CVE-2008-3790

Ruby 1.9 - REXML Remote 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

The REXML module in Ruby 1.8.6 through 1.8.6-p287, 1.8.7 through 1.8.7-p72, and 1.9 allows context-dependent attackers to cause a denial of service (CPU consumption) via an XML document with recursively nested entities, aka an "XML entity explosion."

El módulo REXML en Ruby 1.8.6 hasta la versión 1.8.6-p287, 1.8.7 hasta 1.8.7-p72, y 1.9 permite que atacantes, dependiendo del contexto, provocar una denegación de servicio (agotamiento CPU) a través de un documento XML con entidades anidadas recursivamente, también conocido como "Explosión de entidades XML".

*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

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2008-08-23 First Exploit
2008-08-26 CVE Reserved
2008-08-27 CVE Published
2024-08-07 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-20: Improper Input Validation

CAPEC

References (38)

URL	Tag	Source
http://groups.google.com/group/comp.lang.ruby/browse_thread/thread/19f69e8a081fc0d1/e138e014b74352ca	X_refsource_misc
http://secunia.com/advisories/31602	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/33185	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://weblog.rubyonrails.org/2008/9/3/rails-2-0-4-maintenance-release	X_refsource_confirm
http://www.openwall.com/lists/oss-security/2008/08/25/4	Mailing List
http://www.openwall.com/lists/oss-security/2008/08/26/1	Mailing List
http://www.openwall.com/lists/oss-security/2008/08/26/4	Mailing List
http://www.securityfocus.com/bid/30802	Vdb Entry
http://www.securitytracker.com/id?1020735	Vdb Entry
http://www.us-cert.gov/cas/techalerts/TA09-133A.html	Third Party Advisory
http://www.vupen.com/english/advisories/2008/2428	Vdb Entry
http://www.vupen.com/english/advisories/2008/2483	Vdb Entry
http://www.vupen.com/english/advisories/2009/1297	Vdb Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/44628	Vdb Entry
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10393	Signature

URL	Date	SRC
https://www.exploit-db.com/exploits/32292	2008-08-23
http://www.ruby-lang.org/en/news/2008/08/23/dos-vulnerability-in-rexml	2024-08-07

URL	Date	SRC
http://www.ruby-lang.org/security/20080823rexml/rexml-expansion-fix.rb	2018-10-03

URL	Date	SRC
http://lists.apple.com/archives/security-announce/2009/May/msg00002.html	2018-10-03
http://security.gentoo.org/glsa/glsa-200812-17.xml	2018-10-03
http://www.debian.org/security/2008/dsa-1651	2018-10-03
http://www.debian.org/security/2008/dsa-1652	2018-10-03
http://www.redhat.com/support/errata/RHSA-2008-0897.html	2018-10-03
https://usn.ubuntu.com/651-1	2018-10-03
https://usn.ubuntu.com/691-1	2018-10-03
https://www.redhat.com/archives/fedora-package-announce/2008-October/msg00259.html	2018-10-03
https://www.redhat.com/archives/fedora-package-announce/2008-October/msg00299.html	2018-10-03
https://access.redhat.com/security/cve/CVE-2008-3790	2008-10-21
https://bugzilla.redhat.com/show_bug.cgi?id=460134	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"				1.8.6 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"		p111		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"		p230		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"		p286		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"		p287		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"		p36		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"		p72		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 Search vendor "Ruby-lang" for product "Ruby" and version "1.9"		-		Affected