GitHub_MCVE-2022-29236CVE-2022-29236
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:S/C:P/I:N/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
AI Score
Confidence
High
EPSS
Percentile
33.3%
BigBlueButton is an open source web conferencing system. Starting in version 2.2 and prior to versions 2.3.18 and 2.4-rc-6, an attacker can circumvent access restrictions for drawing on the whiteboard. The permission check is inadvertently skipped on the server, due to a previously introduced grace period. The attacker must be a meeting participant. The problem has been patched in versions 2.3.18 and 2.4-rc-6. There are currently no known workarounds.
Affected configurations
| Vendor | Product | Version | CPE |
|---|---|---|---|
| bigbluebutton | bigbluebutton | * | cpe:2.3:a:bigbluebutton:bigbluebutton:*:*:*:*:*:*:*:* |
| bigbluebutton | bigbluebutton | 2.4 | cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:alpha1:*:*:*:*:*:* |
| bigbluebutton | bigbluebutton | 2.4 | cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:alpha2:*:*:*:*:*:* |
| bigbluebutton | bigbluebutton | 2.4 | cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:beta1:*:*:*:*:*:* |
| bigbluebutton | bigbluebutton | 2.4 | cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:beta2:*:*:*:*:*:* |
| bigbluebutton | bigbluebutton | 2.4 | cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:beta3:*:*:*:*:*:* |
| bigbluebutton | bigbluebutton | 2.4 | cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:beta4:*:*:*:*:*:* |
| bigbluebutton | bigbluebutton | 2.4 | cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:rc1:*:*:*:*:*:* |
| bigbluebutton | bigbluebutton | 2.4 | cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:rc3:*:*:*:*:*:* |
| bigbluebutton | bigbluebutton | 2.4 | cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:rc4:*:*:*:*:*:* |
CNA Affected
[
{
"vendor": "bigbluebutton",
"product": "bigbluebutton",
"versions": [
{
"version": ">= 2.2, < 2.3.18",
"status": "affected"
},
{
"version": ">= 2.4-alpha-1, < 2.4-rc-6",
"status": "affected"
}
]
}
]References
Social References
More
Related
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:S/C:P/I:N/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
AI Score
Confidence
High
EPSS
Percentile
33.3%