// For flags

CVE-2018-1000073

rubygems: Path traversal when writing to a symlinked basedir outside of the root

Severity Score

7.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

RubyGems version Ruby 2.2 series: 2.2.9 and earlier, Ruby 2.3 series: 2.3.6 and earlier, Ruby 2.4 series: 2.4.3 and earlier, Ruby 2.5 series: 2.5.0 and earlier, prior to trunk revision 62422 contains a Directory Traversal vulnerability in install_location function of package.rb that can result in path traversal when writing to a symlinked basedir outside of the root. This vulnerability appears to have been fixed in 2.7.6.

Las versiones de RubyGems de la serie Ruby 2.2: 2.2.9 y anteriores, de la serie Ruby 2.3: 2.3.6 y anteriores, de la serie Ruby 2.4: 2.4.3 y anteriores, y de la serie Ruby 2.5: 2.5.0 y anteriores, anteriores a la revisión del trunk 62422 contiene una vulnerabilidad de salto de directorio en la función install_location de package.rb que puede resultar en un salto de directorio al escribir en un basedir vinculado simbólicamente fuera del root. La vulnerabilidad parece haber sido solucionada en la versión 2.7.6.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2018-02-21 CVE Reserved
  • 2018-03-13 CVE Published
  • 2023-07-08 EPSS Updated
  • 2024-08-05 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
  • CWE-59: Improper Link Resolution Before File Access ('Link Following')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Rubygems
Search vendor "Rubygems"
 Rubygems
Search vendor "Rubygems" for product "Rubygems"
 <= 2.2.9
Search vendor "Rubygems" for product "Rubygems" and version " <= 2.2.9"
-
Affected
Rubygems
Search vendor "Rubygems"
 Rubygems
Search vendor "Rubygems" for product "Rubygems"
 <= 2.3.6
Search vendor "Rubygems" for product "Rubygems" and version " <= 2.3.6"
-
Affected
Rubygems
Search vendor "Rubygems"
 Rubygems
Search vendor "Rubygems" for product "Rubygems"
 <= 2.4.3
Search vendor "Rubygems" for product "Rubygems" and version " <= 2.4.3"
-
Affected
Rubygems
Search vendor "Rubygems"
 Rubygems
Search vendor "Rubygems" for product "Rubygems"
 <= 2.5.0
Search vendor "Rubygems" for product "Rubygems" and version " <= 2.5.0"
-
Affected