CVE-2024-26146

Possible Denial of Service Vulnerability in Rack Header Parsing

Severity Score

5.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

Rack is a modular Ruby web server interface. Carefully crafted headers can cause header parsing in Rack to take longer than expected resulting in a possible denial of service issue. Accept and Forwarded headers are impacted. Ruby 3.2 has mitigations for this problem, so Rack applications using Ruby 3.2 or newer are unaffected. This vulnerability is fixed in 2.0.9.4, 2.1.4.4, 2.2.8.1, and 3.0.9.1.

Rack es una interfaz modular de servidor web Ruby. Los encabezados cuidadosamente elaborados pueden hacer que el análisis de encabezados en Rack demore más de lo esperado, lo que resulta en un posible problema de denegación de servicio. Los encabezados Aceptar y Reenviar se ven afectados. Ruby 3.2 tiene mitigaciones para este problema, por lo que las aplicaciones Rack que usan Ruby 3.2 o posterior no se ven afectadas. Esta vulnerabilidad se solucionó en 2.0.9.4, 2.1.4.4, 2.2.8.1 y 3.0.9.1.

A denial of service (DoS) vulnerability was found in rubygem-rack in how it parses Rack Header. Carefully crafted headers can cause header parsing in Rack to take longer than expected, resulting in a possible denial of service issue. Accept and Forwarded headers are impacted.

*Credits: N/A

CVSS Scores

GitHubv3.1 5.3

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

None

Automatable

Yes

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-02-14 CVE Reserved
2024-02-28 CVE Published
2024-02-29 EPSS Updated
2024-08-01 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-1333: Inefficient Regular Expression Complexity

CAPEC

References (11)

URL	Tag	Source
https://discuss.rubyonrails.org/t/possible-denial-of-service-vulnerability-in-rack-header-parsing/84942	X_refsource_misc
https://github.com/rack/rack/commit/30b8e39a578b25d4bdcc082c1c52c6f164b59716	X_refsource_misc
https://github.com/rack/rack/commit/6c5d90bdcec0949f7ba06db62fb740dab394b582	X_refsource_misc
https://github.com/rack/rack/commit/a227cd793778c7c3a827d32808058571569cda6f	X_refsource_misc
https://github.com/rack/rack/commit/e4c117749ba24a66f8ec5a08eddf68deeb425ccd	X_refsource_misc
https://github.com/rack/rack/security/advisories/GHSA-54rr-7fvw-6x8f	X_refsource_confirm
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rack/CVE-2024-26146.yml	X_refsource_misc
https://lists.debian.org/debian-lts-announce/2024/04/msg00022.html
https://security.netapp.com/advisory/ntap-20240510-0006

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2024-26146	2024-05-28
https://bugzilla.redhat.com/show_bug.cgi?id=2265595	2024-05-28

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Rack Search vendor "Rack"		Rack Search vendor "Rack" for product "Rack"				>= 3.0.0.0 < 3.0.9.1 Search vendor "Rack" for product "Rack" and version " >= 3.0.0.0 < 3.0.9.1"		en		Affected
Rack Search vendor "Rack"		Rack Search vendor "Rack" for product "Rack"				>= 2.2.0.0 < 2.2.8.1 Search vendor "Rack" for product "Rack" and version " >= 2.2.0.0 < 2.2.8.1"		en		Affected
Rack Search vendor "Rack"		Rack Search vendor "Rack" for product "Rack"				>= 2.1.0.0 < 2.1.4.4 Search vendor "Rack" for product "Rack" and version " >= 2.1.0.0 < 2.1.4.4"		en		Affected
Rack Search vendor "Rack"		Rack Search vendor "Rack" for product "Rack"				< 2.0.9.4 Search vendor "Rack" for product "Rack" and version " < 2.0.9.4"		en		Affected