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CVE-2017-9822

DotNetNuke (DNN) — DotNetNuke (DNN) Remote Code Execution Vulnerability

DotNetNuke (DNN) · CWE-94 — Code injection · in CISA KEV since 2021-11-03

KEV since 2021 · listed over a yearRansomwareCISA KEVActively Exploited
91

EVRS 91 of 100 Immediate

Patch Immediately

Rank 121 of 2,960 tracked

Download PDF

Why it scores 91

Evidence available: 6 of 7 signals

Listed in the CISA KEV catalog, and associated with known ransomware campaigns.

  • CISA KEVApplied
  • RansomwareApplied
  • Vendor exploitationDid not apply
  • EPSSApplied
  • Microsoft Exploitability IndexNot applicable
  • Pre-patch disclosureNo data
  • KEV recencyDid not apply
  • CVSSApplied

The band answers “how soon”, not “how bad”. No data for: Pre-patch disclosure. Why some signals show no data

Fix

Patch or fixed version identified

CISA required action

Fixed in

  • DotNetNuke.Core9.1.1

Affected versions

  • DotNetNuke.Core (nuget)affected < 9.1.1, fixed in 9.1.1

Remediation

Apply updates per vendor instructions.

Fixed versions from NVD and GitHub. Affected packages also in GitHub Advisory GHSA-x2rg-fmcv-crq5 (CC BY 4.0).

Evidence

Each value with its source
MeasureValueSource
CVSS base scoreHow severe the flaw is in itself. It does not say how likely an attack is. 8.8 NVD
FIRST EPSSFIRST's estimate of the chance this is exploited in the next 30 days, and how that ranks against all CVEs. 0.948 (99.86th pctl) FIRST EPSS
Actively exploitedWhether a source of record has confirmed attacks using it in the wild. Confirmed CISA KEV
Ransomware campaign useWhether CISA has seen ransomware operators use it. Known CISA KEV
CISA remediation deadlineThe date US federal agencies must have fixed or mitigated it. 2022-05-03 · KEV since 2021 · listed over a year CISA KEV
Public exploit moduleA module existing is not the same as active exploitation. Public module exists Metasploit
EUVD cross-referenceENISA's record: CVSS 8.8 (v3.1), assigned by hpe. Listed ENISA EUVD

Description

NVD

DNN (aka DotNetNuke) before 9.1.1 has Remote Code Execution via a cookie, aka "2017-08 (Critical) Possible remote code execution on DNN sites."

What CISA says to do

Public module

Metasploit lists a public excellent-rank module for this CVE: DotNetNuke Cookie Deserialization Remote Code Excecution (windows/http/dnn_cookie_deserialization_rce). A module existing is not the same as active exploitation; see metasploit.com.