Cisco ISE Critical RCE Vulnerability

漏洞信息

漏洞名称： Cisco ISE Critical RCE Vulnerability

漏洞编号：

• CVE： CVE-2025-20281

漏洞类型： 命令执行

漏洞等级： 严重

漏洞描述： ### 受影响产品
Cisco Identity Services Engine (ISE) 和 ISE Passive Identity Connector (ISE‑PIC) 是思科提供的身份服务引擎和被动身份连接器，广泛用于企业网络中的身份验证、授权和审计服务。这些产品在企业级部署中非常常见，用于确保网络安全和合规性。

漏洞解释

CVE-2025-20281 是一个严重的、未经身份验证的远程代码执行（RCE）漏洞，影响 Cisco ISE 和 ISE‑PIC。该漏洞源于特定API端点的输入验证不足，攻击者无需身份验证即可利用此漏洞在系统上以root权限执行任意命令。漏洞类型为命令执行，技术根源在于API端点未能正确验证和处理输入数据。

影响分析

此漏洞的潜在安全风险极高，攻击者可以远程执行任意命令，完全控制系统，可能导致数据泄露、服务中断或其他恶意活动。由于无需身份验证且利用复杂度低，攻击者可以轻松自动化攻击过程。企业应立即应用思科提供的补丁（3.3 Patch 6 或 3.4 Patch 2）以缓解风险，并监控日志以检测异常API请求或行为。此外，建议限制对ISE管理接口的外部访问，并使用检测工具验证补丁应用情况。

产品厂商： Cisco

产品名称： Cisco Identity Services Engine (ISE) / ISE Passive Identity Connector (ISE‑PIC)

影响版本： 3.3 and 3.4.0

来源： https://github.com/B1ack4sh/Blackash-CVE-2025-20281

类型： CVE-2025:github search

仓库文件

• README.md

来源概述

CVE-2025-20281 — Cisco ISE Critical RCE Vulnerability 🛑

📌 Description:

CVE-2025-20281 is a critical, unauthenticated remote code execution (RCE) vulnerability affecting Cisco Identity Services Engine (ISE) and ISE Passive Identity Connector (ISE‑PIC).

An attacker can exploit this flaw without authentication to execute arbitrary commands as root on the system. The vulnerability arises from insufficient input validation in a specific API endpoint.

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🚨 Severity:

• CVSS v3.1 Score: 9.8 / 10 (Critical)
• Attack Vector: Remote
• Privileges Required: None
• User Interaction: None

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🧱 Affected Products:

• Cisco ISE / ISE‑PIC

  • Vulnerable: Versions 3.3 and 3.4.0
  • Not Affected: Versions 3.2 and earlier

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🛡️ Fixed Versions:

• Cisco ISE 3.3 ➝ Patch 6
• Cisco ISE 3.4 ➝ Patch 2

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🧠 Technical Summary:

• Vulnerability Type: Input validation flaw in exposed API
• Impact: Full root-level command execution
• Authentication: Not required
• Exploitation Complexity: Low
• Current Exploits: None publicly known at this time

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✅ Recommendations:

1. Immediately apply patches (3.3 Patch 6 or 3.4 Patch 2).
2. Check Cisco ISE deployments to identify affected versions.
3. Monitor logs for unusual API requests or behavior.
4. Limit external access to ISE management interfaces.
5. Use detection tools to scan and verify patching success.

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🧭 Summary Table:

📆 Date	🗓️ Event Description
June 2025	Vulnerability disclosed
June 25, 2025	Cisco released security advisory and patches
July 2025	Security community confirmed critical risk

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⚠️ Disclaimer & Responsible Use Instructions

🛡️ DISCLAIMER
This content is provided for educational and informational purposes only.
It is intended to raise awareness and help organizations defend against real-world threats.
We do not condone, support, or promote unauthorized access, system compromise, or any malicious activity.

• Do not attempt to exploit this vulnerability on any system you do not own or have explicit written permission to test.
• All testing must be conducted in controlled environments such as isolated labs or authorized penetration testing scopes.
• Misuse of this information may be illegal and could result in criminal prosecution.
• The author assumes no responsibility for any consequences arising from the use or misuse of the details shared herein.

⚠️ Always act responsibly and ethically. Follow your local laws and industry standards such as:

• NIST, OWASP, CIS, and ISO/IEC 27001
• Practice responsible disclosure and cyber hygiene

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👨🏻‍💻 Prerequisites:

• Python 3.6+
• Install dependencies:

pip install requests urllib3