Rewterz Threat Advisory – Multiple Cisco Webex Meetings Vulnerabilities

Severity

Medium

Analysis Summary

CVE-2023-20180 CVSS:4.3

Cisco Webex Meetings is vulnerable to cross-site request forgery, caused by improper validation of user-supplied input. By persuading an authenticated user to visit a malicious Web site, a remote attacker could send a malformed HTTP request to perform arbitrary actions. An attacker could exploit this vulnerability to perform cross-site scripting attacks, Web cache poisoning, and other malicious activities.

CVE-2023-20133 CVSS:5.4

Cisco Webex Meetings is vulnerable to cross-site scripting, caused by improper validation of user-supplied input by the Webex Events (classic) programs. A remote authenticated attacker could exploit this vulnerability to inject malicious script into a Web page which would be executed in a victim’s Web browser within the security context of the hosting Web site, once the page is viewed. An attacker could use this vulnerability to steal the victim’s cookie-based authentication credentials.

Impact

• Cross-Site Scripting

Indicators Of Compromise

CVE

• CVE-2023-20180
• CVE-2023-20133

Affected Vendors

Cisco

Affected Products

• Cisco Webex Meetings

Remediation

Refer to Cisco Security Advisory for patch, upgrade or suggested workaround information.

Cisco Security Advisory