05 Feb 2026 21:30:57 GMThttps://xycovo.com/posts/sql-waf-bypass-handbook/https://xycovo.com/posts/sql-waf-bypass-handbook/五类基础绕过的等价替换、双写与内联注释的边界、正则回溯与十六进制子查询两个进阶手法。Thu, 29 Jan 2026 15:15:47 GMThttps://xycovo.com/posts/php-deserialization-advanced-notes/https://xycovo.com/posts/php-deserialization-advanced-notes/Session 引擎不一致、phar 触发面、ThinkPHP 链节点与 INTO DUMPFILE 组合拳。Mon, 26 Jan 2026 14:00:34 GMThttps://xycovo.com/posts/lfi-to-rce-advanced-notes/https://xycovo.com/posts/lfi-to-rce-advanced-notes/伪协议利用、Docker 里日志包含失效的坑、filter chain 无上传 RCE 与高校内网实战。Fri, 26 Dec 2025 09:15:51 GMThttps://xycovo.com/posts/ssrf-to-redis-rce-lab/https://xycovo.com/posts/ssrf-to-redis-rce-lab/gopher 打 Redis 三板斧、CRLF 劫持会话触发反序列化与 SSRF 打 FastCGI。Sat, 20 Dec 2025 15:00:34 GMThttps://xycovo.com/posts/sql-injection-deep-dive/https://xycovo.com/posts/sql-injection-deep-dive/报错注入原理、时间盲注脚本化、宽字节与二次注入的触发条件。Mon, 17 Nov 2025 22:15:17 GMThttps://xycovo.com/posts/lnmp-dvwa-env-lab-notes/https://xycovo.com/posts/lnmp-dvwa-env-lab-notes/源码编译 LNMP + DVWA 部署：防火墙/SELinux、Nginx/PHP-FPM 联动与 systemd 机制。Fri, 03 Oct 2025 09:00:18 GMThttps://xycovo.com/posts/jeecgboot-sqli-dual-defense-bypass/https://xycovo.com/posts/jeecgboot-sqli-dual-defense-bypass/在框架查重接口挖到注入：绕过应用黑名单与 Druid WallFilter 的布尔盲注构造。Fri, 12 Sep 2025 13:45:44 GMThttps://xycovo.com/posts/source-driven-0day-hunting-workflow/https://xycovo.com/posts/source-driven-0day-hunting-workflow/指纹提取、源码狩猎、批量落地、五路并行审计、实例判定——靠这套流程挖到了通用型 0day。Wed, 27 Aug 2025 09:15:43 GMThttps://xycovo.com/posts/security-knowledge-engineering/https://xycovo.com/posts/security-knowledge-engineering/把 38 个安全仓库、数千份文档读完并提炼成 58 篇结构化笔记的完整方法论：全量学习流水线、精读纪律与 AI 辅助机制。Wed, 13 Aug 2025 11:45:01 GMThttps://xycovo.com/posts/security-defense-blue-notes/https://xycovo.com/posts/security-defense-blue-notes/蓝队视角：雷池部署与拦截分析、HFish 蜜罐告警研判、Linux 主机加固清单与 WebShell 检测思路。Tue, 29 Jul 2025 20:45:57 GMThttps://xycovo.com/posts/php-xdebug-debug-notes/https://xycovo.com/posts/php-xdebug-debug-notes/phpStudy 配 Xdebug、VSCode 监听 9000，单步跟踪 ThinkPHP 反序列化链。Thu, 17 Jul 2025 11:15:29 GMThttps://xycovo.com/posts/waf-bypass-evasion-notes/https://xycovo.com/posts/waf-bypass-evasion-notes/自己的服务器挂雷池 WAF + 蜜罐：一边当防守方看拦截日志，一边拿自己的站练绕过。Sat, 21 Jun 2025 20:45:48 GMThttps://xycovo.com/posts/java-deserialization-cc6-shiro/https://xycovo.com/posts/java-deserialization-cc6-shiro/从序列化机制到 CC6 链原理、Shiro 硬编码密钥利用与冰蝎内存马的注入与查杀。Thu, 05 Jun 2025 13:15:02 GMThttps://xycovo.com/posts/php-deserialization-notes/https://xycovo.com/posts/php-deserialization-notes/魔术方法如何串成 POP 链、phar 反序列化、__wakeup 绕过、字符逃逸与审计找链思路。Tue, 27 May 2025 15:30:43 GMThttps://xycovo.com/posts/nextjs-cve-2025-29927/https://xycovo.com/posts/nextjs-cve-2025-29927/x-middleware-subrequest 请求头绕过 middleware 鉴权，导致未授权访问受保护路由。Thu, 10 Apr 2025 22:00:10 GMThttps://xycovo.com/posts/vulnhub-dc1-writeup/https://xycovo.com/posts/vulnhub-dc1-writeup/DC-1 全流程：信息收集 → Drupalgeddon2（CVE-2018-7600）→ SUID find 提权。Tue, 01 Apr 2025 14:45:09 GMThttps://xycovo.com/posts/cacti-cve-2022-46169/https://xycovo.com/posts/cacti-cve-2022-46169/复现 Cacti 认证绕过 + 命令注入（CVE-2022-46169），含完整利用链与修复方案。Mon, 24 Mar 2025 23:30:24 GMThttps://xycovo.com/posts/ssti-template-injection/https://xycovo.com/posts/ssti-template-injection/Jinja2/Twig 检测、利用链构造、无回显 OOB 探测与修复方案。Mon, 10 Mar 2025 22:45:48 GMThttps://xycovo.com/posts/thinkphp-5137-deserialization/https://xycovo.com/posts/thinkphp-5137-deserialization/在自建靶场复现 ThinkPHP 5.1.x 反序列化，从源码审计 POP 链构造到命令执行全流程与修复建议。Sat, 01 Mar 2025 10:45:00 GMThttps://xycovo.com/posts/pentest-skills-system/https://xycovo.com/posts/pentest-skills-system/把渗透方法论固化成可调用的 Skills：三层架构、AI 双引擎驱动、攻击面自动路由与核心原则。Thu, 20 Feb 2025 09:00:23 GMThttps://xycovo.com/posts/sec-basic-12-final/https://xycovo.com/posts/sec-basic-12-final/从信息收集到 Getshell 的完整链路演练，附 AWVS / AppScan / Xray 使用体验。Wed, 29 Jan 2025 16:30:51 GMThttps://xycovo.com/posts/sec-basic-11-cobalt-strike/https://xycovo.com/posts/sec-basic-11-cobalt-strike/CS 服务端/客户端架构、监听器与 Beacon、提权与横向移动基础。Wed, 22 Jan 2025 11:30:07 GMThttps://xycovo.com/posts/sec-basic-10-metasploit/https://xycovo.com/posts/sec-basic-10-metasploit/MSF 模块体系、ms17-010 实战、Meterpreter 后渗透与木马生成。Sat, 11 Jan 2025 16:15:38 GMThttps://xycovo.com/posts/xss-upload-csrf-idor-notes/https://xycovo.com/posts/xss-upload-csrf-idor-notes/XSS 三类区别、图片马与文件包含配合、一句话马原理、CSRF 与越权复现。Sun, 05 Jan 2025 15:30:00 GMThttps://xycovo.com/posts/sec-basic-09-brute-force/https://xycovo.com/posts/sec-basic-09-brute-force/Burp Intruder 四种攻击模式，表单/验证码/Token 场景下的爆破与绕过。Sun, 29 Dec 2024 10:30:09 GMThttps://xycovo.com/posts/sec-basic-08-csrf-idor/https://xycovo.com/posts/sec-basic-08-csrf-idor/CSRF 改密演示与 token 防护，水平/垂直越权在 Pikachu 的实战演示。Wed, 18 Dec 2024 14:45:53 GMThttps://xycovo.com/posts/sec-basic-07-command-exec/https://xycovo.com/posts/sec-basic-07-command-exec/命令拼接符、系统命令注入与代码注入的区别及过滤绕过思路。Tue, 10 Dec 2024 13:45:56 GMThttps://xycovo.com/posts/xss-labs-walkthrough/https://xycovo.com/posts/xss-labs-walkthrough/每关的过滤点、输出上下文与 Payload 构造思路。Thu, 05 Dec 2024 21:15:00 GMThttps://xycovo.com/posts/sec-basic-06-file-inclusion/https://xycovo.com/posts/sec-basic-06-file-inclusion/本地/远程包含原理，php://filter 伪协议读源码与日志包含 Getshell。Mon, 25 Nov 2024 11:30:40 GMThttps://xycovo.com/posts/sec-basic-05-file-upload/https://xycovo.com/posts/sec-basic-05-file-upload/客户端/服务端校验绕过、图片马制作与解析、%00 截断与二次渲染。Fri, 15 Nov 2024 15:30:44 GMThttps://xycovo.com/posts/sec-basic-04-xss/https://xycovo.com/posts/sec-basic-04-xss/反射型/存储型 XSS 原理、Payload 构造与 Cookie 窃取演示。Sat, 09 Nov 2024 22:30:35 GMThttps://xycovo.com/posts/sec-basic-03-sqlmap/https://xycovo.com/posts/sec-basic-03-sqlmap/宽字节注入原理与验证，sqlmap GET/POST 注入与拖库全流程。Tue, 22 Oct 2024 14:15:34 GMThttps://xycovo.com/posts/https-tls-encryption-notes/https://xycovo.com/posts/https-tls-encryption-notes/加密/哈希/编码的区别、CA-PKI 防中间人，以及 Burp 抓 HTTPS 为什么要装证书。Mon, 14 Oct 2024 21:30:00 GMThttps://xycovo.com/posts/sec-basic-02-sql-basics/https://xycovo.com/posts/sec-basic-02-sql-basics/注入前置知识：库表操作、联合查询、注释符与闭合，SQLi-Labs 入门。Mon, 07 Oct 2024 20:00:18 GMThttps://xycovo.com/posts/web-pentest-first-steps-notes/https://xycovo.com/posts/web-pentest-first-steps-notes/法规红线、POC/EXP 术语辨析、URL 与 DNS 解析、Burp 代理配置与信息收集起点。Fri, 27 Sep 2024 20:15:00 GMThttps://xycovo.com/posts/sec-basic-01-recon/https://xycovo.com/posts/sec-basic-01-recon/七阶段流程，whois/Nmap/目录扫描/Google 语法四类信息收集实操。Sun, 22 Sep 2024 20:30:19 GMThttps://xycovo.com/posts/safeline-hfish-deploy/https://xycovo.com/posts/safeline-hfish-deploy/2 核 2G 云服务器上用 Docker 部署 SafeLine 社区版与 HFish 蜜罐的完整过程。Tue, 10 Sep 2024 21:00:38 GMThttps://xycovo.com/posts/rhcsa-notes-guide/https://xycovo.com/posts/rhcsa-notes-guide/RHEL 环境下 RHCSA 认证要点：系统基础、文件管理、用户权限、网络存储与进程服务。Fri, 23 Aug 2024 10:30:20 GMThttps://xycovo.com/posts/ansible-automation-guide/https://xycovo.com/posts/ansible-automation-guide/RHEL 环境下 Ansible 实操：Inventory 管理、Playbook 编写、变量与循环条件控制。Fri, 16 Aug 2024 13:30:38 GMThttps://xycovo.com/posts/route-policy-guide/https://xycovo.com/posts/route-policy-guide/控制层与数据层流量、ACL/前缀列表抓取路由、Filter-Policy 过滤与 Route-Policy 修改路由属性。Tue, 06 Aug 2024 23:15:16 GMThttps://xycovo.com/posts/ospf-advanced-guide/https://xycovo.com/posts/ospf-advanced-guide/六种 LSA 类型、五种报文格式、特殊区域优化、不规则区域方案与选路原则。Sun, 04 Aug 2024 23:15:16 GMThttps://xycovo.com/posts/burpsuite-intruder-notes/https://xycovo.com/posts/burpsuite-intruder-notes/Intruder 暴破、Repeater 重放、HTTPS 抓包证书配置与 DirBuster 目录扫描流程。Thu, 04 Jul 2024 15:00:10 GMThttps://xycovo.com/posts/ospf-routing-guide/https://xycovo.com/posts/ospf-routing-guide/邻居建立、LSA 类型、区域划分、DR/BDR 选举与华为设备配置。Fri, 21 Jun 2024 21:30:39 GMThttps://xycovo.com/posts/vrrp-guide/https://xycovo.com/posts/vrrp-guide/Master/Backup 选举、抢占模式、上行链路监控与 VRRP+MSTP 组合方案。Sun, 09 Jun 2024 22:45:30 GMThttps://xycovo.com/posts/dvwa-lnmp-lab-notes/https://xycovo.com/posts/dvwa-lnmp-lab-notes/本地与虚拟机两套 DVWA 靶场部署，记录 PHP 版本兼容、MySQL 认证、Nginx 配置等 5 个坑。Thu, 23 May 2024 21:00:33 GMThttps://xycovo.com/posts/phpstudy-dvwa-notes/https://xycovo.com/posts/phpstudy-dvwa-notes/端口冲突处理、数据库配置，以及 VMware + Ubuntu 的备选方案。Fri, 10 May 2024 13:00:28 GMThttps://xycovo.com/posts/link-aggregation-guide/https://xycovo.com/posts/link-aggregation-guide/手工模式与 LACP、华为 Eth-Trunk 配置、负载分担及二三层聚合实战。Wed, 01 May 2024 15:00:21 GMThttps://xycovo.com/posts/spanning-tree-guide/https://xycovo.com/posts/spanning-tree-guide/STP 防环原理、根桥选举、端口角色与状态机、RSTP/MSTP 及华为交换机配置。Wed, 17 Apr 2024 22:45:05 GMThttps://xycovo.com/posts/nmap-scanning-notes/https://xycovo.com/posts/nmap-scanning-notes/-sS/-sT/-sU 常用选项、主机存活探测、服务版本识别与网段扫描实践。Sat, 06 Apr 2024 16:45:41 GMThttps://xycovo.com/posts/campus-network-guide/https://xycovo.com/posts/campus-network-guide/三层架构（接入/汇聚/核心）、二三层交换机区别及路由器角色。Thu, 21 Mar 2024 14:15:30 GMThttps://xycovo.com/posts/tcpip-osi-model-guide/https://xycovo.com/posts/tcpip-osi-model-guide/七层参考模型与 TCP/IP 四层模型对比、各层关键协议与封装解封装过程。Tue, 05 Mar 2024 23:00:22 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