Is CVE-2017-9822 exploited in the wild?

Yes. CVE-2017-9822 is known to be exploited in the wild, first recorded on 3 November 2021. Treat it as urgent.

How severe is CVE-2017-9822?

Critical severity, with a CVSS score of 3.1, published 16 October 2018.

Which products and versions are affected?

DotNetNuke.Core (NuGet) ECOSYSTEM:introduced=0,fixed=9.1.1.

Is there a fix for CVE-2017-9822?

Yes. DotNetNuke.Core (NuGet): upgrade to 9.1.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2017-9822 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2017-9822?

Check whether you run Dotnetnuke (Dnn) or DotNetNuke.Core (NuGet) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2017-9822: DNN (aka DotNetNuke) has Remote Code Execution via a cookie

CVE-2017-9822 · Severity: critical · CVSS 3.1 · Exploited in the wild · Published 2018-10-16

DotNetNuke (DNN) versions prior to 9.1.1 are vulnerable to remote code execution via insecure deserialization of data within a cookie. An attacker can exploit this to execute arbitrary code on the server.

Technologies: Dotnetnuke (Dnn), DotNetNuke.Core (NuGet). Vendors: Dotnetnuke (Dnn), NuGet.

Quick answers

Is CVE-2017-9822 exploited in the wild?: Yes. CVE-2017-9822 is known to be exploited in the wild, first recorded on 3 November 2021. Treat it as urgent.
How severe is CVE-2017-9822?: Critical severity, with a CVSS score of 3.1, published 16 October 2018.
Which products and versions are affected?: DotNetNuke.Core (NuGet) ECOSYSTEM:introduced=0,fixed=9.1.1.
Is there a fix for CVE-2017-9822?: Yes. DotNetNuke.Core (NuGet): upgrade to 9.1.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2017-9822 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2017-9822?: Check whether you run Dotnetnuke (Dnn) or DotNetNuke.Core (NuGet) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

DotNetNuke.Core (NuGet): upgrade to 9.1.1 or later

dotnet add package DotNetNuke.Core --version 9.1.1

Affected products

DNN Software DotNetNuke (DNN) before 9.1.1

Identifiers

CVE-2017-9822
GHSA-x2rg-fmcv-crq5

Timeline

2017-07-21: disclosed: Initial vendor advisory/description update
2017-07-25: other: Initial NIST analysis completed
2021-11-03: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
2022-05-03: other: Due date for remediation per CISA BOD 22-01

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