CVE-2020-5188: DotNetNuke.Core DNN File Upload Vulnerability Vulnerability
MODERATECVE-2020-5188 is a MODERATE (CVSS 6.5) dnn file upload vulnerability vulnerability (CWE-434: Unrestricted Upload of File with Dangerous Type) affecting DotNetNuke.Core libraries in the NuGet ecosystem. The issue involves dnn file upload vulnerability. Remediation is available in the latest vendor maintenance releases.
CVE-2020-5188 at a Glance
Security Impact
CVSS: 6.5
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:N/I:H/A:N).
How to Fix CVE-2020-5188
To remediate this vulnerability, upgrade all affected DotNetNuke.Core 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 DotNetNuke.Core to Latest secure releaseRun the following command in your project directory to verify that all resolved dependencies use the patched release:
inspect dependencies for DotNetNuke.CoreHow to Check if You Are Affected
To determine whether your application is affected by CVE-2020-5188, inspect your project dependencies for DotNetNuke.Core:
inspect dependencies for DotNetNuke.CoreAnalyze the terminal output to locate any version of DotNetNuke.Core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), 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-434: Unrestricted Upload of File with Dangerous Type, where the product allows the upload or transfer of dangerous file types that are automatically processed within its environment. In DotNetNuke.Core, 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-2020-5188 Affected DotNetNuke.Core Versions
1 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
DotNetNuke.Core
|
NuGet |
≤ 9.4.4
|
|
References
Frequently Asked Questions
What is CVE-2020-5188?
Which DotNetNuke.Core versions are affected?
What version fixes CVE-2020-5188?
Is DotNetNuke.Core affected?
What is the CVSS score of CVE-2020-5188?
What CWE is associated with CVE-2020-5188?
How can I check NuGet dependencies for CVE-2020-5188?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-vjcm-j85r-7p68",
"modified" : "2023-08-11T18:38:31Z",
"published" : "2022-05-24T17:09:34Z",
"aliases" : [ "CVE-2020-5188" ],
"summary" : "DNN File Upload Vulnerability",
"details" : "DNN (formerly DotNetNuke) through 9.4.4 has a File upload vulnerability via bypassing client-side file extension check ",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "NuGet",
"name" : "DotNetNuke.Core"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"last_affected" : "9.4.4"
} ]
} ]
} ],
"references" : [ {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-5188"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/dnnsoftware/Dnn.Platform"
}, {
"type" : "WEB",
"url" : "https://github.com/dnnsoftware/Dnn.Platform/releases"
}, {
"type" : "WEB",
"url" : "https://medium.com/@SajjadPourali/dnn-dotnetnuke-cms-not-as-secure-as-you-think-e8516f789175"
}, {
"type" : "WEB",
"url" : "http://packetstormsecurity.com/files/156484/DotNetNuke-CMS-9.5.0-File-Extension-Check-Bypass.html"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-434" ],
"severity" : "MODERATE",
"github_reviewed" : true,
"github_reviewed_at" : "2023-07-12T21:30:08Z",
"nvd_published_at" : "2020-02-24T15:15:00Z"
}
}