Deserialization Vulnerability in Sitecore Anti CSRF Module
CVE-2019-9875

8.8HIGH

Key Information:

Vendor

Sitecore

Status
Cms
Vendor
CVE Published:
31 May 2019

Badges

👾 Exploit Exists🟣 EPSS 11%🦅 CISA Reported

What is CVE-2019-9875?

An authenticated attacker can exploit a deserialization vulnerability in the anti CSRF module of Sitecore 9.1. By sending a crafted serialized .NET object via an HTTP POST request, the attacker can execute arbitrary code, potentially compromising the security of the application. This flaw underscores the need for robust input validation and secure coding practices within the framework.

CISA has reported CVE-2019-9875

CISA provides regional cyber and physical services to support security and resilience across the United States. CISA monitor the most dangerious vulnerabilities and have identifed CVE-2019-9875 as being exploited but is not known by the CISA to be used in ransomware campaigns. This is subject to change at pace

The CISA's recommendation is: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

References

https://dev.sitecore.net/Downloads.aspx
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https://www.synacktiv.com/blog.html
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https://www.synacktiv.com/ressources/advisories/Sitecore_...
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EPSS Score

11% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 👾

    Exploit known to exist

  • 🦅

    CISA Reported

  • Vulnerability published

  • Vulnerability Reserved

.