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CVE-2014-4994

Good to know:

Date: January 10, 2018

lib/gyazo/client.rb in the gyazo gem 1.0.0 for Ruby allows local users to write to arbitrary files via a symlink attack on a temporary file, related to time-based filenames.

Language: Ruby

Severity Score

5.5

Related Resources (8)

Url: http://www.vapid.dhs.org/advisories/gyazo-1.0.0.html

Url: https://github.com/gyazo/gyazo-ruby

Url: http://www.openwall.com/lists/oss-security/2014/07/07/13

Url: https://github.com/rubysec/ruby-advisory-db/blob/master/gems/gyazo/CVE-2014-4994.yml

Url: https://web.archive.org/web/20200229061943/http://www.vapid.dhs.org/advisories/gyazo-1.0.0.html

Url: http://www.openwall.com/lists/oss-security/2014/07/17/5

Url: https://nvd.nist.gov/vuln/detail/CVE-2014-4994

Url: https://www.mend.io/vulnerability-database/CVE-2014-4994

Severity Score

5.5

Weakness Type (CWE)

Improper Input Validation

CWE-20

Top Fix

Upgrade Version

Upgrade to version gyazo - 2.0.0

CVSS v3.1

Base Score:	5.5
Attack Vector (AV):	LOCAL
Attack Complexity (AC):	LOW
Privileges Required (PR):	LOW
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	HIGH
Availability (A):	NONE

CVSS v2

Base Score:	2.1
Access Vector (AV):	LOCAL
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	NONE
Integrity (I):	PARTIAL
Availability (A):	NONE
Additional information:

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