CVE-2019-9874

EUVD-2019-19230
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA-ADPADP
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 99%
Affected Products (NVD)
VendorProductVersion
sitecorecms
7.0 ≤
𝑥
≤ 7.2
sitecoreexperience_platform
7.5 ≤
𝑥
≤ 8.2
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://dev.sitecore.net/Downloads.aspx
https://www.synacktiv.com/blog.html
https://www.synacktiv.com/ressources/advisories/Sitecore_CSRF_deserialize_RCE.pdf
https://dev.sitecore.net/Downloads.aspx
https://www.synacktiv.com/blog.html
https://www.synacktiv.com/ressources/advisories/Sitecore_CSRF_deserialize_RCE.pdf
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-9874