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CVE-2023-42804

nvd nist
Published: Oct 30, 2023Modified: Nov 21, 2024

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5.3
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Exploitability: 3.9 / Impact: 1.4
Source: NVD

Description

BigBlueButton is an open-source virtual classroom. BigBlueButton prior to version 2.6.0-beta.1 has a path traversal vulnerability that allows an attacker with a valid starting folder path, to traverse and read other files without authentication, assuming the files have certain extensions (txt, swf, svg, png). In version 2.6.0-beta.1, input validation was added on the parameters being passed and dangerous characters are stripped. There are no known workarounds.

Affected (5)

Bigbluebutton
1 product
Bigbluebutton
Configuration A
5 vulnerable
Vulnerable SoftwareAffected Versions
Bigbluebutton
Bigbluebutton
Up to 2.5.18
Bigbluebutton
Version 2.6.0 alpha1
Bigbluebutton
Version 2.6.0 alpha2
Bigbluebutton
Version 2.6.0 alpha3
Bigbluebutton
Version 2.6.0 alpha4

Related CWEs

CWE-22
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

References (4)

Source: security-advisories@github.com
Third Party Advisory
Source: security-advisories@github.com
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

Timeline

No history available yet.