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MitreCVE-2020-28954

HistoryNov 19, 2020 - 10:15 p.m.

CVE-2020-28954

2020-11-1922:15:13

CWE-116

mitre

web.nvd.nist.gov

bigbluebutton

api

security

cve-2020-28954

parameter sanitization

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:L/Au:N/C:N/I:P/A:N

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

AI Score

5.2

Confidence

High

EPSS

0.001

Percentile

48.9%

JSON

web/controllers/ApiController.groovy in BigBlueButton before 2.2.29 lacks certain parameter sanitization, as demonstrated by accepting control characters in a user name.

Affected configurations

Nvd

Node

bigbluebuttonbigbluebuttonRange<2.2.29

VendorProductVersionCPE
bigbluebuttonbigbluebutton*cpe:2.3:a:bigbluebutton:bigbluebutton:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
bigbluebutton	bigbluebutton	*	cpe:2.3:a:bigbluebutton:bigbluebutton::::::::

References

github.com/bigbluebutton/bigbluebutton/commit/5c911ddeec4493f40f42e2f137800ed4692004a4

github.com/bigbluebutton/bigbluebutton/commit/e59bcd0c33a6a3203c011faa8823ba2cac1e4f37

github.com/bigbluebutton/bigbluebutton/compare/v2.2.28...v2.2.29

github.com/bigbluebutton/bigbluebutton/issues/10818

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:L/Au:N/C:N/I:P/A:N

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

AI Score

5.2

Confidence

High

EPSS

0.001

Percentile

48.9%

JSON

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