{"id":"CVE-2020-3126","published":"2020-04-13T16:40:12Z","modified":"2024-11-15T17:32:29Z","title":"Cisco Webex Meetings Multimedia Viewer Vulnerability","vendor":"Cisco","product":"Cisco Webex Meetings Multimedia Viewer","tier":"core","eol":null,"affectedVersions":[{"vendor":"Cisco","product":"Cisco Webex Meetings Multimedia Viewer","versions":["T39.3"]}],"description":{"text":"vulnerability within the Multimedia Viewer feature of Cisco Webex Meetings could allow an authenticated, remote attacker to bypass security protections. The vulnerability is due to missing security warning dialog boxes when a room host views shared multimedia files. An authenticated, remote attacker could exploit this vulnerability by using the host role to share files within the Multimedia sharing feature and convincing a former room host to view that file. A warning dialog normally appears cautioning users before the file is displayed; however, the former host would not see that warning dialog, and any shared multimedia would be rendered within the user's browser. The attacker could leverage this behavior to conduct additional attacks by including malicious files within a targeted room host's browser window.","provenance":"source","from":"CVE.org"},"summary":null,"cvss":{"score":3,"severity":"LOW","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:L/A:N","provenance":"source","from":"CVE.org CNA"},"epss":{"score":0.00863,"percentile":0.5851,"date":"2026-10-29","provenance":"source"},"kev":null,"vulncheckKev":null,"exploited":false,"otx":{"pulseCount":0,"pulses":[],"provenance":"machine"},"cwes":[{"id":"CWE-284","name":"Improper Access Control"}],"references":[{"url":"https://quickview.cloudapps.cisco.com/quickview/bug/CSCvs24436","tags":["vendor-advisory","x_refsource_CISCO"]}],"techniques":[{"id":"T1190","name":"Exploit Public-Facing Application","tactics":["initial-access"],"provenance":"source","basis":"ctid-cve","bases":["ctid-cve"],"basisDetail":"CTID attack_to_cve (Phase 2)","mappingType":"exploitation_technique","evidence":[],"confidence":"low","confidenceNote":"needs user interaction; not a public-facing exploit"},{"id":"T1080","name":"Taint Shared Content","tactics":["lateral-movement"],"provenance":"source","basis":"ctid-cve","bases":["ctid-cve"],"basisDetail":"CTID attack_to_cve (Phase 2)","mappingType":"primary_impact","evidence":[],"confidence":"high"},{"id":"T1204.002","name":"Malicious File","tactics":["execution"],"provenance":"source","basis":"ctid-cve","bases":["ctid-cve"],"basisDetail":"CTID attack_to_cve (Phase 2)","mappingType":"primary_impact","evidence":[],"confidence":"high"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2020-24397","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2020-24397","exploited":false,"exploitedSince":null,"provenance":"source"},"exploits":[],"exploitSources":null,"exploitRefs":[],"flow":[{"stage":"primary","techniques":["T1204.002","T1080"],"provenance":"source"},{"stage":"related","techniques":["T1190"],"provenance":"source","lowConfidence":true}],"timeline":[{"date":"2020-04-13","kind":"published","label":"Published (CVE.org)","url":"https://www.cve.org/CVERecord?id=CVE-2020-3126","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":null,"daysToKev":null},"priority":{"score":13.8,"factors":[{"name":"In a KEV catalog","points":0.0,"detail":"not listed"},{"name":"Recent KEV listing","points":0.0,"detail":"not listed"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":11.7,"detail":"percentile 0.5851"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":0.0,"detail":"none found"},{"name":"Mentioned in OTX pulses","points":0.0,"detail":"0 pulses"},{"name":"CVSS severity","points":2.1,"detail":"base score 3"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}