VYPR

CWE-520

.NET Misconfiguration: Use of Impersonation

VariantIncomplete

Description

Allowing a .NET application to run at potentially escalated levels of access to the underlying operating and file systems can be dangerous and result in various forms of attacks.

.NET server applications can optionally execute using the identity of the user authenticated to the client. The intention of this functionality is to bypass authentication and access control checks within the .NET application code. Authentication is done by the underlying web server (Microsoft Internet Information Service IIS), which passes the authenticated token, or unauthenticated anonymous token, to the .NET application. Using the token to impersonate the client, the application then relies on the settings within the NTFS directories and files to control access. Impersonation enables the application, on the server running the .NET application, to both execute code and access resources in the context of the authenticated and authorized user.

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CVEs mapped to this weakness (5)

  • CVE-2019-25608HigMar 22, 2026
    risk 0.55cvss 8.4epss 0.00

    Iperius Backup 6.1.0 contains a privilege escalation vulnerability that allows low-privilege users to execute arbitrary programs with elevated privileges by creating backup jobs. Attackers can configure backup jobs to execute malicious batch files or programs before or after…

  • CVE-2024-46943HigSep 15, 2024
    risk 0.49cvss 7.5epss 0.01

    An issue was discovered in OpenDaylight Authentication, Authorization and Accounting (AAA) through 0.19.3. A rogue controller can join a cluster to impersonate an offline peer, even if this rogue controller does not possess the complete cluster configuration information.

  • CVE-2026-2450HigApr 14, 2026
    risk 0.48cvss epss 0.00

    .NET misconfiguration: use of impersonation vulnerability in upKeeper Solutions upKeeper Instant Privilege Access allows Hijacking a Privileged Thread of Execution.This issue affects upKeeper Instant Privilege Access: through 1.5.0.

  • CVE-2026-13444HigJul 30, 2026
    risk 0.00cvss 8.1epss 0.00

    IBM Langflow OSS 1.0.0 through 1.10.1 can allow an attacker to access another user's private vector documents by creating their own flow with matching Chroma persist_directory and collection_name values. The attacker receives exact victim content in their workflow output despite…

  • CVE-2026-13442HigJul 28, 2026
    risk 0.00cvss 7.1epss 0.00

    IBM Langflow OSS 1.0.0 through 1.10.1 can allow an attacker to reuse another user's FAISS namespace to access owner-only vector content and influence later query results. This causes cross-user information disclosure and limited integrity impact through persistent poisoning of…