CVE-2019-9874: Sitecore CMS and Experience Platform (XP) Deserialization Vulnerability
In CISA’s Known Exploited Vulnerabilities catalog: Sitecore CMS and Experience Platform (XP) Deserialization Vulnerability.
Added , federal remediation due . Known ransomware use: Unknown.
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Description
Deserialization of Untrusted Data in the Sitecore.Security.AntiCSRF (aka anti CSRF) module in Sitecore CMS 7.0 to 7.2 and Sitecore XP 7.5 to 8.2 allows an unauthenticated attacker to execute arbitrary code by sending a serialized .NET object in the HTTP POST parameter __CSRFTOKEN.
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
Sitecore: CMS and Experience Platform (XP)
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- dev.sitecore.net/Downloads.aspx (opens in new tab)
- www.synacktiv.com/blog.html (opens in new tab)
- www.synacktiv.com/ressources/advisories/Sitecore_CSRF_deserialize_RCE.pdf (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)