// For flags

CVE-2020-10663

rubygem-json: Unsafe object creation vulnerability in JSON

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The JSON gem through 2.2.0 for Ruby, as used in Ruby 2.4 through 2.4.9, 2.5 through 2.5.7, and 2.6 through 2.6.5, has an Unsafe Object Creation Vulnerability. This is quite similar to CVE-2013-0269, but does not rely on poor garbage-collection behavior within Ruby. Specifically, use of JSON parsing methods can lead to creation of a malicious object within the interpreter, with adverse effects that are application-dependent.

La gema JSON versiones hasta 2.2.0 para Ruby, como es usado en Ruby versiones 2.4 hasta 2.4.9, versiones 2.5 hasta 2.5.7 y versiones 2.6 hasta 2.6.5, tiene una Vulnerabilidad de Creación de Objetos No Segura. Esto es bastante similar a CVE-2013-0269, pero no se basa en un comportamiento inapropiado garbage-collection dentro de Ruby. Específicamente, el uso de métodos de análisis JSON puede conllevar a la creación de un objeto malicioso dentro del intérprete, con efectos adversos que dependen de la aplicación.

A flaw was found in rubygem-json. While parsing certain JSON documents, the json gem (including the one bundled with Ruby) can be coerced into creating arbitrary objects in the target system. This is the same issue as CVE-2013-0269.

*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
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low
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
  • 2020-03-18 CVE Reserved
  • 2020-04-28 CVE Published
  • 2024-08-04 CVE Updated
  • 2024-08-22 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-20: Improper Input Validation
  • CWE-94: Improper Control of Generation of Code ('Code Injection')
CAPEC
References (21)
URL Tag Source
http://seclists.org/fulldisclosure/2020/Dec/32 Mailing List
https://lists.apache.org/thread.html/r37c0e1807da7ff2bdd028bbe296465a6bbb99e2320dbe661d5d8b33b%40%3Cissues.zookeeper.apache.org%3E Mailing List
https://lists.apache.org/thread.html/r3b04f4e99a19613f88ae088aa18cd271231a3c79dfff8f5efa8cda61%40%3Cissues.zookeeper.apache.org%3E Mailing List
https://lists.apache.org/thread.html/r5f17bfca1d6e7f4b33ae978725b2fd62a9f1b3111696eafa9add802d%40%3Cissues.zookeeper.apache.org%3E Mailing List
https://lists.apache.org/thread.html/r8d2e174230f6d26e16c007546e804c343f1f68956f526daaafa4aaae%40%3Cdev.zookeeper.apache.org%3E Mailing List
https://lists.apache.org/thread.html/rb023d54a46da1ac0d8969097f5fecc79636b07d3b80db7b818a5c55c%40%3Cissues.zookeeper.apache.org%3E Mailing List
https://lists.apache.org/thread.html/rb2b981912446a74e14fe6076c4b7c7d8502727ea0718e6a65a9b1be5%40%3Cissues.zookeeper.apache.org%3E Mailing List
https://lists.apache.org/thread.html/rd9b9cc843f5cf5b532bdad9e87a817967efcf52b917e8c43b6df4cc7%40%3Cissues.zookeeper.apache.org%3E Mailing List
https://lists.apache.org/thread.html/rec8bb4d637b04575da41cfae49118e108e95d43bfac39b7b698ee4db%40%3Cissues.zookeeper.apache.org%3E Mailing List
https://lists.apache.org/thread.html/ree3abcd33c06ee95ab59faa1751198a1186d8941ddc2c2562c12966c%40%3Cissues.zookeeper.apache.org%3E Mailing List
https://lists.debian.org/debian-lts-announce/2020/04/msg00030.html Mailing List
https://security.netapp.com/advisory/ntap-20210129-0003 Third Party Advisory
https://support.apple.com/kb/HT211931 Third Party Advisory
URL Date SRC
URL Date SRC
URL Date SRC
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00004.html 2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7QL6MJD2BO4IRJ5CJFNMCDYMQQFT24BJ 2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F4TNVTT66VPRMX5UZYSDGSVRXKKDDDU5 2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NK2PBXWMFRUD7U7Q7LHV4KYLYID77RI4 2023-11-07
https://www.debian.org/security/2020/dsa-4721 2023-11-07
https://www.ruby-lang.org/en/news/2020/03/19/json-dos-cve-2020-10663 2023-11-07
https://access.redhat.com/security/cve/CVE-2020-10663 2022-02-21
https://bugzilla.redhat.com/show_bug.cgi?id=1827500 2022-02-21
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Json Project
Search vendor "Json Project"
 Json
Search vendor "Json Project" for product "Json"
 <= 2.2.0
Search vendor "Json Project" for product "Json" and version " <= 2.2.0"
ruby
Affected
in Ruby-lang
Search vendor "Ruby-lang"
 Ruby
Search vendor "Ruby-lang" for product "Ruby"
 >= 2.4.0 <= 2.4.9
Search vendor "Ruby-lang" for product "Ruby" and version " >= 2.4.0 <= 2.4.9"
-
Safe
Json Project
Search vendor "Json Project"
 Json
Search vendor "Json Project" for product "Json"
 <= 2.2.0
Search vendor "Json Project" for product "Json" and version " <= 2.2.0"
ruby
Affected
in Ruby-lang
Search vendor "Ruby-lang"
 Ruby
Search vendor "Ruby-lang" for product "Ruby"
 >= 2.5.0 <= 2.5.7
Search vendor "Ruby-lang" for product "Ruby" and version " >= 2.5.0 <= 2.5.7"
-
Safe
Json Project
Search vendor "Json Project"
 Json
Search vendor "Json Project" for product "Json"
 <= 2.2.0
Search vendor "Json Project" for product "Json" and version " <= 2.2.0"
ruby
Affected
in Ruby-lang
Search vendor "Ruby-lang"
 Ruby
Search vendor "Ruby-lang" for product "Ruby"
 >= 2.6.0 <= 2.6.5
Search vendor "Ruby-lang" for product "Ruby" and version " >= 2.6.0 <= 2.6.5"
-
Safe
Fedoraproject
Search vendor "Fedoraproject"
 Fedora
Search vendor "Fedoraproject" for product "Fedora"
 30
Search vendor "Fedoraproject" for product "Fedora" and version "30"
-
Affected
Fedoraproject
Search vendor "Fedoraproject"
 Fedora
Search vendor "Fedoraproject" for product "Fedora"
 31
Search vendor "Fedoraproject" for product "Fedora" and version "31"
-
Affected
Opensuse
Search vendor "Opensuse"
 Leap
Search vendor "Opensuse" for product "Leap"
 15.1
Search vendor "Opensuse" for product "Leap" and version "15.1"
-
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"
 10.0
Search vendor "Debian" for product "Debian Linux" and version "10.0"
-
Affected
Apple
Search vendor "Apple"
 Macos
Search vendor "Apple" for product "Macos"
 11.0.1
Search vendor "Apple" for product "Macos" and version "11.0.1"
-
Affected