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CVE-2019-1845— Cisco Unified Communications Manager IM&P Service, Cisco TelePresence VCS, and Cisco Expressway Series Denial of Service Vulnerability

Quick assessment

Affected
Cisco Cisco TelePresence Video Communication Server (VCS)
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 Expressway Series等都是美国思科（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（VCS）是一款视频通信服务器。Cisco Unified Communications Manager（CUCM，Unified CM，CallManager）是一款统一通信系统中的呼叫处理组件。 多款Cisco产品中的身份验证服务存在输入验证错误漏洞

AI Predicted 7.5 Difficulty: Easy EPSS 4.64% · P91

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2019-1845

Vulnerability Information
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Vulnerability Title
Cisco Unified Communications Manager IM&P Service, Cisco TelePresence VCS, and Cisco Expressway Series Denial of Service Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the authentication service of the Cisco Unified Communications Manager IM and Presence (Unified CM IM&P) Service, Cisco TelePresence Video Communication Server (VCS), and Cisco Expressway Series could allow an unauthenticated, remote attacker to cause a service outage for users attempting to authenticate, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient controls for specific memory operations. An attacker could exploit this vulnerability by sending a malformed Extensible Messaging and Presence Protocol (XMPP) authentication request to an affected system. A successful exploit could allow the attacker to cause an unexpected restart of the authentication service, preventing users from successfully authenticating. Exploitation of this vulnerability does not impact users who were authenticated prior to an attack.
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
多款Cisco产品输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Expressway Series等都是美国思科（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（VCS）是一款视频通信服务器。Cisco Unified Communications Manager（CUCM，Unified CM，CallManager）是一款统一通信系统中的呼叫处理组件。 多款Cisco产品中的身份验证服务存在输入验证错误漏洞
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 ~ 12.5(1) -

II. Public POCs for CVE-2019-1845

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III. Intelligence Information for CVE-2019-1845

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Vendor Advisories for CVE-2019-1845 (2)

Same Patch Batch · Cisco · 2019-06-05 · 9 CVEs total

CVE-2019-1881 Cisco Industrial Network Director Cross-Site Request Forgery Vulnerability
CVE-2019-1882 Cisco Industrial Network Director Stored Cross-Site Scripting Vulnerability
CVE-2019-1870 Cisco Enterprise Chat and Email Cross-Site Scripting Vulnerability
CVE-2019-1872 Cisco TelePresence Video Communication Server and Cisco Expressway Series Server-Side Requ
CVE-2019-1880 Cisco Unified Computing System BIOS Signature Bypass Vulnerability
CVE-2019-1861 Cisco Industrial Network Director Remote Code Execution Vulnerability
CVE-2019-1868 Cisco Webex Meetings Server Information Disclosure Vulnerability
CVE-2019-1842 Cisco IOS XR Software Secure Shell Authentication Vulnerability

IV. Related Vulnerabilities

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

V. Comments for CVE-2019-1845

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