CVE-2017-0903

rubygems: Unsafe object deserialization through YAML formatted gem specifications

Severity Score

9.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

RubyGems versions between 2.0.0 and 2.6.13 are vulnerable to a possible remote code execution vulnerability. YAML deserialization of gem specifications can bypass class white lists. Specially crafted serialized objects can possibly be used to escalate to remote code execution.

Las versiones de RubyGems entre la 2.0.0 y la 2.6.13 son vulnerables a una posible vulnerabilidad de ejecución remota de código. La deserialización YAML de especificaciones de gemas puede omitir listas blancas de clases. Es posible que se utilicen objetos serializados especialmente manipulados para escalar a ejecución remota de código.

A vulnerability was found where the rubygems module was vulnerable to an unsafe YAML deserialization when inspecting a gem. Applications inspecting gem files without installing them can be tricked to execute arbitrary code in the context of the ruby interpreter.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-11-30 CVE Reserved
2017-10-11 CVE Published
2023-12-07 EPSS Updated
2024-09-17 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation
CWE-502: Deserialization of Untrusted Data

CAPEC

References (15)

URL	Tag	Source
http://www.securityfocus.com/bid/101275	Third Party Advisory
https://hackerone.com/reports/274990	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html	Mailing List

URL	Date	SRC

URL	Date	SRC
https://github.com/rubygems/rubygems/commit/510b1638ac9bba3ceb7a5d73135dafff9e5bab49	2019-10-09

URL	Date	SRC
http://blog.rubygems.org/2017/10/09/2.6.14-released.html	2019-10-09
http://blog.rubygems.org/2017/10/09/unsafe-object-deserialization-vulnerability.html	2019-10-09
https://access.redhat.com/errata/RHSA-2017:3485	2019-10-09
https://access.redhat.com/errata/RHSA-2018:0378	2019-10-09
https://access.redhat.com/errata/RHSA-2018:0583	2019-10-09
https://access.redhat.com/errata/RHSA-2018:0585	2019-10-09
https://usn.ubuntu.com/3553-1	2019-10-09
https://usn.ubuntu.com/3685-1	2019-10-09
https://www.debian.org/security/2017/dsa-4031	2019-10-09
https://access.redhat.com/security/cve/CVE-2017-0903	2018-03-26
https://bugzilla.redhat.com/show_bug.cgi?id=1500488	2018-03-26

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"				2.0.0 Search vendor "Rubygems" for product "Rubygems" and version "2.0.0"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.0.0 Search vendor "Rubygems" for product "Rubygems" and version "2.0.0"		preview2		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.0.0 Search vendor "Rubygems" for product "Rubygems" and version "2.0.0"		preview2.1		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.0.0 Search vendor "Rubygems" for product "Rubygems" and version "2.0.0"		preview2.2		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.0.0 Search vendor "Rubygems" for product "Rubygems" and version "2.0.0"		rc1		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.0.0 Search vendor "Rubygems" for product "Rubygems" and version "2.0.0"		rc2		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.0.1 Search vendor "Rubygems" for product "Rubygems" and version "2.0.1"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.0.2 Search vendor "Rubygems" for product "Rubygems" and version "2.0.2"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.0.3 Search vendor "Rubygems" for product "Rubygems" and version "2.0.3"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.0.4 Search vendor "Rubygems" for product "Rubygems" and version "2.0.4"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.0.5 Search vendor "Rubygems" for product "Rubygems" and version "2.0.5"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.0.6 Search vendor "Rubygems" for product "Rubygems" and version "2.0.6"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.0.7 Search vendor "Rubygems" for product "Rubygems" and version "2.0.7"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.0.8 Search vendor "Rubygems" for product "Rubygems" and version "2.0.8"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.0.9 Search vendor "Rubygems" for product "Rubygems" and version "2.0.9"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.0.10 Search vendor "Rubygems" for product "Rubygems" and version "2.0.10"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.0.11 Search vendor "Rubygems" for product "Rubygems" and version "2.0.11"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.0.12 Search vendor "Rubygems" for product "Rubygems" and version "2.0.12"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.0.13 Search vendor "Rubygems" for product "Rubygems" and version "2.0.13"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.0.14 Search vendor "Rubygems" for product "Rubygems" and version "2.0.14"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.0.15 Search vendor "Rubygems" for product "Rubygems" and version "2.0.15"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.0.16 Search vendor "Rubygems" for product "Rubygems" and version "2.0.16"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.0.17 Search vendor "Rubygems" for product "Rubygems" and version "2.0.17"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.1.0 Search vendor "Rubygems" for product "Rubygems" and version "2.1.0"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.1.0.rc.1 Search vendor "Rubygems" for product "Rubygems" and version "2.1.0.rc.1"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.1.0.rc.2 Search vendor "Rubygems" for product "Rubygems" and version "2.1.0.rc.2"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.1.1 Search vendor "Rubygems" for product "Rubygems" and version "2.1.1"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.1.2 Search vendor "Rubygems" for product "Rubygems" and version "2.1.2"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.1.3 Search vendor "Rubygems" for product "Rubygems" and version "2.1.3"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.1.4 Search vendor "Rubygems" for product "Rubygems" and version "2.1.4"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.1.5 Search vendor "Rubygems" for product "Rubygems" and version "2.1.5"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.1.6 Search vendor "Rubygems" for product "Rubygems" and version "2.1.6"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.1.7 Search vendor "Rubygems" for product "Rubygems" and version "2.1.7"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.1.8 Search vendor "Rubygems" for product "Rubygems" and version "2.1.8"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.1.9 Search vendor "Rubygems" for product "Rubygems" and version "2.1.9"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.1.10 Search vendor "Rubygems" for product "Rubygems" and version "2.1.10"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.1.11 Search vendor "Rubygems" for product "Rubygems" and version "2.1.11"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.2.0 Search vendor "Rubygems" for product "Rubygems" and version "2.2.0"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.2.0.preiew.1 Search vendor "Rubygems" for product "Rubygems" and version "2.2.0.preiew.1"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.2.0.rc.1 Search vendor "Rubygems" for product "Rubygems" and version "2.2.0.rc.1"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.2.1 Search vendor "Rubygems" for product "Rubygems" and version "2.2.1"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.2.2 Search vendor "Rubygems" for product "Rubygems" and version "2.2.2"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.2.3 Search vendor "Rubygems" for product "Rubygems" and version "2.2.3"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.2.4 Search vendor "Rubygems" for product "Rubygems" and version "2.2.4"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.2.5 Search vendor "Rubygems" for product "Rubygems" and version "2.2.5"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.3.0 Search vendor "Rubygems" for product "Rubygems" and version "2.3.0"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.4.0 Search vendor "Rubygems" for product "Rubygems" and version "2.4.0"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.4.1 Search vendor "Rubygems" for product "Rubygems" and version "2.4.1"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.4.2 Search vendor "Rubygems" for product "Rubygems" and version "2.4.2"		-		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"				2.4.4 Search vendor "Rubygems" for product "Rubygems" and version "2.4.4"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.4.5 Search vendor "Rubygems" for product "Rubygems" and version "2.4.5"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.4.6 Search vendor "Rubygems" for product "Rubygems" and version "2.4.6"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.4.7 Search vendor "Rubygems" for product "Rubygems" and version "2.4.7"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.4.8 Search vendor "Rubygems" for product "Rubygems" and version "2.4.8"		-		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
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.5.1 Search vendor "Rubygems" for product "Rubygems" and version "2.5.1"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.5.2 Search vendor "Rubygems" for product "Rubygems" and version "2.5.2"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.6.0 Search vendor "Rubygems" for product "Rubygems" and version "2.6.0"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.6.1 Search vendor "Rubygems" for product "Rubygems" and version "2.6.1"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.6.2 Search vendor "Rubygems" for product "Rubygems" and version "2.6.2"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.6.3 Search vendor "Rubygems" for product "Rubygems" and version "2.6.3"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.6.4 Search vendor "Rubygems" for product "Rubygems" and version "2.6.4"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.6.5 Search vendor "Rubygems" for product "Rubygems" and version "2.6.5"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.6.6 Search vendor "Rubygems" for product "Rubygems" and version "2.6.6"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.6.7 Search vendor "Rubygems" for product "Rubygems" and version "2.6.7"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.6.8 Search vendor "Rubygems" for product "Rubygems" and version "2.6.8"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.6.9 Search vendor "Rubygems" for product "Rubygems" and version "2.6.9"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.6.10 Search vendor "Rubygems" for product "Rubygems" and version "2.6.10"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.6.11 Search vendor "Rubygems" for product "Rubygems" and version "2.6.11"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.6.12 Search vendor "Rubygems" for product "Rubygems" and version "2.6.12"		-		Affected
Rubygems Search vendor "Rubygems"		Rubygems Search vendor "Rubygems" for product "Rubygems"				2.6.13 Search vendor "Rubygems" for product "Rubygems" and version "2.6.13"		-		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
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
Redhat Search vendor "Redhat"		Enterprise Linux Desktop Search vendor "Redhat" for product "Enterprise Linux Desktop"				7.0 Search vendor "Redhat" for product "Enterprise Linux Desktop" and version "7.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Search vendor "Redhat" for product "Enterprise Linux Server"				7.0 Search vendor "Redhat" for product "Enterprise Linux Server" and version "7.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Aus Search vendor "Redhat" for product "Enterprise Linux Server Aus"				7.4 Search vendor "Redhat" for product "Enterprise Linux Server Aus" and version "7.4"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Aus Search vendor "Redhat" for product "Enterprise Linux Server Aus"				7.6 Search vendor "Redhat" for product "Enterprise Linux Server Aus" and version "7.6"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Eus Search vendor "Redhat" for product "Enterprise Linux Server Eus"				7.4 Search vendor "Redhat" for product "Enterprise Linux Server Eus" and version "7.4"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Eus Search vendor "Redhat" for product "Enterprise Linux Server Eus"				7.5 Search vendor "Redhat" for product "Enterprise Linux Server Eus" and version "7.5"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Eus Search vendor "Redhat" for product "Enterprise Linux Server Eus"				7.6 Search vendor "Redhat" for product "Enterprise Linux Server Eus" and version "7.6"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Tus Search vendor "Redhat" for product "Enterprise Linux Server Tus"				7.4 Search vendor "Redhat" for product "Enterprise Linux Server Tus" and version "7.4"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Tus Search vendor "Redhat" for product "Enterprise Linux Server Tus"				7.6 Search vendor "Redhat" for product "Enterprise Linux Server Tus" and version "7.6"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Workstation Search vendor "Redhat" for product "Enterprise Linux Workstation"				7.0 Search vendor "Redhat" for product "Enterprise Linux Workstation" and version "7.0"		-		Affected