CVE-2018-18326 in the critical feed json
Insufficient Entropy in DotNetNuke
published 7y ago modified 4mo ago also GHSA-xx3h-j3cx-8qfj , EUVD-2019-0612
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 54.3%
- EPSS 54.3% chance of exploitation in 30 days, percentile 99%
- public exploits
- 2
- Metasploit and Exploit-DB
Summary
DNN (aka DotNetNuke) 9.2 through 9.2.2 incorrectly converts encryption key source values, resulting in lower than expected entropy. NOTE: this issue exists because of an incomplete fix for CVE-2018-15812.
Patch / fix
- nuget DotNetNuke.Core 9.3.0
Is CVE-2018-18326 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerTimeline
- First public exploit (Metasploit exploit/windows/http/dnn_cookie_deserialization_rce)
- Published
Exploit prediction
54.27% chance of exploitation in the next 30 days, higher than 99% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- Metasploit exploit/windows/http/dnn_cookie_deserialization_rce DotNetNuke Cookie Deserialization Remote Code Excecution metasploit exploit, excellent rank, 2017-07-20
- EDB-48336 DotNetNuke - Cookie Deserialization Remote Code Execution (Metasploit) remote, 2020-04-16
- packetstormsecurity.com http://packetstormsecurity.com/files/157080/DotNetNuke-Cookie-Deserialization-Remote-Code-Execution.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
| GitHub | 3.0 | 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| nuget | DotNetNuke.Core | <9.3.0 |
9.3.0 |
Classification
- Weakness
-
- CWE-331 Insufficient Entropy
References
-
packetstormsecurity.com
/files/157080/DotNetNuke-Cookie-Deserialization-Remote-Code-Execution.html
web, exploit, third-party-advisory, vdb-entry
-
dnnsoftware.com
/community/security/security-center
web, vendor-advisory
-
github.com
/dnnsoftware/Dnn.Platform/releases
web, release-notes
-
nvd.nist.gov
/vuln/detail/CVE-2018-18326
advisory
Sources
- CVE List CVE-2018-18326
- GitHub Advisory GHSA-xx3h-j3cx-8qfj
- NVD CVE-2018-18326
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