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CVE-2018-0421— Cisco Prime Access Registrar Denial of Service Vulnerability

Quick assessment

Affected
Cisco Cisco Prime Access Registrar
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 Prime Access Registrar和Prime Access Registrar Jumpstar都是美国思科（Cisco）公司的Cisco Prime访问注册器。 Cisco Prime Access Registrar和Prime Access Registrar Jumpstart 7.3.0.4之前版本和8.0.1.1版本中的TCP连接管理存在资源管理错误漏洞，该漏洞源于程序没有正确的处理发送到监听端口的TCP SYN数据包。远程攻击者可通过向程序发送一连串特制的TCP SY

AI Predicted 7.5 Difficulty: Easy EPSS 3.48% · P88
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I. Basic Information for CVE-2018-0421

Vulnerability Information
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Vulnerability Title
Cisco Prime Access Registrar Denial of Service Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in TCP connection management in Cisco Prime Access Registrar could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition when the application unexpectedly restarts. The vulnerability is due to incorrect handling of incoming TCP SYN packets to specific listening ports. The improper handling of the TCP SYN packets could cause a system file description to be allocated and not freed. An attacker could exploit this vulnerability by sending a crafted stream of TCP SYN packets to the application. A successful exploit could allow the attacker to cause the application to eventually restart if a file description cannot be obtained.
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 Prime Access Registrar和Prime Access Registrar Jumpstar 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Prime Access Registrar和Prime Access Registrar Jumpstar都是美国思科（Cisco）公司的Cisco Prime访问注册器。 Cisco Prime Access Registrar和Prime Access Registrar Jumpstart 7.3.0.4之前版本和8.0.1.1版本中的TCP连接管理存在资源管理错误漏洞，该漏洞源于程序没有正确的处理发送到监听端口的TCP SYN数据包。远程攻击者可通过向程序发送一连串特制的TCP SY
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 Prime Access Registrar n/a -

II. Public POCs for CVE-2018-0421

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III. Intelligence Information for CVE-2018-0421

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Vendor Advisories for CVE-2018-0421 (3)

Same Patch Batch · Cisco · 2018-10-05 · 110 CVEs total

CVE-2018-15391 Cisco Remote PHY IPv4 Fragment Denial of Service Vulnerability
CVE-2018-15408 Cisco Webex Network Recording Player and Cisco Webex Player Remote Code Execution Vulnerab
CVE-2018-15407 Cisco HyperFlex World-Readable Sensitive Information Vulnerability
CVE-2018-15406 Cisco UCS Director Stored Cross-Site Scripting Vulnerability
CVE-2018-15405 Cisco Integrated Management Controller Supervisor and Cisco UCS Director Authenticated Web
CVE-2018-15404 Cisco Integrated Management Controller Supervisor and Cisco UCS Director System Resources
CVE-2018-15403 Multiple Cisco Unified Communications Products Open Redirect Vulnerability
CVE-2018-15401 Cisco Hosted Collaboration Mediation Fulfillment Cross-Site Request Forgery Vulnerability
CVE-2018-15400 Cisco Cloud Services Platform 2100 Cross-Site Scripting Vulnerability
CVE-2018-15399 Cisco Adaptive Security Appliance TCP Syslog Denial of Service Vulnerability
CVE-2018-15398 Cisco Adaptive Security Appliance Access Control List Bypass Vulnerability
CVE-2018-15397 Cisco Adaptive Security Appliance IPsec VPN Denial of Service Vulnerability
CVE-2018-15396 Cisco Unity Connection File Upload Denial of Service Vulnerability
CVE-2018-15392 Cisco Industrial Network Director DHCP Request Processing Denial of Service Vulnerability
CVE-2018-15374 Cisco IOS XE Software Digital Signature Verification Bypass Vulnerability
CVE-2018-15377 Cisco IOS and IOS XE Software Plug and Play Agent Memory Leak Vulnerability
CVE-2018-15376 Cisco IOS Software for Cisco 800 Series Industrial Integrated Services Routers Arbitrary M
CVE-2018-15375 Cisco IOS Software for Cisco 800 Series Industrial Integrated Services Routers Arbitrary M
CVE-2018-15379 Cisco Prime Infrastructure Arbitrary File Upload and Command Execution Vulnerability
CVE-2018-15373 Cisco IOS and IOS XE Software Cisco Discovery Protocol Denial of Service Vulnerability

Showing top 20 of 110 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Cisco Prime Access Registrar
Same vendor: Cisco
Same weakness: CWE-399

V. Comments for CVE-2018-0421

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