BigBlueButton is an open source web conferencing system. Versions prior to 2.4.3, are subject to Insufficient Verification of Data Authenticity, resulting in Denial of Service. An attacker can make a Meteor call to validateAuthToken using a victim's userId, meetingId, and an invalid authToken. This forces the victim to leave the conference, because the resulting verification failure is also observed and handled by the victim's client. The attacker must be a participant in any meeting on the server. This issue is patched in version 2.4.3. There are no workarounds.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-345"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/41xxx/CVE-2022-41960.json"
}{
"extracted_events": [
{
"cpe": "cpe:2.3:a:bigbluebutton:bigbluebutton:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "2.4.3"
}
],
"source": "CPE_RANGE"
},
{
"original_tag": "v2.4.3",
"range": [
{
"fixed": "e7773468fb45d86200ae28bdf8c39f4ba487cf88"
}
],
"source": "REFERENCES_TAG"
},
{
"original_tag": "v2.5-alpha-1",
"range": [
{
"fixed": "60302d3e353cea201fbd02912302d7f040f0dc27"
}
],
"source": "REFERENCES_TAG"
}
]
}