Versioned security assessment

Report ID: SA-E19BFAEA

6/30/2026, 4:20:32 PM

m365-agents-dotnet security assessment v2

Skill Security Certification Report

Audit History
Audit model: codex Historical report
Skill name
m365-agents-dotnet
Version
v2
Maintainer
sickn33
Coverage
1 Files scanned · 291 Lines analyzed
Policy version
Unavailable

Highest confirmed finding severity

Medium

1 confirmed security finding requires attention.

Installation context

Historical evidence

This report may not describe the currently installable artifact. Open the current Skill page for install guidance.

Open current Skill page

This report does not block or authorize the manifest or ZIP.

Static command, filesystem, network, and weak-crypto findings were reviewed in context. The command and network matches are Markdown examples and official Microsoft endpoints, while the weak-crypto and hidden-file matches are false positives; however, the sample error handler can expose exception messages to users if copied directly.

Report position

Historical report

Open audit history before using this report to install.

Audit attestation

Not attestable

The required immutable binding is incomplete.

Human verification

Not verified

No human verification is recorded for this report.

Coverage

1 Files scanned · 291 Lines analyzed

4 items shown for review

Limitations

This report does not claim runtime or sandbox execution and does not prove the absence of side effects.

Evidence chain

Follow the evidence from source binding to the install contract. Available evidence supports verification; it is not a safety guarantee.

  1. Source

    Binding unavailable

  2. Artifact

    Identity incomplete

  3. Audit

    Complete

  4. Install contract

    Open manifest to verify

    Open manifest

Capabilities observed

Observed means this report recorded supporting evidence. Not recorded does not prove that a capability is absent.

Contains scripts

May execute code included with the Skill.

Not recorded by this audit

Network access

May connect to external services.

Observed in 10 evidence locations

Filesystem access

May read or write local files.

Observed in 1 evidence location

Env variables

May read values from the process environment.

Not recorded by this audit

External commands

May invoke commands or programs outside the Skill.

Observed in 11 evidence locations

Capability review items (3)
Low
Static Command Findings Are Fenced Examples
The detected dotnet and C# blocks are Markdown examples for installing packages and building sample agents. They are not executable scripts in the skill package and do not show command injection behavior.
The flagged content is inside Markdown code fences and no runnable helper script exists in the scanned file. The commands use fixed package names rather than user-controlled input.
Low
Network URLs Are Expected Microsoft References
The detected URLs point to Microsoft identity, Bot Framework, localhost development, Microsoft Learn, and the Microsoft agents GitHub repository. No evidence found of data exfiltration or unrelated external endpoints.
The URLs are visible, vendor-relevant, and match the stated Microsoft 365 Agents purpose. I did not find hidden callback URLs or suspicious domains.
Low
Development Endpoint Requires Deployment Care
The sample only requires authorization outside development mode and binds a local development URL. This is reasonable for local testing, but users must keep authorization enabled for deployed agents.
The condition clearly separates development and non-development behavior. The risk depends on how users adapt the sample for production.

Risk findings

Confirmed security concerns are separated from items that still need review.

Confirmed security concerns (1)

RISK-001 Medium
Sample Error Handler Exposes Exception Messages
The agent sample sends exception.Message back in an end-of-conversation activity. If copied into production, this can disclose internal implementation details or sensitive error text to chat users.
The code explicitly assigns exception.Message to outbound activity text. This is a real disclosure risk in copied sample code, although the skill itself is documentation.

Expert evidence

Immutable subject identity, scanner metadata, dismissed matches, and source-level evidence.

Artifact subject

Marketplace commit
Unavailable
Content hash
Unavailable
Tree hash
Unavailable
Skill path
Unavailable
Audit payload hash
Unavailable

Analysis metadata

Audit model: codex

Analysis state: Complete

Scope is limited to the recorded files, lines, methods, and evidence. No runtime or sandbox execution is claimed.

Static false positives ignored (1)
Low
Weak-Crypto and Hidden-File Matches Are False Positives
The weak-crypto matches are text-pattern collisions in descriptive or enum-related content, and the hidden-file match is the OAuth scope suffix .default. No evidence found of DES, MD5, SHA1, or hidden file access.
The reviewed lines do not contain cryptographic algorithm calls or file operations. They contain frontmatter text, an OAuth scope string, and EndOfConversationCodes.Error.

Verify and export

The manifest and lockfile bind install artifacts to cryptographic hashes. This integrity claim is separate from the security assessment.

Audit attestation: not_attestable