cbcvebase.
CVE-2019-1113
published 2019-07-15

CVE-2019-1113: A remote code execution vulnerability exists in .NET software when the software fails to check the source markup of a file.An attacker who successfully…

PriorityP356high8.8CVSS 3.0
AVNACLPRNUIRSUCHIHAH
EPSS
10.00%
95.1th percentile
A remote code execution vulnerability exists in .NET software when the software fails to check the source markup of a file.An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user, aka '.NET Framework Remote Code Execution Vulnerability'.

Affected

117 ranges· showing 25
VendorProductVersion rangeFixed in
microsoftmicrosoft_net_framework_2.0
microsoftmicrosoft_net_framework_2.0
microsoftmicrosoft_net_framework_2.0
microsoftmicrosoft_net_framework_3.0
microsoftmicrosoft_net_framework_3.0
microsoftmicrosoft_net_framework_3.0
microsoftmicrosoft_net_framework_3.5
microsoftmicrosoft_net_framework_3.5
microsoftmicrosoft_net_framework_3.5
microsoftmicrosoft_net_framework_3.5
microsoftmicrosoft_net_framework_3.5
microsoftmicrosoft_net_framework_3.5
microsoftmicrosoft_net_framework_3.5
microsoftmicrosoft_net_framework_3.5
microsoftmicrosoft_net_framework_3.5
microsoftmicrosoft_net_framework_3.5
microsoftmicrosoft_net_framework_3.5
microsoftmicrosoft_net_framework_3.5
microsoftmicrosoft_net_framework_3.5
microsoftmicrosoft_net_framework_3.5
microsoftmicrosoft_net_framework_3.5
microsoftmicrosoft_net_framework_3.5
microsoftmicrosoft_net_framework_3.5
microsoftmicrosoft_net_framework_3.5
microsoftmicrosoft_net_framework_3.5

Detection & IOCsextracted from sources · hover to see the quote

  • Exploitation requires a user to open a specially crafted file with an affected version of .NET Framework; monitor for unexpected file opens triggering .NET Framework processing of markup files
  • Email-based delivery vector: attacker sends a specially crafted file as an attachment; monitor email gateways and endpoint mail clients for suspicious .NET-related file attachments
  • Root cause is failure to check source markup of a file in .NET Framework; focus detection on anomalous XAML/markup parsing activity within .NET Framework processes
  • ·Microsoft assessed exploitation as 'More Likely' for both latest and older software releases, indicating active exploitation risk despite no confirmed in-the-wild exploitation at time of disclosure
  • ·Windows 10 version 1809 and Windows Server 2019 require selecting the correct .NET Framework update (4.7.2 or 4.8) in addition to the 3.5 update; incorrect patch selection may leave systems vulnerable

CVSS provenance

nvdv3.08.8HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv2.06.8MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P
vendor_msrc8.8CRITICAL
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.