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CVE-2020-3226— Cisco IOS and IOS XE Software Session Initiation Protocol Denial of Service Vulnerability

Quick assessment

Affected
Cisco Cisco IOS 15.0(2)SG11a
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 IOS和IOS XE都是美国思科（Cisco）公司的一套为其网络设备开发的操作系统。 Cisco IOS和Cisco IOS XE中的Session Initiation Protocol (SIP)库存在输入验证错误漏洞，该漏洞源于程序未充分检查所收到SIP消息的完整性。攻击者可通过将特制的SIP消息发送到受影响的设备利用该漏洞重新加载受影响的设备，进而导致拒绝服务。以下产品及版本受到影响：Cisco Unified Border Element (CUBE)；Cisco Unified C

AI Predicted 7.5 Difficulty: Easy EPSS 1.55% · P74

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2020-3226

Vulnerability Information
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Vulnerability Title
Cisco IOS and IOS XE Software Session Initiation Protocol Denial of Service Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the Session Initiation Protocol (SIP) library of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient sanity checks on received SIP messages. An attacker could exploit this vulnerability by sending crafted SIP messages to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service 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 IOS和IOS XE 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IOS和IOS XE都是美国思科（Cisco）公司的一套为其网络设备开发的操作系统。 Cisco IOS和Cisco IOS XE中的Session Initiation Protocol (SIP)库存在输入验证错误漏洞，该漏洞源于程序未充分检查所收到SIP消息的完整性。攻击者可通过将特制的SIP消息发送到受影响的设备利用该漏洞重新加载受影响的设备，进而导致拒绝服务。以下产品及版本受到影响：Cisco Unified Border Element (CUBE)；Cisco Unified C
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 15.0(2)SG11a n/a -

II. Public POCs for CVE-2020-3226

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III. Intelligence Information for CVE-2020-3226

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Vendor Advisories for CVE-2020-3226 (1)

Same Patch Batch · Cisco · 2020-06-03 · 50 CVEs total

CVE-2020-3353 5.9 MEDIUM Cisco Identity Services Engine Denial of Service Vulnerability
CVE-2020-3319 3.3 LOW Cisco Webex Network Recording Player and Cisco Webex Player Denial of Service Vulnerabilit
CVE-2020-3322 3.3 LOW Cisco Webex Network Recording Player and Cisco Webex Player Denial of Service Vulnerabilit
CVE-2020-3321 3.3 LOW Cisco Webex Network Recording Player and Cisco Webex Player Denial of Service Vulnerabilit
CVE-2020-3333 Cisco Application Services Engine Software Unauthenticated Event Policies Update Vulnerabi
CVE-2020-3257 Cisco IOx Application Environment for IOS Software for Cisco Industrial Routers Vulnerabil
CVE-2020-3267 Cisco Unified Contact Center Express Improper API Authorization Vulnerability
CVE-2020-3258 Cisco IOS Software for Cisco Industrial Routers Arbitrary Code Execution Vulnerabilities
CVE-2020-3281 Cisco Digital Network Architecture Center Information Disclosure Vulnerability
CVE-2020-3232 Cisco ASR 920 Series Aggregation Services Router Model 12SZ-IM SNMP Denial of Service Vuln
CVE-2020-3200 Cisco IOS and IOS XE Software Secure Shell Denial of Service Vulnerability
CVE-2020-3199 Cisco IOx Application Environment for IOS Software for Cisco Industrial Routers Vulnerabil
CVE-2020-3198 Cisco IOS Software for Cisco Industrial Routers Arbitrary Code Execution Vulnerabilities
CVE-2020-3228 Cisco IOS, IOS XE, and NX-OS Software Security Group Tag Exchange Protocol Denial of Servi
CVE-2020-3231 Cisco IOS Software for Catalyst 2960-L Series Switches and Catalyst CDB-8P Switches 802.1X
CVE-2020-3230 Cisco IOS and IOS XE Software Internet Key Exchange Version 2 Denial of Service Vulnerabil
CVE-2020-3229 Cisco IOS XE Software Web UI Privilege Escalation Vulnerability
CVE-2020-3227 Cisco IOx for IOS XE Software Privilege Escalation Vulnerability
CVE-2020-3224 Cisco IOS XE Software Web UI Command Injection Vulnerability
CVE-2020-3233 Cisco IOx Application Framework Local Manager Stored Cross-Site Scripting Vulnerability

Showing top 20 of 50 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same vendor: Cisco
Same weakness: CWE-20

V. Comments for CVE-2020-3226

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