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CVE-2018-15391— Cisco Remote PHY IPv4 Fragment Denial of Service Vulnerability

Quick assessment

Affected
Cisco Cisco Remote PHY
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 Remote PHY Software是美国思科（Cisco）公司的一套基于数字光纤的DOCSIS解决方案。该方案使用以太网PON（EPON）和城域网络等作为传输网络。 Cisco Remote PHY Software中的IPv4碎片处理函数存在资源管理错误漏洞。远程攻击者可通过发送畸形的流量利用该漏洞造成拒绝服务。

AI Predicted 7.5 Difficulty: Easy EPSS 1.42% · P71
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I. Basic Information for CVE-2018-15391

Vulnerability Information
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Vulnerability Title
Cisco Remote PHY IPv4 Fragment Denial of Service Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in certain IPv4 fragment-processing functions of Cisco Remote PHY Software could allow an unauthenticated, remote attacker to impact traffic passing through a device, potentially causing a denial of service (DoS) condition. The vulnerability is due to the affected software not validating and calculating certain numerical values in IPv4 packets that are sent to an affected device. An attacker could exploit this vulnerability by sending malformed IPv4 traffic to an affected device. A successful exploit could allow the attacker to disrupt the flow of certain IPv4 traffic passing through an affected device, 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
资源管理错误
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Remote PHY Software 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Remote PHY Software是美国思科（Cisco）公司的一套基于数字光纤的DOCSIS解决方案。该方案使用以太网PON（EPON）和城域网络等作为传输网络。 Cisco Remote PHY Software中的IPv4碎片处理函数存在资源管理错误漏洞。远程攻击者可通过发送畸形的流量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 Remote PHY n/a -

II. Public POCs for CVE-2018-15391

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III. Intelligence Information for CVE-2018-15391

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Vendor Advisories for CVE-2018-15391 (1)

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

CVE-2018-15390 Cisco Firepower Threat Defense Software FTP Inspection 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-2018-15373 Cisco IOS and IOS XE Software Cisco Discovery Protocol Denial of Service 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-2018-15374 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-2018-15372 Cisco IOS XE Software MACsec MKA Using EAP-TLS Authentication Bypass Vulnerability

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

IV. Related Vulnerabilities

Same product: Cisco Remote PHY
Same vendor: Cisco
Same weakness: CWE-399

V. Comments for CVE-2018-15391

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