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CVE-2018-0476— Cisco IOS XE Software NAT Session Initiation Protocol Application Layer Gateway Denial of Service Vulnerability

Quick assessment

Affected
Cisco Cisco IOS XE Software
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Cisco IOS XE Software是美国思科（Cisco）公司的一套为其网络设备开发的操作系统。Network Address Translation（NAT）Session Initiation Protocol（SP）Application Layer Gateway（ALG）是其中的一个网关组件。 Cisco IOS XE Software中的NAT SIP ALG存在资源管理错误漏洞，该漏洞源于在执行NAT时，程序没有正确的处理传输中的SIP数据包。远程攻击者可通过向UDP 5060端口发

AI Predicted 7.5 Difficulty: Easy EPSS 13.70% · P96
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I. Basic Information for CVE-2018-0476

Vulnerability Information
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Vulnerability Title
Cisco IOS XE Software NAT Session Initiation Protocol Application Layer Gateway Denial of Service Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the Network Address Translation (NAT) Session Initiation Protocol (SIP) Application Layer Gateway (ALG) of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability is due to improper processing of SIP packets in transit while NAT is performed on an affected device. An unauthenticated, remote attacker could exploit this vulnerability by sending crafted SIP packets via UDP port 5060 through an affected device that is performing NAT for SIP packets. A successful exploit could allow an attacker to cause the device to reload, resulting in a denial of service (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 IOS XE Software NAT SIP ALG 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IOS XE Software是美国思科（Cisco）公司的一套为其网络设备开发的操作系统。Network Address Translation（NAT）Session Initiation Protocol（SP）Application Layer Gateway（ALG）是其中的一个网关组件。 Cisco IOS XE Software中的NAT SIP ALG存在资源管理错误漏洞，该漏洞源于在执行NAT时，程序没有正确的处理传输中的SIP数据包。远程攻击者可通过向UDP 5060端口发
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 IOS XE Software n/a -

II. Public POCs for CVE-2018-0476

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III. Intelligence Information for CVE-2018-0476

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Vendor Advisories for CVE-2018-0476 (4)

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

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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 IOS XE Software
Same vendor: Cisco
Same weakness: CWE-399

V. Comments for CVE-2018-0476

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