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CVE-2019-1718— Cisco Identity Services Engine SSL Renegotiation Denial of Service Vulnerability

Quick assessment

Affected
Cisco Cisco Identity Services Engine Software
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Cisco Identity Services Engine（ISE）是美国思科（Cisco）公司的一款基于身份的环境感知平台（ISE身份服务引擎）。该平台通过收集网络、用户和设备中的实时信息，制定并实施相应策略来监管网络。 Cisco ISE 2.1版本中的Web界面存在资源管理错误漏洞，该漏洞源于网络系统或产品对系统资源（如内存、磁盘空间、文件等）的管理不当。

AI Predicted 7.5 Difficulty: Easy EPSS 2.52% · P84

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2019-1718

Vulnerability Information
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Vulnerability Title
Cisco Identity Services Engine SSL Renegotiation Denial of Service Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the web interface of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to trigger high CPU usage, resulting in a denial of service (DoS) condition. The vulnerability is due to improper handling of Secure Sockets Layer (SSL) renegotiation requests. An attacker could exploit this vulnerability by sending renegotiation requests at a high rate. An successful exploit could increase the resource usage on the system, eventually leading to a DoS condition. This vulnerability affects version 2.1.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
资源管理错误
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Identity Services Engine 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Identity Services Engine（ISE）是美国思科（Cisco）公司的一款基于身份的环境感知平台（ISE身份服务引擎）。该平台通过收集网络、用户和设备中的实时信息，制定并实施相应策略来监管网络。 Cisco ISE 2.1版本中的Web界面存在资源管理错误漏洞，该漏洞源于网络系统或产品对系统资源（如内存、磁盘空间、文件等）的管理不当。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Cisco Cisco Identity Services Engine Software 2.1(0.907) -

II. Public POCs for CVE-2019-1718

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III. Intelligence Information for CVE-2019-1718

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Vendor Advisories for CVE-2019-1718 (2)

Same Patch Batch · Cisco · 2019-04-17 · 8 CVEs total

CVE-2018-0248 Cisco Wireless LAN Controller Software GUI Configuration Denial of Service Vulnerabilities
CVE-2018-0382 Cisco Wireless LAN Controller Software Session Hijacking Vulnerability
CVE-2019-1654 Cisco Aironet Series Access Points Development Shell Access Vulnerability
CVE-2019-1710 Cisco IOS XR 64-Bit Software for Cisco ASR 9000 Series Aggregation Services Routers Networ
CVE-2019-1686 Cisco ASR 9000 Series Aggregation Services Routers ACL Bypass Vulnerability
CVE-2019-1711 Cisco IOS XR gRPC Software Denial of Service Vulnerability
CVE-2019-1712 Cisco IOS XR Software Protocol Independent Multicast Denial of Service Vulnerability

IV. Related Vulnerabilities

Same product: Cisco Identity Services Engine Software
Same vendor: Cisco
Same weakness: CWE-399

V. Comments for CVE-2019-1718

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