Spring Security严重漏洞(CVE-2026-59270)深度分析与修复指南

# Spring Boot 配置示例
spring:
  ldap:
    embedded:
      enabled: true  # 启用内嵌 LDAP
      port: 8389     # 默认 8389

# Maven 项目检查
mvn dependency:tree | grep spring-security
# Gradle 项目检查
gradle dependencies | grep spring-security
# 检查 Spring Boot 版本（间接依赖）
mvn dependency:tree | grep spring-boot

<!-- Maven 升级示例 -->
<properties>
    <spring-security.version>7.1.1</spring-security.version>
</properties>

// Gradle 升级示例
ext['spring-security.version'] = '7.1.1'

@Bean
public UnboundIdContainer ldapContainer() {
    UnboundIdContainer container = new UnboundIdContainer();
    container.setPort(8389);
    // 绑定到 localhost
    container.setApplicationContext(new AnnotationConfigApplicationContext());
    // 注：UnboundIdContainer 默认绑定 0.0.0.0，
    // 可考虑在启动后通过系统属性覆盖
    return container;
}

# 防火墙限制 LDAP 端口仅 localhost 可访问
iptables -A INPUT -p tcp --dport 8389 -s 127.0.0.1 -j ACCEPT
iptables -A INPUT -p tcp --dport 8389 -j DROP

# Kubernetes NetworkPolicy 限制访问
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: restrict-ldap
spec:
  podSelector:
    matchLabels:
      app: my-app
  ingress:
  - from:
    - podSelector:
        matchLabels:
          app: my-app
    ports:
    - port: 8389

spring:
  ldap:
    embedded:
      enabled: false  # 禁用内嵌 LDAP

# 检查 LDAP 端口是否暴露在外部
nmap -p 8389 <your-host-ip>
# 检查容器端口映射
docker ps --format "table {{.Names}}\t{{.Ports}}"
# 检查 Kubernetes 服务暴露
kubectl get svc -o wide
# 检查云安全组规则
# AWS: aws ec2 describe-security-groups
# 阿里云: 控制台查看安全组规则