Network Security, Patch/Configuration Management, Vulnerability Management

Cisco patches command injection bug in Webex Meetings Desktop App for Windows

Cisco Systems yesterday released a security update that patches a high-severity command injection vulnerability in its Webex Meetings Desktop App for Windows.

Discovered specifically within the app's update service, the flaw results from insufficient validation of user-supplied parameters, Cisco reports in an advisory. If the bug is not properly fixed, an authenticated, local attacker could use a maliciously crafted argument to invoke the update service command and execute arbitrary commands with SYSTEM user privileges.

However, there are also conditions under which remote attacks could capitalize on the vulnerability. "...Administrators should be aware that in Active Directory deployments, the vulnerability could be exploited remotely by leveraging the operating system remote management tools," Cisco cautions.

Assigned an official CVSS score of 7.8, the bug has been remedied in version 33.6.0 of the Webex Meetings Desktop App. All previous releases are affected. When running on a Windows end-user system, Cisco Webex Productivity Tools are also affected, starting with release 32.6.0 up until version 33.0.5, which includes the fix.

Bradley Barth

As director of community content at CyberRisk Alliance, Bradley Barth develops content for SC Media online conferences and events, as well as video/multimedia projects. For nearly six years, he wrote and reported for SC Media as deputy editor and, before that, senior reporter. He was previously a program executive with the tech-focused PR firm Voxus. Past journalistic experience includes stints as business editor at Executive Technology, a staff writer at New York Sportscene and a freelance journalist covering travel and entertainment. In his spare time, Bradley also writes screenplays.

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