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CVE-2021-1525— Cisco Webex Meetings and Webex Meetings Server File Redirect Vulnerability

Quick assessment

Affected
Cisco Cisco WebEx Meetings Server
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 Webex Meetings是美国思科（Cisco）公司的一个视频会议和在线会议软件。提供带有共享、聊天等功能的视频和音频会议。 Cisco Webex Meetings和Cisco Webex meeting Server存在输入验证错误漏洞，该漏洞允许未经验证的远程攻击者可利用该漏洞将用户重定向到一个恶意文件。

CVSS 4.7 · Medium EPSS 0.78% · P54
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I. Basic Information for CVE-2021-1525

Vulnerability Information
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Vulnerability Title
Cisco Webex Meetings and Webex Meetings Server File Redirect Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in Cisco Webex Meetings and Cisco Webex Meetings Server could allow an unauthenticated, remote attacker to redirect users to a malicious file. This vulnerability is due to improper validation of URL paths in the application interface. An attacker could exploit this vulnerability by persuading a user to follow a specially crafted URL that is designed to cause Cisco Webex Meetings to include a remote file in the web UI. A successful exploit could allow the attacker to cause the application to offer a remote file to a user, which could allow the attacker to conduct further phishing or spoofing attacks.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
指向未可信站点的URL重定向(开放重定向)
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Webex Meetings 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Webex Meetings是美国思科（Cisco）公司的一个视频会议和在线会议软件。提供带有共享、聊天等功能的视频和音频会议。 Cisco Webex Meetings和Cisco Webex meeting Server存在输入验证错误漏洞，该漏洞允许未经验证的远程攻击者可利用该漏洞将用户重定向到一个恶意文件。
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 WebEx Meetings Server n/a -

II. Public POCs for CVE-2021-1525

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III. Intelligence Information for CVE-2021-1525

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Vendor Advisories for CVE-2021-1525 (1)

Same Patch Batch · Cisco · 2021-06-04 · 15 CVEs total

CVE-2021-1540 8.1 HIGH Cisco ASR 5000 Series Software Authorization Bypass Vulnerabilities
CVE-2021-1539 8.1 HIGH Cisco ASR 5000 Series Software Authorization Bypass Vulnerabilities
CVE-2021-1528 7.8 HIGH Cisco SD-WAN Software Privilege Escalation Vulnerability
CVE-2021-1526 7.8 HIGH Cisco Webex Player Memory Corruption Vulnerability
CVE-2021-1503 7.8 HIGH Cisco Webex Network Recording Player and Webex Player Memory Corruption Vulnerability
CVE-2021-1502 7.8 HIGH Cisco Webex Network Recording Player and Webex Player Memory Corruption Vulnerability
CVE-2021-1564 6.5 MEDIUM Cisco Video Surveillance 7000 Series IP Cameras Cisco Discovery and Link Layer Discovery P
CVE-2021-1563 6.5 MEDIUM Cisco Video Surveillance 7000 Series IP Cameras Cisco Discovery and Link Layer Discovery P
CVE-2021-1537 6.2 MEDIUM Cisco ThousandEyes Recorder Information Disclosure Vulnerability
CVE-2021-1544 5.5 MEDIUM Cisco Webex Meetings Client Software Logging Information Disclosure Vulnerability
CVE-2021-1527 5.3 MEDIUM Cisco Webex Player Memory Corruption Vulnerability
CVE-2021-1517 5.0 MEDIUM Cisco Webex Meetings and Webex Meetings Server Multimedia Sharing Security Bypass Vulnerab
CVE-2021-1536 4.8 MEDIUM Cisco Webex Meetings, Webex Network Recording Player, and Webex Teams DLL Injection Vulner
CVE-2021-1538 4.7 MEDIUM Cisco Common Services Platform Collector Command Injection Vulnerability

IV. Related Vulnerabilities

Same product: Cisco WebEx Meetings Server
Same vendor: Cisco
Same weakness: CWE-601

V. Comments for CVE-2021-1525

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