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CVE-2019-1721— Cisco Expressway Series and Cisco TelePresence Video Communication Server Denial of Service Vulnerability

Quick assessment

Affected
Cisco Cisco TelePresence Video Communication Server (VCS)
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 Expressway Series和Cisco TelePresence Video Communication Server（VCS）都是美国思科（Cisco）公司的产品。Cisco Expressway Series是一款用于统一通信的高级协作网关。Cisco TelePresence Video Communication Server是一款视频通信服务器。 Cisco Expressway Series和Cisco TelePresence VCS X12.5.1之前版本中的电话簿功能

AI Predicted 6.5 Difficulty: Moderate EPSS 2.03% · P80
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I. Basic Information for CVE-2019-1721

Vulnerability Information
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Vulnerability Title
Cisco Expressway Series and Cisco TelePresence Video Communication Server Denial of Service Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the phone book feature of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated, remote attacker to cause the CPU to increase to 100% utilization, causing a denial of service (DoS) condition on an affected system. The vulnerability is due to improper handling of the XML input. An attacker could exploit this vulnerability by sending a Session Initiation Protocol (SIP) message with a crafted XML payload to an affected device. A successful exploit could allow the attacker to exhaust CPU resources, resulting in a DoS condition. Manual intervention may be required to recover the device. This vulnerability is fixed in Cisco Expressway Series and Cisco TelePresence Video Communication Server Releases X12.5.1 and later.
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 Expressway Series和Cisco TelePresence Video Communication Server 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Expressway Series和Cisco TelePresence Video Communication Server（VCS）都是美国思科（Cisco）公司的产品。Cisco Expressway Series是一款用于统一通信的高级协作网关。Cisco TelePresence Video Communication Server是一款视频通信服务器。 Cisco Expressway Series和Cisco TelePresence VCS X12.5.1之前版本中的电话簿功能
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 TelePresence Video Communication Server (VCS) unspecified ~ X12.5.1 -

II. Public POCs for CVE-2019-1721

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III. Intelligence Information for CVE-2019-1721

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Vendor Advisories for CVE-2019-1721 (2)

Same Patch Batch · Cisco · 2019-04-18 · 23 CVEs total

CVE-2019-1797 Cisco Wireless LAN Controller Software Cross-Site Request Forgery Vulnerability
CVE-2019-1719 Cisco Identity Services Engine Cross-Site Scripting Vulnerability
CVE-2019-1722 Cisco Expressway Series and Cisco TelePresence Video Communication Server Cross-Site Reque
CVE-2019-1720 Cisco Expressway Series and Cisco TelePresence Video Communication Server Denial of Servic
CVE-2019-1777 Cisco Registered Envelope Service Stored Cross-Site Scripting Vulnerability
CVE-2019-1725 Cisco UCS B-Series Blade Servers Local Management CLI Arbitrary File Creation or CLI Param
CVE-2019-1792 Cisco Umbrella Cross-Site Scripting Vulnerability
CVE-2019-1794 Cisco Directory Connector Search Order Hijacking Vulnerability
CVE-2019-1799 Cisco Wireless LAN Controller Software IAPP Message Handling Denial of Service Vulnerabili
CVE-2019-1796 Cisco Wireless LAN Controller Software IAPP Message Handling Denial of Service Vulnerabili
CVE-2019-1800 Cisco Wireless LAN Controller Software IAPP Message Handling Denial of Service Vulnerabili
CVE-2019-1841 Cisco DNA Center Unintended Proxy Via SWIM Import Interface Vulnerability
CVE-2019-1805 Cisco Wireless LAN Controller Secure Shell Unauthorized Access Vulnerability
CVE-2019-1802 Cisco Firepower Management Center Persistent Cross-Site Scripting Vulnerability
CVE-2019-1830 Cisco Wireless LAN Controller Locally Significant Certificate Denial of Service Vulnerabil
CVE-2019-1829 Cisco Aironet Series Access Points Command Injection Vulnerability
CVE-2019-1826 Cisco Aironet Series Access Points Quality of Service Denial of Service Vulnerability
CVE-2019-1835 Cisco Aironet Series Access Points Directory Traversal Vulnerability
CVE-2019-1834 Cisco Aironet Series Access Points Denial of Service Vulnerability
CVE-2019-1831 Cisco Email Security Appliance Content Filter Bypass Vulnerability

Showing top 20 of 23 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Cisco TelePresence Video Communication Server (VCS)
Same vendor: Cisco
Same weakness: CWE-20

V. Comments for CVE-2019-1721

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