CVE-2017-9822
Published: November 3, 2021
Official Description
DotNetNuke (DNN) contains a vulnerability that may allow for remote code execution via cookie deserialization.
CISA KEV Advisory
DotNetNuke (DNN) Remote Code Execution Vulnerability
DotNetNuke (DNN) contains a vulnerability that may allow for remote code execution via cookie deserialization.
Apply updates per vendor instructions.
Risk Analysis
DotNetNuke (DNN) contains a vulnerability that may allow for remote code execution through cookie deserialization. The high EPSS score of 0.94293 indicates a very high likelihood of exploitation, making this an urgent security concern.
This vulnerability is actively exploited in the wild and is included in CISA's KEV catalog. It is remotely exploitable.
Consult DNN vendor advisories for patches and updates to address this deserialization vulnerability. Implement secure coding practices to prevent insecure deserialization.
Technical Analysis
CVE-2017-9822 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2017-9822 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Exploit & PoC Resources
All References (1)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2017-9822 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1