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[Security] Bump handlebars from 4.5.1 to 4.7.7 #109

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[Security] Bump handlebars from 4.5.1 to 4.7.7 #109

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Bumps handlebars from 4.5.1 to 4.7.7. This update includes security fixes.

Vulnerabilities fixed

Sourced from The GitHub Security Advisory Database.

Prototype Pollution in handlebars Versions of handlebars prior to 3.0.8 or 4.5.3 are vulnerable to prototype pollution. It is possible to add or modify properties to the Object prototype through a malicious template. This may allow attackers to crash the application or execute Arbitrary Code in specific conditions.

Recommendation

Upgrade to version 3.0.8, 4.5.3 or later.

Affected versions: >= 4.0.0 < 4.5.3

Sourced from The GitHub Security Advisory Database.

Arbitrary Code Execution in handlebars Versions of handlebars prior to 3.0.8 or 4.5.2 are vulnerable to Arbitrary Code Execution. The package's lookup helper fails to properly validate templates, allowing attackers to submit templates that execute arbitrary JavaScript in the system. It can be used to run arbitrary code in a server processing Handlebars templates or on a victim's browser (effectively serving as Cross-Site Scripting).

The following template can be used to demonstrate the vulnerability:

	{{#with split as |a|}}
		{{pop (push "alert('Vulnerable Handlebars JS');")}}
		{{#with (concat (lookup join (slice 0 1)))}}
			{{#each (slice 2 3)}}
				{{#with (apply 0 a)}}
					{{.}}
				{{/with}}
			{{/each}}
		{{/with}}
	{{/with}}
{{/with}}```

Recommendation


Upgrade to version 3.0.8, 4.5.2 or later.


Affected versions: >= 4.0.0 < 4.5.2

Sourced from The Node Security Working Group.

Denial of Service Crash Node.js process from handlebars using a small and simple source

Affected versions: <4.6.0

Changelog

Sourced from handlebars's changelog.

v4.7.7 - February 15th, 2021

  • fix weird error in integration tests - eb860c0
  • fix: check prototype property access in strict-mode (#1736) - b6d3de7
  • fix: escape property names in compat mode (#1736) - f058970
  • refactor: In spec tests, use expectTemplate over equals and shouldThrow (#1683) - 77825f8
  • chore: start testing on Node.js 12 and 13 - 3789a30

(POSSIBLY) BREAKING CHANGES:

  • the changes from version 4.6.0 now also apply in when using the compile-option "strict: true". Access to prototype properties is forbidden completely by default, specific properties or methods can be allowed via runtime-options. See #1633 for details. If you are using Handlebars as documented, you should not be accessing prototype properties from your template anyway, so the changes should not be a problem for you. Only the use of undocumented features can break your build.

That is why we only bump the patch version despite mentioning breaking changes.

Commits

v4.7.6 - April 3rd, 2020

Chore/Housekeeping:

Compatibility notes:

  • Restored Node.js compatibility

Commits

v4.7.5 - April 2nd, 2020

Chore/Housekeeping:

  • Node.js version support has been changed to v6+ Reverted in 4.7.6

Compatibility notes:

  • Node.js < v6 is no longer supported Reverted in 4.7.6

Commits

v4.7.4 - April 1st, 2020

Chore/Housekeeping:

Compatibility notes:

... (truncated)

Commits

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@dependabot-preview
[Security] Bump handlebars from 4.5.1 to 4.7.7
dfea902 
Bumps [handlebars](https://github.com/wycats/handlebars.js) from 4.5.1 to 4.7.7. **This update includes security fixes.**
- [Release notes](https://github.com/wycats/handlebars.js/releases)
- [Changelog](https://github.com/handlebars-lang/handlebars.js/blob/master/release-notes.md)
- [Commits](handlebars-lang/handlebars.js@v4.5.1...v4.7.7)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
@dependabot-preview dependabot-preview bot added dependencies Pull requests that update a dependency file security Pull requests that address a security vulnerability labels Feb 22, 2021
@dependabot-preview dependabot-preview bot mentioned this pull request Feb 22, 2021
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coveralls commented Feb 22, 2021 •
edited

Pull Request Test Coverage Report for Build 330

  • 0 of 0 changed or added relevant lines in 0 files are covered.
  • No unchanged relevant lines lost coverage.
  • Overall coverage remained the same at 99.662%
Totals Coverage Status
Change from base Build 312: 0.0%
Covered Lines: 421
Relevant Lines: 421
💛 - Coveralls

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