CVE-2008-3656

Ruby 1.9 - 'WEBrick::HTTP::DefaultFileHandler' Crafted HTTP Request Denial of Service

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Algorithmic complexity vulnerability in the WEBrick::HTTPUtils.split_header_value function in WEBrick::HTTP::DefaultFileHandler in WEBrick in Ruby 1.8.5 and earlier, 1.8.6 through 1.8.6-p286, 1.8.7 through 1.8.7-p71, and 1.9 through r18423 allows context-dependent attackers to cause a denial of service (CPU consumption) via a crafted HTTP request that is processed by a backtracking regular expression.

Una vulnerabilidad de complejidad algorítmica en la función WEBrick::HTTPUtils.split_header_value en WEBrick::HTTP::DefaultFileHandler en WEBrick en Ruby versiones 1.8.5 y anteriores, versiones 1.8.6 hasta 1.8.6-p286, versiones 1.8.7 hasta 1.8.7-p71, y versiones 1.9 hasta r18423, permite a los atacantes dependiendo del contexto causar una denegación de servicio (consumo de CPU) por medio de una petición HTTP diseñada que se procesa mediante una expresión regular backtracking.

The WEBrick::HTTP::DefaultFileHandler in WEBrick in Ruby 1.8.5 and earlier, 1.8.6 to 1.8.6-p286, 1.8.7 to 1.8.7-p71, and 1.9 to r18423 allows for a DoS (CPU consumption) via a crafted HTTP request.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2008-08-11 First Exploit
2008-08-12 CVE Reserved
2008-08-13 CVE Published
2024-08-07 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-399: Resource Management Errors

CAPEC

References (34)

URL	Tag	Source
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=494401	X_refsource_confirm
http://secunia.com/advisories/31430	Third Party Advisory
http://secunia.com/advisories/31697	Third Party Advisory
http://secunia.com/advisories/32165	Third Party Advisory
http://secunia.com/advisories/32219	Third Party Advisory
http://secunia.com/advisories/32255	Third Party Advisory
http://secunia.com/advisories/32256	Third Party Advisory
http://secunia.com/advisories/32371	Third Party Advisory
http://secunia.com/advisories/33178	Third Party Advisory
http://secunia.com/advisories/35074	Third Party Advisory
http://support.apple.com/kb/HT3549	X_refsource_confirm
http://support.avaya.com/elmodocs2/security/ASA-2008-424.htm	X_refsource_confirm
http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0264	X_refsource_confirm
http://www.securityfocus.com/archive/1/495884/100/0/threaded	Mailing List
http://www.securityfocus.com/bid/30644	Vdb Entry
http://www.securitytracker.com/id?1020654	Vdb Entry
http://www.us-cert.gov/cas/techalerts/TA09-133A.html	Third Party Advisory
http://www.vupen.com/english/advisories/2008/2334	Vdb Entry
http://www.vupen.com/english/advisories/2009/1297	Vdb Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/44371	Vdb Entry
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9682	Signature

URL	Date	SRC
https://packetstorm.news/files/id/180518	2024-08-31
https://www.exploit-db.com/exploits/32222	2008-08-11
http://www.ruby-lang.org/en/news/2008/08/08/multiple-vulnerabilities-in-ruby	2024-08-07

URL	Date	SRC

URL	Date	SRC
http://lists.apple.com/archives/security-announce/2009/May/msg00002.html	2018-10-11
http://security.gentoo.org/glsa/glsa-200812-17.xml	2018-10-11
http://www.debian.org/security/2008/dsa-1651	2018-10-11
http://www.debian.org/security/2008/dsa-1652	2018-10-11
http://www.redhat.com/support/errata/RHSA-2008-0897.html	2018-10-11
https://usn.ubuntu.com/651-1	2018-10-11
https://www.redhat.com/archives/fedora-package-announce/2008-October/msg00259.html	2018-10-11
https://www.redhat.com/archives/fedora-package-announce/2008-October/msg00299.html	2018-10-11
https://access.redhat.com/security/cve/CVE-2008-3656	2008-10-21
https://bugzilla.redhat.com/show_bug.cgi?id=458953	2008-10-21

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"				<= 1.8.5 Search vendor "Ruby-lang" for product "Ruby" and version " <= 1.8.5"		-		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.6.8 Search vendor "Ruby-lang" for product "Ruby" and version "1.6.8"		-		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.0 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.0"		-		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.1 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.1"		-		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.1 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.1"		-9		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.2 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.2"		-		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.2 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.2"		preview2		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.2 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.2"		preview3		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.2 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.2"		preview4		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.3 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.3"		-		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.3 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.3"		preview1		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.3 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.3"		preview2		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.3 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.3"		preview3		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.4 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.4"		-		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.4 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.4"		preview1		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.4 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.4"		preview2		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.4 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.4"		preview3		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.5 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.5"		p11		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.5 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.5"		p113		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.5 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.5"		p115		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.5 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.5"		p12		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.5 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.5"		p2		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.5 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.5"		p35		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.5 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.5"		preview1		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.5 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.5"		preview2		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.5 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.5"		preview3		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.5 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.5"		preview4		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.5 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.5"		preview5		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.6 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.6"		-		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.6 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.6"		p110		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.6 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.6"		p114		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.6 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.6"		preview1		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.6 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.6"		preview2		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.6 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.6"		preview3		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.7 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.7"		-		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.7 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.7"		p17		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.7 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.7"		p22		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.7 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.7"		p71		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.7 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.7"		preview1		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.7 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.7"		preview2		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.7 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.7"		preview3		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8.7 Search vendor "Ruby-lang" for product "Ruby" and version "1.8.7"		preview4		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.9.0 Search vendor "Ruby-lang" for product "Ruby" and version "1.9.0"		-		Affected