CVE-2023-4107: Github.com/mattermost/mattermost server/v6 Mattermost Does Not Validate Requesting Vulnerability
MODERATECVE-2023-4107 is a MODERATE (CVSS 6.7) mattermost does not validate requesting vulnerability (CWE-284: Improper Access Control) affecting Github.com/mattermost/mattermost server/v6 libraries in the Go ecosystem. The issue involves mattermost does not validate requesting user permissions before updating admin details. Remediation is available by upgrading affected packages to version 7.8.8, 7.9.6, 7.10.4.
CVE-2023-4107 at a Glance
Security Impact
CVSS: 6.7
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L).
How to Fix CVE-2023-4107
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 7.8.8Upgrade github.com/mattermost/mattermost-server/v6 to 7.9.6Upgrade github.com/mattermost/mattermost-server/v6 to 7.10.4Run 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-2023-4107, 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 7.8.8), 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-2023-4107 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 |
< 7.8.8
|
7.8.8
|
|
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
|
References
Frequently Asked Questions
What is CVE-2023-4107?
Which Github.com/mattermost/mattermost server/v6 versions are affected?
What version fixes CVE-2023-4107?
Is github.com/mattermost/mattermost-server/v6 affected?
What is the CVSS score of CVE-2023-4107?
What CWE is associated with CVE-2023-4107?
How can I check Go dependencies for CVE-2023-4107?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-6xjj-v76v-fwpj",
"modified" : "2023-08-11T21:56:52Z",
"published" : "2023-08-11T09:30:36Z",
"aliases" : [ "CVE-2023-4107" ],
"summary" : "Mattermost does not validate requesting user permissions before updating admin details",
"details" : "Mattermost fails to properly validate the requesting user permissions when updating a system admin, allowing a user manager to update a system admin's details such as email, first name and last name.\n\n",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L"
} ],
"affected" : [ {
"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"
}
}, {
"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"
}
} ],
"references" : [ {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-4107"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/mattermost/mattermost"
}, {
"type" : "WEB",
"url" : "https://mattermost.com/security-updates"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-284", "CWE-863" ],
"severity" : "MODERATE",
"github_reviewed" : true,
"github_reviewed_at" : "2023-08-11T21:56:52Z",
"nvd_published_at" : "2023-08-11T07:15:09Z"
}
}