Access of Resource Using Incompatible Type ('Type Confusion') Affecting system.formats.nrbf package, versions [,9.0.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published13 Nov 2024
- disclosed12 Nov 2024
- creditUnknown
Introduced: 12 Nov 2024
CVE-2024-43498 (opens in a new tab)How to fix?
Upgrade System.Formats.Nrbf to version 9.0.0 or higher.
Overview
System.Formats.Nrbf is a package that exposes only one component: NrbfDecoder: a stateless, forward-only decoder class that can decode .NET Remoting Binary Format (NRBF) binary data from a stream.
Affected versions of this package are vulnerable to Access of Resource Using Incompatible Type ('Type Confusion') through the NrbfDecoder component. An attacker can execute arbitrary code by sending specially crafted requests to a vulnerable .NET web application or loading a specially crafted file into an application.
Note:
By default, .NET console apps and web apps do not reference the NrbfDecoder component.