All files / src/rules dangerous_statement.ts

93.22% Statements 110/118
80% Branches 28/35
100% Functions 8/8
93.22% Lines 110/118

Press n or j to go to the next uncovered block, b, p or k for the previous block.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 1191x 1x 1x 1x 1x 1x 1x 1x 1x 17843x 17843x 17843x 17843x 17843x 17843x 17843x 17843x 17843x 17843x 17843x 17843x 17843x 17843x 17843x 17843x 17843x 17843x 17843x 1x 8922x 8922x 8922x 8922x 8922x 77525x 77525x 77525x 77525x 77525x 77525x 77525x 77525x 77525x 8922x 8922x 7x 7x 8922x 8922x 8485x 8485x 8922x 8922x 202x 202x 8922x 8922x 226x 226x 226x 1222x 1222x 1222x 1x 1222x 1x 1221x 1x 1220x 1x 1219x   1218x   1218x   1218x   1218x   1218x   1218x     1222x 1222x 4x 4x 1222x 1222x 1222x 1222x 3x 3x 1222x 1222x 226x 226x 226x 8922x 8922x 1222x 1222x 1222x 1222x 1222x 1222x 1222x 10x 10x 3x 3x 10x 1219x 1219x 8922x 8922x  
import * as Statements from "../abap/2_statements/statements";
import * as Expressions from "../abap/2_statements/expressions";
import {Issue} from "../issue";
import {ABAPRule} from "./_abap_rule";
import {BasicRuleConfig} from "./_basic_rule_config";
import {IRuleMetadata, RuleTag} from "./_irule";
import {ABAPFile} from "../abap/abap_file";
import {StatementNode} from "../abap/nodes";
 
export class DangerousStatementConf extends BasicRuleConfig {
  /** Detects execSQL (dynamic SQL) */
  public execSQL: boolean = true;
  /** Detects kernel calls */
  public kernelCall: boolean = true;
  /** Detects SYSTEM-CALL */
  public systemCall: boolean = true;
  /** Detects INSERT REPORT */
  public insertReport: boolean = true;
  public generateDynpro: boolean = true;
  public generateReport: boolean = true;
  public generateSubroutine: boolean = true;
  public deleteReport: boolean = true;
  public deleteTextpool: boolean = true;
  public deleteDynpro: boolean = true;
  public exportDynpro: boolean = true;
  /** Finds instances of dynamic SQL: SELECT, UPDATE, DELETE, INSERT, MODIFY */
  public dynamicSQL: boolean = true;
}
 
export class DangerousStatement extends ABAPRule {
 
  private conf = new DangerousStatementConf();
 
  public getMetadata(): IRuleMetadata {
    return {
      key: "dangerous_statement",
      title: "Dangerous statement",
      shortDescription: `Detects potentially dangerous statements`,
      extendedInformation: `Dynamic SQL: Typically ABAP logic does not need dynamic SQL,
dynamic SQL can potentially create SQL injection problems`,
      tags: [RuleTag.SingleFile, RuleTag.Security],
    };
  }
 
  private getDescription(statement: string): string {
    return "Potential dangerous statement " + statement;
  }
 
  public getConfig() {
    return this.conf;
  }
 
  public setConfig(conf: DangerousStatementConf) {
    this.conf = conf;
  }
 
  public runParsed(file: ABAPFile) {
    const issues: Issue[] = [];
 
    for (const statementNode of file.getStatements()) {
      const statement = statementNode.get();
      let message: string | undefined = undefined;
      if (this.conf.execSQL && statement instanceof Statements.ExecSQL) {
        message = "EXEC SQL";
      } else if (this.conf.kernelCall && statement instanceof Statements.CallKernel) {
        message = "KERNEL CALL";
      } else if (this.conf.systemCall && statement instanceof Statements.SystemCall) {
        message = "SYSTEM-CALL";
      } else if (this.conf.insertReport && statement instanceof Statements.InsertReport) {
        message = "INSERT REPORT";
      } else if (this.conf.generateDynpro && statement instanceof Statements.GenerateDynpro) {
        message = "GENERATE DYNPRO";
      } else if (this.conf.generateReport && statement instanceof Statements.GenerateReport) {
        message = "GENERATE REPORT";
      } else if (this.conf.generateSubroutine && statement instanceof Statements.GenerateSubroutine) {
        message = "GENERATE SUBROUTINE";
      } else if (this.conf.deleteReport && statement instanceof Statements.DeleteReport) {
        message = "DELETE REPORT";
      } else if (this.conf.deleteTextpool && statement instanceof Statements.DeleteTextpool) {
        message = "DELETE TEXTPOOL";
      } else if (this.conf.deleteDynpro && statement instanceof Statements.DeleteDynpro) {
        message = "DELETE DYNPRO";
      } else if (this.conf.exportDynpro && statement instanceof Statements.ExportDynpro) {
        message = "EXPORT DYNPRO";
      }
 
      if (message) {
        issues.push(Issue.atStatement(file, statementNode, this.getDescription(message), this.getMetadata().key, this.conf.severity));
      }
 
      if (this.conf.dynamicSQL) {
        message = this.findDynamicSQL(statementNode);
        if (message) {
          issues.push(Issue.atStatement(file, statementNode, this.getDescription(message), this.getMetadata().key, this.conf.severity));
        }
      }
    }
 
    return issues;
  }
 
  private findDynamicSQL(statementNode: StatementNode): string | undefined {
    const statement = statementNode.get();
    if (statement instanceof Statements.UpdateDatabase
        || statement instanceof Statements.Select
        || statement instanceof Statements.SelectLoop
        || statement instanceof Statements.InsertDatabase
        || statement instanceof Statements.ModifyDatabase
        || statement instanceof Statements.DeleteDatabase) {
      const dyn = statementNode.findFirstExpression(Expressions.Dynamic);
      if (dyn && dyn.findDirectExpression(Expressions.Constant) === undefined) {
        return "Dynamic SQL";
      }
    }
    return undefined;
  }
 
}