0xBlackash/CVE-2026-21962

GitHub: 0xBlackash/CVE-2026-21962

记录并分析了 CVE-2026-21962 这一影响 Oracle HTTP Server 与 WebLogic 代理插件的严重认证绕过漏洞，提供技术分析、影响评估及缓解建议。

Stars: 0 | Forks: 0

# 🚨 CVE-2026-21962 - 严重身份验证绕过漏洞 Oracle_logo svg

![CVE](https://img.shields.io/badge/CVE-2026--21962-black?style=for-the-badge&logo=hackaday) ![Severity](https://img.shields.io/badge/Severity-Critical-red?style=for-the-badge) ![CVSS](https://img.shields.io/badge/CVSS-10.0-darkred?style=for-the-badge) ![Attack Vector](https://img.shields.io/badge/Attack-Network-blue?style=for-the-badge) ![Privileges](https://img.shields.io/badge/Privileges-None-lightgrey?style=for-the-badge) ![User Interaction](https://img.shields.io/badge/User%20Interaction-None-lightgrey?style=for-the-badge)

## 🧾 概述 ``` CVE ID : CVE-2026-21962 Severity : CRITICAL Published : 2026-01-20 Category : Authentication Bypass CWE : CWE-284 (Improper Access Control) ``` ## 🧠 技术分析 ``` - Authentication boundary is improperly enforced - Crafted HTTP requests bypass access control + Direct access to protected backend resources ``` CVE-2026-21962

## ⚠️ 影响 ``` + Full unauthorized access to application data + Data tampering or deletion + Backend system exposure through proxy chain + Potential lateral movement across services ``` ## 🌐 攻击概要 | Attribute | Value | | --------------------- | ------- | | 🌍 Vector | Network | | ⚙️ Complexity | Low | | ❌ Privileges Required | None | | 👤 User Interaction | None | | 🔄 Scope | Changed | ## 📦 受影响系统

📂 点击展开

### 🖥️ Oracle HTTP Server * 12.2.1.4.0 * 14.1.1.0.0 * 14.1.2.0.0 ### 🔌 WebLogic Proxy Plug-in **Apache** * 12.2.1.4.0 * 14.1.1.0.0 * 14.1.2.0.0 **IIS** * 12.2.1.4.0

## 🛡️ 缓解策略 ### ✅ 主要修复 ``` + Apply latest Oracle Critical Patch Update (Jan 2026) ``` ### 🧯 纵深防御 ``` # 减少暴露 - Restrict proxy endpoints - Limit external access - Enforce network segmentation # Detection & monitoring - Enable HTTP request inspection - Log and analyze anomalies - Deploy WAF protections ``` ## 🔍 检测指标 ``` + Unexpected HTTP requests to proxy endpoints + Access without authentication tokens + Irregular request patterns or headers + Sudden spikes in backend responses ``` ## 📊 风险矩阵 | Factor | Rating | | ---------------- | -------- | | 🔥 Severity | CRITICAL | | ⚡ Exploitability | HIGH | | 💥 Impact | MAXIMUM | ## 🧬 漏洞利用特征 ``` Entry Point : HTTP Request Attack Type : Remote Auth Needed : No Skill Level : Low ``` ## ⚡ TL;DR ## 🧩 可视化威胁流 ``` [ Attacker ] │ ▼ [ Crafted HTTP Request ] │ ▼ [ Proxy Bypass ] │ ▼ [ Backend Access ] │ ▼ [ Data Compromise ] ``` ## 🏁 结语 ``` - This vulnerability requires immediate attention - Delayed patching significantly increases risk + Treat as actively exploitable in real-world scenarios ```

标签：0day, Apache插件, CISA项目, CVE-2026-21962, CVSS 10.0, CWE-284, HTTP请求伪造, Oracle, Oracle HTTP Server, PoC, WebLogic Proxy Plug-in, 企业安全, 关键漏洞, 后端系统暴露, 安全漏洞, 数据展示, 数据篡改, 暴力破解, 未授权访问, 横向移动, 漏洞分析, 红队, 编程规范, 网络攻防, 网络资产管理, 访问控制不当, 路径探测, 身份认证缺陷, 身份验证绕过