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CVE-2017-17042

Good to know:

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Date: November 28, 2017

lib/yard/core_ext/file.rb in the server in YARD before 0.9.11 does not block relative paths with an initial ../ sequence, which allows attackers to conduct directory traversal attacks and read arbitrary files.

Language: Ruby

Severity Score

Related Resources (6)

https://github.com/lsegal/yard/commit/b0217b3e30dc53d057b1682506333335975e62b4
https://github.com/lsegal/yard
https://github.com/advisories/GHSA-gj4p-3wh3-2rmf
https://nvd.nist.gov/vuln/detail/CVE-2017-17042
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/yard/CVE-2017-17042.yml
https://www.mend.io/vulnerability-database/CVE-2017-17042

Severity Score

Weakness Type (CWE)

Path Traversal

CWE-22

Top Fix

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CVSS v3.1

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

CVSS v2

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

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