Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2020-3482— Cisco Expressway Software Unauthorized Access Information Disclosure Vulnerability

Quick assessment

Affected
Cisco Cisco TelePresence Video Communication Server (VCS) Expressway
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是美国思科（Cisco）公司的一款用于防火墙外访问设备的软件。该软件为防火墙外的用户提供了简单、高度安全的访问功能，帮助远程办公人员在他们选择的设备上更有效地工作。 Cisco Expressway Series Traversal Using Relays around NAT 存在安全漏洞，该漏洞源于在受影响的软件内的TURN服务器对特定连接信息的错误验证造成的。攻击者可利用该漏洞绕过安全控制，将网络流量发送到受限目的地。成功利用该漏洞可以让攻击者通过受影

AI Predicted 9.1 Difficulty: Easy EPSS 1.38% · P71
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2020-3482

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Cisco Expressway Software Unauthorized Access Information Disclosure Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the Traversal Using Relays around NAT (TURN) server component of Cisco Expressway software could allow an unauthenticated, remote attacker to bypass security controls and send network traffic to restricted destinations. The vulnerability is due to improper validation of specific connection information by the TURN server within the affected software. An attacker could exploit this issue by sending specially crafted network traffic to the affected software. A successful exploit could allow the attacker to send traffic through the affected software to destinations beyond the application, possibly allowing the attacker to gain unauthorized network access.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Expressway Series 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Expressway Series是美国思科（Cisco）公司的一款用于防火墙外访问设备的软件。该软件为防火墙外的用户提供了简单、高度安全的访问功能，帮助远程办公人员在他们选择的设备上更有效地工作。 Cisco Expressway Series Traversal Using Relays around NAT 存在安全漏洞，该漏洞源于在受影响的软件内的TURN服务器对特定连接信息的错误验证造成的。攻击者可利用该漏洞绕过安全控制，将网络流量发送到受限目的地。成功利用该漏洞可以让攻击者通过受影
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) Expressway n/a -

II. Public POCs for CVE-2020-3482

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2020-3482

请登录查看更多情报信息。

Vendor Advisories for CVE-2020-3482 (1)

Same Patch Batch · Cisco · 2020-11-18 · 19 CVEs total

CVE-2020-3470 9.8 CRITICAL Cisco Integrated Management Controller Multiple Remote Code Execution Vulnerabilities
CVE-2020-3586 9.4 CRITICAL Cisco DNA Spaces Connector Command Injection Vulnerability
CVE-2020-3471 6.5 MEDIUM Cisco Webex Meetings and Cisco Webex Meetings Server Unauthorized Audio Information Exposu
CVE-2020-3419 6.5 MEDIUM Cisco Webex Meetings and Cisco Webex Meetings Server Ghost Join Vulnerability
CVE-2020-27126 6.1 MEDIUM Cisco Webex Meetings API Cross-Site Scripting Vulnerability
CVE-2020-26068 5.5 MEDIUM Cisco Telepresence CE Software and RoomOS Software Unauthorized Token Generation Vulnerabi
CVE-2020-3441 5.3 MEDIUM Cisco Webex Meetings and Cisco Webex Meetings Server Information Disclosure Vulnerability
CVE-2020-26078 Cisco IoT Field Network Director File Overwrite Vulnerability
CVE-2020-26079 Cisco IoT Field Network Director Unprotected Storage of Credentials Vulnerability
CVE-2020-26080 Cisco IoT Field Network Director Improper Domain Access Control Vulnerability
CVE-2020-26081 Cisco IoT Field Network Director Cross-Site Scripting Vulnerabilities
CVE-2020-3367 Cisco Secure Web Appliance Privilege Escalation Vulnerability
CVE-2020-3392 Cisco IoT Field Network Director Missing API Authentication Vulnerability
CVE-2020-26077 Cisco IoT Field Network Director Improper Access Control Vulnerability
CVE-2020-26076 Cisco IoT Field Network Director Information Disclosure Vulnerability
CVE-2020-26075 Cisco IoT Field Network REST API Insufficient Input Validation Vulnerability
CVE-2020-3531 Cisco IoT Field Network Director Unauthenticated REST API Vulnerability
CVE-2020-26072 Cisco IoT Field Network Director SOAP API Authorization Bypass Vulnerability

IV. Related Vulnerabilities

Same product: Cisco TelePresence Video Communication Server (VCS) Expressway
Same vendor: Cisco
Same weakness: CWE-284

V. Comments for CVE-2020-3482

No comments yet

Leave a comment