cisco-sa-20190220-webx-ios-file: Cisco Webex Teams for iOS Arbitrary File Upload Vulnerability
A vulnerability in the client application for iOS of Cisco Webex Teams could allow an authenticated, remote attacker to upload arbitrary files within the scope of the iOS application. The vulnerability is due to improper input validation in the client application. An attacker could exploit this vulnerability by sending a malicious file to a targeted user and persuading the user to manually open it. An exploit could allow the attacker to overwrite sensitive application files and eventually cause a denial of service (DoS) condition by foreclosing future access to the system to the targeted user.
There are no workarounds that address this vulnerability.
This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190220-webx-ios-file
Affected Software
Event History
Frequently Asked Questions
What is the severity of cisco-sa-20190220-webx-ios-file?
The severity of cisco-sa-20190220-webx-ios-file is high due to the potential for attackers to upload arbitrary files.
How do I fix cisco-sa-20190220-webx-ios-file?
To fix cisco-sa-20190220-webx-ios-file, ensure that you update the Cisco Webex Teams application to the latest version provided by Cisco.
What are the potential impacts of cisco-sa-20190220-webx-ios-file?
The potential impacts of cisco-sa-20190220-webx-ios-file include unauthorized file uploads that may compromise user data and application integrity.
Who is affected by cisco-sa-20190220-webx-ios-file?
Users of the Cisco Webex Teams client application on iOS are affected by cisco-sa-20190220-webx-ios-file.
What causes the vulnerability in cisco-sa-20190220-webx-ios-file?
The vulnerability in cisco-sa-20190220-webx-ios-file is caused by improper input validation in the client application.