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GO-2024-3090 BIT-mattermost-2024-40884 CVE-2024-40884 GHSA-3j95-8g47-fpwh

Mattermost allows team admin user without "Add Team Members" permission to disable invite URL in github.com/mattermost/mattermost-server

Low Go
Severity
0.0 / 10
Low · CVSS 4.0
Exploit chance (EPSS)
0.39%
Chance of exploitation in the next 30 days. Higher than 33.17% of scored vulnerabilities.
Known exploited
No
Not in CISA's catalog
Weakness
CWE-284 Improper Access Control
Fix
Available
2 packages have a fixed version

Description

Mattermost allows team admin user without "Add Team Members" permission to disable invite URL in github.com/mattermost/mattermost-server

Affected versions

Go

PackageVulnerableFixed in
github.com/mattermost/mattermost-server
>= 9.5.0+incompatible, < 9.5.8+incompatible
>= 9.10.0+incompatible, < 9.10.1+incompatible
9.5.8+incompatible
9.10.1+incompatible
github.com/mattermost/mattermost-server/v5
all versions
No fix yet
github.com/mattermost/mattermost-server/v6
all versions
No fix yet
github.com/mattermost/mattermost/server/v8
>= 9.5.0, < 9.5.8
9.5.8
github.com/mattermost/mattermost/server/v8
>= 9.10.0, < 9.10.1
9.10.1
github.com/mattermost/mattermost/server/v8
all versions
No fix yet

How to fix

Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.

github.com/mattermost/mattermost-server Go → 9.10.1+incompatible

go
go get github.com/mattermost/mattermost-server@v9.10.1+incompatible && go mod tidy

github.com/mattermost/mattermost/server/v8 Go → 9.5.8

go
go get github.com/mattermost/mattermost/server/v8@v9.5.8 && go mod tidy

Severity breakdown

CVSS 4.0 0.0

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Attack vector
Network
Attack complexity
Low
Attack requirements
None
Privileges required
High
User interaction
None
Confidentiality (vulnerable system)
None
Integrity (vulnerable system)
None
Availability (vulnerable system)
Low
Confidentiality (subsequent systems)
None
Integrity (subsequent systems)
None
Availability (subsequent systems)
None

CVSS 3.1 2.7

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

Attack vector
Network
Attack complexity
Low
Privileges required
High
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

Weakness

CWE-284: Improper Access Control

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

How to prevent it
  • Architecture and Design, Operation: Very carefully manage the setting, management, and handling of privileges. Explicitly manage trust zones in the software.
  • Architecture and Design: Compartmentalize the system to have "safe" areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area. Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.

References

Timeline

  1. Published
  2. Last updated by the source
  3. Latest EPSS score
AdvisorySeverityWhy it's related
GHSA-xmfh-3ccg-c9fx
Mattermost has an Incorrect Authorization issue
Low Also affects github.com/mattermost/mattermost-server
GHSA-h998-hxxj-8q83
Mattermost doesn't invalidate cached authentication state for active WebSocket connections during global session revocation
Medium Also affects github.com/mattermost/mattermost-server
GHSA-g5vr-6pgg-74qv
Mattermost doesn't enforce bot-specific permission checks on the user active status endpoint
Low Also affects github.com/mattermost/mattermost-server
GHSA-jqgv-39mg-7c2r
Mattermost doesn't authenticate Atlassian Connect installed callbacks, allowing a remote unauthenticated attacker to inject a rogue sharedSecret
Medium Also affects github.com/mattermost/mattermost-server
GHSA-mxq2-5jpg-7474
Mattermost doesn't validate channel ownership of an existing subscription before applying edits
Medium Also affects github.com/mattermost/mattermost-server
GHSA-2g8v-grq3-hq2g
Mattermost doesn't enforce administrator authorization on the {{setDefaultInstance}} call within the {{/gitlab connect}} command handler
Medium Also affects github.com/mattermost/mattermost-server
GHSA-6hxm-w4hv-vgvw
Mattermost doesn't require role-management authorization when setting the scheme_admin flag on group syncable link and patch endpoints
High Also affects github.com/mattermost/mattermost-server
GHSA-9p44-r552-4wp9
Mattermost doesn't sanitize the Remote Cluster API response on PATCH operations
Medium Also affects github.com/mattermost/mattermost-server
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