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GeezerVison is showing github.com — Removed value from SecureString/PSCredential string conversion exception message by ArmaanMcleod · Pull Request #19977 · PowerShell/PowerShell

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@ArmaanMcleod

@ArmaanMcleod Armaan Mcleod (ArmaanMcleod) commented Jul 15, 2023 •
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PR Summary

Fixes #19375

Removed value from exception message when [securestring] or ConvertFrom-SecureString fails to convert string to secure string.

Also removed value when string is casted to PSCredential.

PR Context

Current behaviour

Below shows string to convert in exception message which should not be shown in-case it is sensitive data like tokens, passwords etc.

PS C:\> [securestring]"p@ssword"
InvalidArgument: Cannot convert the "p@ssword" value of type "System.String" to type "System.Security.SecureString".

PS C:\> ConvertFrom-SecureString "p@assword"
ConvertFrom-SecureString: Cannot bind parameter 'SecureString'. Cannot convert the "p@assword" value of type "System.String" to type "System.Security.SecureString".

PS C>\> [pscredential]"p@assword"
InvalidArgument: Cannot convert the "p@assword" value of type "System.String" to type "System.Management.Automation.PSCredential".

New behaviour

Removes string entirely from exception message.

PS C:\> [securestring]"p@ssword"
InvalidArgument: Cannot convert the value of type "System.String" to type "System.Security.SecureString".

PS C:\> ConvertFrom-SecureString "p@assword"
ConvertFrom-SecureString: Cannot bind parameter 'SecureString'. Cannot convert the value of type "System.String" to type "System.Security.SecureString".

[pscredential]"p@assword"
InvalidArgument: Cannot convert the value of type "System.String" to type "System.Management.Automation.PSCredential".

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      • Impact on Completions (both in the console and in editors) - one of PowerShell's most powerful features.
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      • Impact on PSScriptAnalyzer (which provides linting & formatting in the editor extensions).
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      • Impact on EditorSyntax (which provides syntax highlighting with in VSCode, GitHub, and many other editors).
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dbaileyut reacted with thumbs up emoji
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  • 👍 1 reaction
@ArmaanMcleod
Added initial code to remove value from invalid secure string cast
35f8d76
@pull-request-quantifier-deprecated pull-request-quantifier-deprecated Bot added the Extra Small label Jul 15, 2023
@ArmaanMcleod
Fix formatting
9aa09b2
@ArmaanMcleod
Armaan Mcleod (ArmaanMcleod) marked this pull request as ready for review July 15, 2023 13:24
@iSazonov

Ilya (iSazonov) commented Jul 15, 2023

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WG said about PSCredential too.

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@ArmaanMcleod
Add PSCredential support
4d8d68c
@ArmaanMcleod Armaan Mcleod (ArmaanMcleod) changed the title Removed value from secure string conversion exception message Removed value from SecureString/PSCredential string conversion exception message Jul 16, 2023
@ArmaanMcleod

Armaan Mcleod (ArmaanMcleod) commented Jul 16, 2023

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WG said about PSCredential too.

Ilya (@iSazonov) Thanks for picking up on that. I've made some changes to also not expose the string in message when casting string to PSCredential.

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iSazonov
Ilya (iSazonov) reviewed Jul 16, 2023
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Comment thread test/powershell/Modules/Microsoft.PowerShell.Security/SecureString.Tests.ps1 Resolved

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@ArmaanMcleod
Use explicit check of value in exception message
6018934
@pull-request-quantifier-deprecated

pull-request-quantifier-deprecated Bot commented Jul 17, 2023

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This PR has 28 quantified lines of changes. In general, a change size of upto 200 lines is ideal for the best PR experience!


Quantification details

Label      : Extra Small
Size       : +26 -2
Percentile : 11.2%

Total files changed: 4

Change summary by file extension:
.cs : +14 -2
.resx : +3 -0
.ps1 : +9 -0

Change counts above are quantified counts, based on the PullRequestQuantifier customizations.

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@ArmaanMcleod
Armaan Mcleod (ArmaanMcleod) requested a review from Ilya (iSazonov) July 17, 2023 10:24
iSazonov
Ilya (iSazonov) approved these changes Jul 17, 2023
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@iSazonov Ilya (iSazonov) assigned Travis Plunk (TravisEz13) Jul 17, 2023
@iSazonov Ilya (iSazonov) added the CL-General Indicates that a PR should be marked as a general cmdlet change in the Change Log label Jul 17, 2023
SeeminglyScience
Patrick Meinecke (SeeminglyScience) approved these changes Jul 17, 2023
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@SeeminglyScience Patrick Meinecke (SeeminglyScience) left a comment

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LGTM! Thanks for the contribution Armaan Mcleod (@ArmaanMcleod)! ❤️

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  • ❤️ 1 reaction
@StevenBucher98 Steven Bucher (StevenBucher98) added the PowerShell-Docs not needed The PR was reviewed and doesn't appear to require a PowerShell Docs update label Jul 17, 2023
@daxian-dbw
Dongbo Wang (daxian-dbw) merged commit d24285f into PowerShell:master Jul 17, 2023
@daxian-dbw Dongbo Wang (daxian-dbw) assigned Dongbo Wang (daxian-dbw) and unassigned Travis Plunk (TravisEz13) Jul 17, 2023
@ArmaanMcleod
Armaan Mcleod (ArmaanMcleod) deleted the fix-secure-string-value-cast branch July 17, 2023 20:43
Thatgfsj (Thatgfsj) pushed a commit to Thatgfsj-contribs/PowerShell that referenced this pull request Aug 6, 2026
@ArmaanMcleod
Remove input text from the error message resulted by SecureString a…
517df3f
…nd `PSCredential` conversion failure (PowerShell#19977)
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Reviewers

@iSazonov Ilya (iSazonov) iSazonov approved these changes
@SeeminglyScience Patrick Meinecke (SeeminglyScience) SeeminglyScience approved these changes

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@daxian-dbw Dongbo Wang (daxian-dbw)

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CL-General Indicates that a PR should be marked as a general cmdlet change in the Change Log Extra Small PowerShell-Docs not needed The PR was reviewed and doesn't appear to require a PowerShell Docs update

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PSInvalidCastException should not display the value to be cast when target type is a secure string

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6 participants

@ArmaanMcleod @iSazonov @SeeminglyScience @daxian-dbw @TravisEz13 @StevenBucher98
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