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CVE-2020-26163

Good to know:

Date: September 30, 2020

BigBlueButton Greenlight before 2.5.6 allows HTTP header (Host and Origin) attacks, which can result in Account Takeover if a victim follows a spoofed password-reset link.

Language: Ruby

Severity Score

8.8

Related Resources (5)

Url: https://github.com/bigbluebutton/greenlight/pull/1543

Url: https://nvd.nist.gov/vuln/detail/CVE-2020-26163

Url: https://github.com/bigbluebutton/greenlight/releases/tag/release-2.5.6

Url: https://www.sakshamanand.com/host-header-injection-bigbluebutton/

Url: https://www.mend.io/vulnerability-database/CVE-2020-26163

Severity Score

8.8

Top Fix

Upgrade Version

Upgrade to version release-2.5.6

CVSS v3.1

Base Score:	8.8
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	NONE
User Interaction (UI):	REQUIRED
Scope (S):	UNCHANGED
Confidentiality (C):	HIGH
Integrity (I):	HIGH
Availability (A):	HIGH

CVSS v2

Base Score:	6.8
Access Vector (AV):	NETWORK
Access Complexity (AC):	MEDIUM
Authentication (AU):	NONE
Confidentiality (C):	PARTIAL
Integrity (I):	PARTIAL
Availability (A):	PARTIAL
Additional information:

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