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CVE-2017-9822 KEVRansomwarePublic exploit High · 8.8 EPSS 94.8%

DotNetNuke (DNN) Remote Code Execution Vulnerability

DotNetNuke (DNN) · DotNetNuke (DNN)

Summary

DotNetNuke (DNN) versions before 9.1.1 contain a flaw in how the platform handles cookie input, which can lead to improper control of code generation and improper input validation. An attacker with network access and low-privilege authenticated access to the application can exploit this without any user interaction to achieve remote code execution.

Official 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."

Breakdown
79.1 / 100
Exploited
Yes, in CISA KEV
Reports
0
Tactics
3/15

How an attack unfolds

Based on mappings. Select a step to see the evidence.
  1. How attackers get in

  2. What they do

  3. What can follow

First seen exploited 4 years after disclosure. Public exploit code (Metasploit) was available the same day.

  1. DisclosedPublic exploit codeMetasploitday 0
  2. First seen exploitedVulnCheck KEV evidence+4 yrs
  3. Added to CISA KEVknown ransomware use; EU database agrees+4 yrs

CISA KEV listing is when exploitation was confirmed, not necessarily the first attack.

7 fixes in DotNetNuke.Core over 4 years. The latest fix listed for DotNetNuke.Core is 9.2.2.

Fixes in DotNetNuke.CoreNuGet package, by fixed version. Earlier and later fixes in the same package, not necessarily the same bug.

  1. 7.4.0CVE-2015-15669 Feb 2015
  2. 7.4.1CVE-2015-27946 Feb 2017
  3. 8.0.1CVE-2016-711931 Aug 2016
  4. 9.1.1CVE-2017-982220 Jul 2017KEV
  5. 9.2.0CVE-2017-09293 Jul 2018
  6. 9.2.2CVE-2018-158113 Jul 2019KEV
  7. 9.2.2CVE-2018-158123 Jul 2019Latest listed

techniques

3 , grouped by in kill-chain order 3

Initial AccessTA0001

Exploit Public-Facing Application T1190 Medium
MITRE CTID mapping of the KEV entry · how it is exploited

CVE-2017-9822 is a vulnerability allows an attacker to exploit cookie deserialization, leading to remote code execution (RCE). It has been noted for its potential impact on various web applications

ExecutionTA0002

Command and Scripting Interpreter T1059 Medium
MITRE CTID mapping of the KEV entry · primary impact

ImpactTA0040

Resource Hijacking T1496 Medium
MITRE CTID mapping of the KEV entry · follow-on activity

Detection

0 rules for this CVE · 257 general rules for its techniques

Rules for this CVE

0 that reference CVE-2017-9822 directly.

CVE-specific rules are not available in this build. Search SigmaHQ ↗

General rules for this CVE’s techniques

These detect the technique in general, not this specific vulnerability.

Sigma rules © SigmaHQ, Detection Rule License 1.1; linked, not reproduced.

Am I affected? What do I upgrade to?

From GitHub Security Advisories and OSV

1 package in 1 ecosystem. Main package: DotNetNuke.Core.

NuGetDotNetNuke.CoreGHSA-x2rg-fmcv-crq5

Upgrade to 9.3.0 or later

Fixes this CVE and 5 other known vulnerabilities in this package (CVE-2015-2794, CVE-2017-0929, +3).

Set the version to 9.3.0 or later in your .csproj.

First fixed in 9.1.1 for CVE-2017-9822.

Affected versions

If you runUpgrade to
All versions before 9.1.19.3.0first fix for this CVE: 9.1.1

“Up to” means the second version is the fix and is not affected.

Check your lockfile against all CVEs

What security researchers reported

Not named in any threat report yet

Also mentioned in 50 community threat pulses (AlienVault OTX)

Weaker evidence

Pulses are indicator collections that anyone can publish. A mention is not confirmation of exploitation.

References

4 links, grouped by NVD tag (3 duplicates merged)
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