// For flags

CVE-2018-6914

ruby: Unintentional file and directory creation with directory traversal in tempfile and tmpdir

Severity Score

7.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Directory traversal vulnerability in the Dir.mktmpdir method in the tmpdir library in Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1 might allow attackers to create arbitrary directories or files via a .. (dot dot) in the prefix argument.

Vulnerabilidad de salto de directorio en el método Dir.mktmpdir en la biblioteca tmpdir en Ruby, en versiones anteriores a la 2.2.10, versiones 2.3.x anteriores a la 2.3.7, versiones 2.4.x anteriores a la 2.4.4, versiones 2.5.x anteriores a la 2.5.1 y la versión 2.6.0-preview1, podría permitir que atacantes creen directorios o archivos arbitrarios mediante un .. (punto punto) en el argumento prefix.

It was found that the tmpdir and tempfile modules did not sanitize their file name argument. An attacker with control over the name could create temporary files and directories outside of the dedicated directory.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2018-02-12 CVE Reserved
  • 2018-03-30 CVE Published
  • 2024-07-07 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')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Ruby-lang
Search vendor "Ruby-lang"
Ruby
Search vendor "Ruby-lang" for product "Ruby"
>= 2.2.0 < 2.2.10
Search vendor "Ruby-lang" for product "Ruby" and version " >= 2.2.0 < 2.2.10"
-
Affected
Ruby-lang
Search vendor "Ruby-lang"
Ruby
Search vendor "Ruby-lang" for product "Ruby"
>= 2.3.0 < 2.3.7
Search vendor "Ruby-lang" for product "Ruby" and version " >= 2.3.0 < 2.3.7"
-
Affected
Ruby-lang
Search vendor "Ruby-lang"
Ruby
Search vendor "Ruby-lang" for product "Ruby"
>= 2.4.0 < 2.4.4
Search vendor "Ruby-lang" for product "Ruby" and version " >= 2.4.0 < 2.4.4"
-
Affected
Ruby-lang
Search vendor "Ruby-lang"
Ruby
Search vendor "Ruby-lang" for product "Ruby"
>= 2.5.0 < 2.5.1
Search vendor "Ruby-lang" for product "Ruby" and version " >= 2.5.0 < 2.5.1"
-
Affected
Ruby-lang
Search vendor "Ruby-lang"
Ruby
Search vendor "Ruby-lang" for product "Ruby"
2.6.0
Search vendor "Ruby-lang" for product "Ruby" and version "2.6.0"
preview1
Affected
Canonical
Search vendor "Canonical"
Ubuntu Linux
Search vendor "Canonical" for product "Ubuntu Linux"
14.04
Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04"
lts
Affected
Canonical
Search vendor "Canonical"
Ubuntu Linux
Search vendor "Canonical" for product "Ubuntu Linux"
16.04
Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04"
lts
Affected
Canonical
Search vendor "Canonical"
Ubuntu Linux
Search vendor "Canonical" for product "Ubuntu Linux"
17.10
Search vendor "Canonical" for product "Ubuntu Linux" and version "17.10"
-
Affected
Debian
Search vendor "Debian"
Debian Linux
Search vendor "Debian" for product "Debian Linux"
7.0
Search vendor "Debian" for product "Debian Linux" and version "7.0"
-
Affected
Debian
Search vendor "Debian"
Debian Linux
Search vendor "Debian" for product "Debian Linux"
8.0
Search vendor "Debian" for product "Debian Linux" and version "8.0"
-
Affected
Debian
Search vendor "Debian"
Debian Linux
Search vendor "Debian" for product "Debian Linux"
9.0
Search vendor "Debian" for product "Debian Linux" and version "9.0"
-
Affected
Redhat
Search vendor "Redhat"
Enterprise Linux
Search vendor "Redhat" for product "Enterprise Linux"
6.0
Search vendor "Redhat" for product "Enterprise Linux" and version "6.0"
-
Affected
Redhat
Search vendor "Redhat"
Enterprise Linux
Search vendor "Redhat" for product "Enterprise Linux"
7.0
Search vendor "Redhat" for product "Enterprise Linux" and version "7.0"
-
Affected
Redhat
Search vendor "Redhat"
Enterprise Linux
Search vendor "Redhat" for product "Enterprise Linux"
7.4
Search vendor "Redhat" for product "Enterprise Linux" and version "7.4"
-
Affected
Redhat
Search vendor "Redhat"
Enterprise Linux
Search vendor "Redhat" for product "Enterprise Linux"
7.5
Search vendor "Redhat" for product "Enterprise Linux" and version "7.5"
-
Affected
Redhat
Search vendor "Redhat"
Enterprise Linux
Search vendor "Redhat" for product "Enterprise Linux"
7.6
Search vendor "Redhat" for product "Enterprise Linux" and version "7.6"
-
Affected