CVE-2017-10784

ruby: Escape sequence injection vulnerability in the Basic authentication of WEBrick

Severity Score

8.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The Basic authentication code in WEBrick library in Ruby before 2.2.8, 2.3.x before 2.3.5, and 2.4.x through 2.4.1 allows remote attackers to inject terminal emulator escape sequences into its log and possibly execute arbitrary commands via a crafted user name.

El código de autenticación Basic en la biblioteca WEBrick en Ruby en versiones anteriores a la 2.2.8, 2.3.x anteriores a la 2.3.5 y 2.4.x hasta la 2.4.1 permite que atacantes remotos inyecten secuencias de escape del emulador del terminal en su registro y que puedan ejecutar comandos arbitrarios mediante un nombre de usuario manipulado.

It was found that WEBrick did not sanitize all its log messages. If logs were printed in a terminal, an attacker could interact with the terminal via the use of escape sequences.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

Low

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-07-01 CVE Reserved
2017-09-19 CVE Published
2023-12-24 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-117: Improper Output Neutralization for Logs
CWE-287: Improper Authentication

CAPEC

References (17)

URL	Tag	Source
http://www.securityfocus.com/bid/100853	Third Party Advisory
http://www.securitytracker.com/id/1039363	Third Party Advisory
http://www.securitytracker.com/id/1042004	Vdb Entry
https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html	Mailing List

URL	Date	SRC

URL	Date	SRC
https://www.ruby-lang.org/en/news/2017/09/14/ruby-2-2-8-released	2018-10-31
https://www.ruby-lang.org/en/news/2017/09/14/ruby-2-3-5-released	2018-10-31

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2017:3485	2018-10-31
https://access.redhat.com/errata/RHSA-2018:0378	2018-10-31
https://access.redhat.com/errata/RHSA-2018:0583	2018-10-31
https://access.redhat.com/errata/RHSA-2018:0585	2018-10-31
https://security.gentoo.org/glsa/201710-18	2018-10-31
https://usn.ubuntu.com/3528-1	2018-10-31
https://usn.ubuntu.com/3685-1	2018-10-31
https://www.debian.org/security/2017/dsa-4031	2018-10-31
https://www.ruby-lang.org/en/news/2017/09/14/webrick-basic-auth-escape-sequence-injection-cve-2017-10784	2018-10-31
https://access.redhat.com/security/cve/CVE-2017-10784	2018-03-26
https://bugzilla.redhat.com/show_bug.cgi?id=1492012	2018-03-26

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"				<= 2.2.7 Search vendor "Ruby-lang" for product "Ruby" and version " <= 2.2.7"		-		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				2.3.0 Search vendor "Ruby-lang" for product "Ruby" and version "2.3.0"		-		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				2.3.0 Search vendor "Ruby-lang" for product "Ruby" and version "2.3.0"		preview1		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				2.3.0 Search vendor "Ruby-lang" for product "Ruby" and version "2.3.0"		preview2		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				2.3.1 Search vendor "Ruby-lang" for product "Ruby" and version "2.3.1"		-		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				2.3.2 Search vendor "Ruby-lang" for product "Ruby" and version "2.3.2"		-		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				2.3.3 Search vendor "Ruby-lang" for product "Ruby" and version "2.3.3"		-		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				2.3.4 Search vendor "Ruby-lang" for product "Ruby" and version "2.3.4"		-		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				2.4.0 Search vendor "Ruby-lang" for product "Ruby" and version "2.4.0"		-		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				2.4.0 Search vendor "Ruby-lang" for product "Ruby" and version "2.4.0"		preview1		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				2.4.0 Search vendor "Ruby-lang" for product "Ruby" and version "2.4.0"		preview2		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				2.4.0 Search vendor "Ruby-lang" for product "Ruby" and version "2.4.0"		preview3		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				2.4.0 Search vendor "Ruby-lang" for product "Ruby" and version "2.4.0"		rc1		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				2.4.1 Search vendor "Ruby-lang" for product "Ruby" and version "2.4.1"		-		Affected