CVE-2023-4106: Github.com/mattermost/mattermost server/v6 Mattermost Fails To Check If Vulnerability
MODERATECVE-2023-4106 is a MODERATE (CVSS 6.3) mattermost fails to check if vulnerability (CWE-284: Improper Access Control) affecting Github.com/mattermost/mattermost server/v6 libraries in the Go ecosystem. The issue involves mattermost fails to check if user is a guest before performing actions on public playbooks. Remediation is available by upgrading affected packages to version 7.9.6, 7.10.4, 7.8.8.
CVE-2023-4106 at a Glance
Security Impact
CVSS: 6.3
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L).
How to Fix CVE-2023-4106
To remediate this vulnerability, upgrade all affected Github.com/mattermost/mattermost server/v6 dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
Upgrade github.com/mattermost/mattermost-server/v6 to 7.9.6Upgrade github.com/mattermost/mattermost-server/v6 to 7.10.4Upgrade github.com/mattermost/mattermost-server/v6 to 7.8.8Run the following command in your project directory to verify that all resolved dependencies use the patched release:
inspect dependencies for github.com/mattermost/mattermost-server/v6How to Check if You Are Affected
To determine whether your application is affected by CVE-2023-4106, inspect your project dependencies for Github.com/mattermost/mattermost server/v6:
inspect dependencies for github.com/mattermost/mattermost-server/v6Analyze the terminal output to locate any version of Github.com/mattermost/mattermost server/v6 in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 7.9.6), your application is affected.
Note: Verify declared build manifests and deployed runtime container environments.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-284: Improper Access Control, where the product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. In Github.com/mattermost/mattermost server/v6, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2023-4106 Affected Github.com/mattermost/mattermost server/v6 Versions
3 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
github.com/mattermost/mattermost-server/v6
|
Go |
≥ 7.9.0
< 7.9.6
|
7.9.6
|
|
github.com/mattermost/mattermost-server/v6
|
Go |
≥ 7.10.0
< 7.10.4
|
7.10.4
|
|
github.com/mattermost/mattermost-server/v6
|
Go |
< 7.8.8
|
7.8.8
|
References
Frequently Asked Questions
What is CVE-2023-4106?
Which Github.com/mattermost/mattermost server/v6 versions are affected?
What version fixes CVE-2023-4106?
Is github.com/mattermost/mattermost-server/v6 affected?
What is the CVSS score of CVE-2023-4106?
What CWE is associated with CVE-2023-4106?
How can I check Go dependencies for CVE-2023-4106?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-p267-jjfq-pphf",
"modified" : "2023-08-16T12:56:34Z",
"published" : "2023-08-11T09:30:36Z",
"aliases" : [ "CVE-2023-4106" ],
"summary" : "Mattermost fails to check if user is a guest before performing actions on public playbooks",
"details" : "Mattermost fails to check if the requesting user is a guest before performing different actions to public playbooks, resulting a guest being able to view, join, edit, export and archive public playbooks.\n\n",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Go",
"name" : "github.com/mattermost/mattermost-server/v6"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "7.9.0"
}, {
"fixed" : "7.9.6"
} ]
} ],
"database_specific" : {
"last_known_affected_version_range" : "<= 7.9.5"
}
}, {
"package" : {
"ecosystem" : "Go",
"name" : "github.com/mattermost/mattermost-server/v6"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "7.10.0"
}, {
"fixed" : "7.10.4"
} ]
} ],
"database_specific" : {
"last_known_affected_version_range" : "<= 7.10.3"
}
}, {
"package" : {
"ecosystem" : "Go",
"name" : "github.com/mattermost/mattermost-server/v6"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "7.8.8"
} ]
} ],
"database_specific" : {
"last_known_affected_version_range" : "<= 7.8.7"
}
} ],
"references" : [ {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-4106"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/mattermost/mattermost"
}, {
"type" : "WEB",
"url" : "https://mattermost.com/security-updates"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-284", "CWE-862" ],
"severity" : "MODERATE",
"github_reviewed" : true,
"github_reviewed_at" : "2023-08-11T21:49:05Z",
"nvd_published_at" : "2023-08-11T07:15:09Z"
}
}