AST

学习过程

环境搭建

真实例子

下载

生成数据库

codeql database create <database> --language=<language-identifier>

codeql database create D:\codeqldb/javasec --language=java  --command="mvn clean install --file pom.xml -Dmaven.test.skip=true" --source-root=./javasec

 跳过测试，构建 --command="mvn clean install --file pom.xml -Dmaven.test.skip=true" 无论项目结果如何,构建从不失败 --command="mvn -fn clean install --file pom.xml -Dmaven.test.skip=true"

codeql database init --source-root=<src> --language java <db>codeql database trace-command --working-dir=<src> <db> <java command>codeql database index-files --language xml --include-extension .xml --working-dir=<src> <db>codeql database finalize <db>

codeql database upgrade database/javasec

编译与非编译

基础查询

过滤 Method

根据Method name查询

importjavafromMethodmethodwheremethod.hasName("toObject")selectmethod

importjavafromMethodmethodwheremethod.hasName("toObject")selectmethod,method.getDeclaringType()

根据Method name 和 interface name 查询

importjavafromMethodmethodwheremethod.hasName("toObject")andmethod.getDeclaringType().getASupertype().hasQualifiedName("org.apache.struts2.rest.handler","ContentTypeHandler")selectmethod

Call和Callable

MethodAccess

importjavafromMethodAccesscall,Methodmethodwheremethod.hasName("toObject")andmethod.getDeclaringType().getASupertype().hasQualifiedName("org.apache.struts2.rest.handler","ContentTypeHandler")andcall.getMethod() =methodselectcall

importjavafromMethodAccesscall,Methodmethodwheremethod.hasName("toObject")andmethod.getDeclaringType().getAnAncestor().hasQualifiedName("org.apache.struts2.rest.handler","ContentTypeHandler")andcall.getMethod() =methodselectcall

数据流跟踪

import javaimport semmle.code.java.frameworks.spring.SpringControllerimport semmle.code.java.dataflow.TaintTrackingfrom Call call,Callable parseExpression,SpringRequestMappingMethod routewhere    call.getCallee() = parseExpression and     parseExpression.getDeclaringType().hasQualifiedName("org.springframework.expression", "ExpressionParser") and    parseExpression.hasName("parseExpression") and    TaintTracking::localTaint(DataFlow::parameterNode(route.getARequestParameter()),DataFlow::exprNode(call.getArgument(0))) select route.getARequestParameter(),call

class MyConfig extends DataFlow::Configuration {  MyConfig() { this = "Myconfig" }  override predicate isSource(DataFlow::Node source) {    ....      }    override predicate isSink(DataFlow::Node sink) {    ....      }}

污点跟踪

import semmle.code.java.dataflow.TaintTrackingimport javaclass VulConfig extends TaintTracking::Configuration {VulConfig() { this = "myConfig" }override predicate isSource(DataFlow::Node source) {}override predicate isSink(DataFlow::Node sink) {}}from VulConfig config, DataFlow::PathNode source, DataFlow::PathNode sinkwhere config.hasFlowPath(source, sink)select sink.getNode(), source, sink, "source are"

白盒扫描

codeql database analyze source_database_name qllib/java/ql/src/codeql-suites/java-security-extended.qls --format=csv --output=java-results.csv

/** * @name Incomplete regular expression for hostnames * @description Matching a URL or hostname against a regular expression that contains an unescaped *              dot as part of the hostname might match more hostnames than expected. * @kind path-problem * @problem.severity warning * @security-severity 7.8 * @precision high * @id go/incomplete-hostname-regexp * @tags correctness *       security *       external/cwe/cwe-20 */

文章推荐