CVE-2020-3267— Cisco Unified Contact Center Express Improper API Authorization Vulnerability
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I. Basic Information for CVE-2020-3267
Vulnerability Information
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Vulnerability Title
Cisco Unified Contact Center Express Improper API Authorization Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the API subsystem of Cisco Unified Contact Center Express (Unified CCX) could allow an authenticated, remote attacker to change the availability state of any agent. The vulnerability is due to insufficient authorization enforcement on an affected system. An attacker could exploit this vulnerability by authenticating to an affected system with valid agent credentials and performing a specific API call with crafted input. A successful exploit could allow the attacker to change the availability state of an agent, potentially causing a denial of service condition.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco Unified Contact Center Express 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Unified Contact Center Express（Unified CCX）是美国思科（Cisco）公司的一款统一通信解决方案中的客户关系管理组件。该组件支持自助语音服务、呼叫分配和客户访问控制等功能。 Cisco Unified Contact Center Express 12.5(1)之前版本中存在授权问题漏洞。攻击者可通过使用有效的代理凭据进行身份验证，并使用特制的输入执行特定的API调用利用该漏洞更改代理的可用性状态，进而导致拒绝服务。
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 Unified Contact Center Express | n/a | - |
II. Public POCs for CVE-2020-3267
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-uccx-api-auth-WSx4v7sBvendor-advisoryx_refsource_CISCO
- https://nvd.nist.gov/vuln/detail/CVE-2020-3267
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-2020-3238 | Cisco IOx Application Framework Arbitrary File Creation Vulnerability | |
| CVE-2020-3258 | Cisco IOS Software for Cisco Industrial Routers Arbitrary Code Execution Vulnerabilities | |
| CVE-2020-3257 | Cisco IOx Application Environment for IOS Software for Cisco Industrial Routers Vulnerabil | |
| CVE-2020-3281 | Cisco Digital Network Architecture Center Information Disclosure Vulnerability | |
| 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-2020-3226 | Cisco IOS and IOS XE Software Session Initiation Protocol Denial of Service Vulnerability | |
| CVE-2020-3224 | Cisco IOS XE Software Web UI Command Injection Vulnerability | |
| CVE-2020-3232 | Cisco ASR 920 Series Aggregation Services Router Model 12SZ-IM SNMP Denial of Service Vuln |
Showing top 20 of 50 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Cisco Unified Contact Center Express
- CVE-2026-20117
Multiple Cisco Contact Center Products Cross-Site Scripting - CVE-2026-20116
Multiple Cisco Contact Center Products Cross-Site Scripting - CVE-2025-20375
Cisco Unified Contact Center Express Arbitrary File Upload V - CVE-2025-20376
Cisco Unified Contact Center Express Remote Code Execution V - CVE-2025-20374
Cisco Unified Contact Center Express Arbitrary File Download
Same vendor: Cisco
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Same weakness: CWE-285
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crocodilestick Calibre-Web-Automated Kobo auth-token Route k
V. Comments for CVE-2020-3267
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