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CVE-2019-15262— Cisco Wireless LAN Controller Secure Shell Denial of Service Vulnerability

Quick assessment

Affected
Cisco Cisco Wireless LAN Controller (WLC)
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 Wireless LAN Controller（WLC）Software是美国思科（Cisco）公司的一套用于配置和管理WLC（无线局域网控制器）的软件。 Cisco WLC Software 8.5.140.0及之前版本中的Secure Shell会话管理存在输入验证错误漏洞，该漏洞源于当SSH连接断开时，程序没有正确删除SSH会话。远程攻击者可通过重复打开SSH连接利用该漏洞造成拒绝服务。

AI Predicted 7.5 Difficulty: Easy EPSS 1.42% · P72

Possible ATT&CK Techniques 1 AI

T1500
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I. Basic Information for CVE-2019-15262

Vulnerability Information
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Vulnerability Title
Cisco Wireless LAN Controller Secure Shell Denial of Service Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the Secure Shell (SSH) session management for Cisco Wireless LAN Controller (WLC) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability exists because the SSH process is not properly deleted when an SSH connection to the device is disconnected. An attacker could exploit this vulnerability by repeatedly opening SSH connections to an affected device. A successful exploit could allow the attacker to exhaust system resources by initiating multiple SSH connections to the device that are not effectively terminated, which could result in a DoS condition.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Wireless LAN Controller Software 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Wireless LAN Controller（WLC）Software是美国思科（Cisco）公司的一套用于配置和管理WLC（无线局域网控制器）的软件。 Cisco WLC Software 8.5.140.0及之前版本中的Secure Shell会话管理存在输入验证错误漏洞，该漏洞源于当SSH连接断开时，程序没有正确删除SSH会话。远程攻击者可通过重复打开SSH连接利用该漏洞造成拒绝服务。
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 Wireless LAN Controller (WLC) unspecified ~ n/a -

II. Public POCs for CVE-2019-15262

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III. Intelligence Information for CVE-2019-15262

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Vendor Advisories for CVE-2019-15262 (1)

Same Patch Batch · Cisco · 2019-10-16 · 41 CVEs total

CVE-2019-15241 Cisco SPA100 Series Analog Telephone Adapters Remote Code Execution Vulnerabilities
CVE-2019-15251 Cisco SPA100 Series Analog Telephone Adapters Remote Code Execution Vulnerabilities
CVE-2019-15247 Cisco SPA100 Series Analog Telephone Adapters Remote Code Execution Vulnerabilities
CVE-2019-15248 Cisco SPA100 Series Analog Telephone Adapters Remote Code Execution Vulnerabilities
CVE-2019-15246 Cisco SPA100 Series Analog Telephone Adapters Remote Code Execution Vulnerabilities
CVE-2019-15244 Cisco SPA100 Series Analog Telephone Adapters Remote Code Execution Vulnerabilities
CVE-2019-15245 Cisco SPA100 Series Analog Telephone Adapters Remote Code Execution Vulnerabilities
CVE-2019-15242 Cisco SPA100 Series Analog Telephone Adapters Remote Code Execution Vulnerabilities
CVE-2019-15243 Cisco SPA100 Series Analog Telephone Adapters Remote Code Execution Vulnerabilities
CVE-2019-15240 Cisco SPA100 Series Analog Telephone Adapters Remote Code Execution Vulnerabilities
CVE-2019-15250 Cisco SPA100 Series Analog Telephone Adapters Remote Code Execution Vulnerabilities
CVE-2019-12705 Cisco Expressway Series and TelePresence Video Communication Server Cross-Site Scripting V
CVE-2019-12708 Cisco SPA100 Series Analog Telephone Adapters Administrative Credentials Information Discl
CVE-2019-12718 Cisco Small Business Smart and Managed Switches Cross-Site Scripting Vulnerability
CVE-2019-12703 Cisco SPA122 ATA with Router Devices DHCP Services Cross-Site Scripting Vulnerability
CVE-2019-12704 Cisco SPA100 Series Analog Telephone Adapters Web-Based Management Interface File Disclosu
CVE-2019-12638 Cisco Identity Services Engine Stored Cross-Site Scripting Vulnerability
CVE-2019-12702 Cisco SPA100 Series Analog Telephone Adapters Reflected Cross-Site Scripting Vulnerability
CVE-2019-12636 Cisco Small Business Smart and Managed Switches Cross-Site Request Forgery Vulnerability
CVE-2019-12637 Cisco Identity Services Engine Multiple Stored Cross-Site Scripting Vulnerabilities

Showing top 20 of 41 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Cisco Wireless LAN Controller (WLC)
Same vendor: Cisco
Same weakness: CWE-20

V. Comments for CVE-2019-15262

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