PT-2023-21667 · Rocket.Chat · Rocket.Chat

Gronke · Published 2023-05-11 · Updated 2023-05-22 · CVE-2023-28357

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Rocket.Chat (affected versions not specified)

Description A vulnerability has been identified in Rocket.Chat, where the ACL checks in the Slash Command "/mute" occur after checking whether a user is a member of a given channel, leaking private channel members to unauthorized users. This allows authenticated users to enumerate whether a username is a member of a channel that they do not have access to.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Information Disclosure

Incorrect Authorization

Weakness Enumeration

CWE-200

CWE-863

Related Identifiers

CVE-2023-28357

Affected Products

Rocket.Chat

References · 6

• https://osv.dev/vulnerability/CVE-2023-28357 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-28357 · Security Note
• https://hackerone.com/reports/1445810 · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-28357 · Note
• https://t.me/cibsecurity/63934 · Telegram Post
• https://t.me/cvenotify/50285 · Telegram Post