SQL Injection Attacks and Defense - 2009

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A abstract syntax tree (AST), 125 application program interfaces (APIs), 342 Aspect-oriented programming (AOP), 393–394 Asprox Botnet, 77–78 AST. See abstract syntax tree automated source code review abstract syntax tree (AST), 125 AppCodeScan, 127 CodeSecure, 132 command-line utilities, 124 control flow graph (CFG), 125 LAPSE, 127–128 lexical analysis, 124–125 Microsoft analyzer, 128–129 Microsoft code analysis tool .NET (CAT. NET), 129 mysql_query( ) function, 124 Ounce, 131 Pixy, 126–127 SCAs, 130–131 security compass Web application analysis tool (SWAAT), 128 source code analyzers (SCAs), 129–130 static analysis, 131–132 yet another source code analyzer (YASCA), 125–126 automated SQL injection discovery database error, 80 GET and POST requests, 80 HP Scrawlr, 85–87 HP WebInspect authentication mechanisms, 82 Hewlett-Packard, 81 testing string, 83 IBM Rational AppScan, 83–85 Paros Proxy, 88–90 SQLiX, 87–88 tasks, 80 automated techniques absinthe configuration tab, 260 GPL tool, 258 injectable parameter, 259 BSQL hacker extracting database login, 263 features, 260 request and injection tab, 262 URL textbox, 261 SQLBrute FALSE statement, 263–264 python interpreter, 263 sqlninja extraction of username, 265 SQL server installations, 264 squeeza DNS channel, 265 GET and POST parameters, 266 B BCP. See bulk copy program blind SQL injection techniques channels, 234 inference techniques ASCII( ) function, 231 bitstring, 234 bitwise operations, 232 extracting data method, 230 one bit information, 226 SQL Server database, 227 status parameter, 228 Index 459
460 Index blind SQL injection techniques (Continued) SUBSTRING( ) function, 228–229 transact-SQL, 233 integer value, 234 Bobcat, 211–212 BSQL active session, 212–213 databases, 212 remote database, 214 built-in stored procedures, 343 bulk copy program (BCP), 296 bypassing input validation filters HTTP encoding, 442–443 quote filters, 440–442 C C# applications coding behavior recognition, 104–105 dangerous funtions, 108–109 data process, 115–116 CAT.NET. See Microsoft code analysis tool .NET channels database connections OPENROWSET command, 250–251 transmission control protocol (TCP), 250 DNS exfiltration advantages, 251 GET_HOST function, 252 stored procedure, 254–255 universal naming convention (UNC), 253 VARBINARY parameter, 254 xp_cmdshell procedure, 252 zone attacker.com, 255 E-mail exfiltration, 255–256 HTTP exfiltration HTTPURITYPE package, 256 Oracle function, 256–257 ORDER BY clause, 258 CLR. See Microsoft common language runtime CMS. See content management system code-level defenses application program interfaces (APIs), 342 canonicalization approaches ASCII equivalents, 364 framework, 365 input normalization, 364 input validty, 365 normalization process, 364 design techniques avoiding obvious object names, 369–370 database honeypots, 370–371 handling sensitive data, 368–369 secure development resources, 371–372 using abstraction layers, 367 using stored procedures, 366–367 encoding output, database, 355–392 Java database connectivity (JDBC), 344 parameterized statements .NET (C#), 345–347 advantage, 342 dynamic string building, 342–343 Java, 344–345 PHP, 347–348 PL/SQL, 348–349 statements, 343–344 secure coding, 342 validating input .NET, 354 blacklisting, 351–352 Java, 353–354 PHP, 354–355 whitelisting, 349–351 COLUMN privileges, 181–183 common language runtime (CLR), 286–288
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Justin Clarke Lead Author and Techn
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Lead Author and Technical Editor Ju
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exploiting, and correcting software
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Dafydd Stuttard is the author of th
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Contents Chapter 1 What Is SQL Inje
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Contents xi LAPSE. ................
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Contents xiii Generic MySQL Binary
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Contents xv Chapter 8 Code-Level De
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Contents xvii Increase the Verbosit
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Contents xix Ingres Cheat Sheet....
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Chapter 1 What Is SQL Injection? So
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What Is SQL Injection? • Chapter
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execute the query against the datab
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Incorrectly Handled Query Assembly
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} } reader = cmd.ExecuteReader(); r
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Chapter 2 Testing for SQL Injection
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Testing for SQL Injection • Chapt
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SELECT * FROM products WHERE idprod
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Figure 2.15 Exploitation Terminatin
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Time Delays Testing for SQL Injecti
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Summary Testing for SQL Injection
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Chapter 3 Reviewing Code for SQL In
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Reviewing Code for SQL Injection
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mssql_bind() − adds a parameter t
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OdbcCommand() − used to construct
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Reviewing PL/SQL and T-SQL Code Rev
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■■ ■■ ■■ ■■ URL: ht
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■■ ■■ Platform: Windows Pri
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Summary Reviewing Code for SQL Inje
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Frequently Asked Questions Reviewin
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Chapter 4 Exploiting SQL Injection
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Exploiting SQL Injection • Chapte
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Approach 3: Content-based Exploitin
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Error Messages in Oracle Exploiting
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MySQL Exploiting SQL Injection •
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Such a query will return output sim
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SELECT name,spare4 FROM sys.user$ w
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[+] Bruteforcing the sa password. T
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select user_name,web_password_raw f
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HTTP/DNS Exploiting SQL Injection
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Summary Exploiting SQL Injection
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Escalating Privileges Exploiting SQ
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Chapter 5 Blind SQL Injection Explo
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Blind SQL Injection Exploitation
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Common Blind SQL Injection Scenario
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1. Is the byte greater than 127? No
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Using Time-Based Techniques Blind S
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SELECT * FROM unknowntable UNION SE
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Figure 5.13 Extracting Database Log
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Summary Blind SQL Injection Exploit
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Chapter 6 Exploiting the Operating
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Exploiting the Operating System •
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[operating systems] multi(0)disk(0)
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Figure 6.13 Enabling CLR Integratio
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Oracle Exploiting the Operating Sys
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) c / ) ) ), bfilename('GETPWDIR',
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As expected, this creates sp.txt fi
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2 443 [+] Calling msfpayload3 to c
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DBMS_ADVISOR is probably the shorte
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EXECUTE IMMEDIATE q'!drop directory
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Microsoft SQL Server Exploiting the
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Figure 6.22 Creating an UNSAFE Bina
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Executing Operating System Commands
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Endnotes Exploiting the Operating S
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Chapter 7 Advanced Topics Solutions
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Using Case Variation Advanced Topic
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4. The application URL decodes the
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Advanced Topics • Chapter 7 323 D
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Advanced Topics • Chapter 7 325 I
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Advanced Topics • Chapter 7 327 w
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Advanced Topics • Chapter 7 329 N
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Advanced Topics • Chapter 7 331 m
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Advanced Topics • Chapter 7 333 1
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Using Hybrid Attacks Advanced Topic
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Exploiting Authenticated Vulnerabil
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Advanced Topics • Chapter 7 339
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Chapter 8 Code-Level Defenses Solut
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Code-Level Defenses • Chapter 8 3
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END; Execute immediate 'SELECT coun
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Validating Input in Java Code-Level
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UTL_SMTP.HELO(v_connection,'mailhos
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Summary Code-Level Defenses • Cha
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Chapter 9 Platform-Level Defenses S
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Platform-Level Defenses • Chapter
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Figure 9.3 Whitelist Rule to Patch
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Application Filters Platform-Level
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Use Strong Cryptography to Protect
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Page 430 and 431: Platform-Level Defenses • Chapter
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SQL Injection Attacks and Defense - 2009

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