CVE-2023-47120

Discourse DoS through Onebox favicon URL

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

Discourse is an open source platform for community discussion. In versions 3.1.0 through 3.1.2 of the `stable` branch and versions 3.1.0,beta6 through 3.2.0.beta2 of the `beta` and `tests-passed` branches, Redis memory can be depleted by crafting a site with an abnormally long favicon URL and drafting multiple posts which Onebox it. The issue is patched in version 3.1.3 of the `stable` branch and version 3.2.0.beta3 of the `beta` and `tests-passed` branches. There are no known workarounds.

Discourse es una plataforma de código abierto para el debate comunitario. En las versiones 3.1.0 a 3.1.2 de la rama "stable" y en las versiones 3.1.0, beta6 a 3.2.0.beta2 de las ramas "beta" y "tests-passed", la memoria de Redis se puede agotar al crear un sitio con una URL de favicon anormalmente larga y redactando múltiples publicaciones en Onebox. El problema se solucionó en la versión 3.1.3 de la rama "stable" y en la versión 3.2.0.beta3 de las ramas "beta" y "tests-passed". No se conocen workarounds.

*Credits: N/A

CVSS Scores

NISTv3.1 7.5

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

None

Automatable

Yes

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2023-10-30 CVE Reserved
2023-11-10 CVE Published
2024-09-03 CVE Updated
2024-11-16 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-770: Allocation of Resources Without Limits or Throttling

CAPEC

References (3)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://github.com/discourse/discourse/commit/95a82d608d6377faf68a0e2c5d9640b043557852	2023-11-17
https://github.com/discourse/discourse/commit/e910dd09140cb4abc3a563b95af4a137ca7fa0ce	2023-11-17

URL	Date	SRC
https://github.com/discourse/discourse/security/advisories/GHSA-77cw-xhj8-hfp3	2023-11-17

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Discourse Search vendor "Discourse"		Discourse Search vendor "Discourse" for product "Discourse"				>= 3.1.0 < 3.1.3 Search vendor "Discourse" for product "Discourse" and version " >= 3.1.0 < 3.1.3"		stable		Affected
Discourse Search vendor "Discourse"		Discourse Search vendor "Discourse" for product "Discourse"				3.1.0 Search vendor "Discourse" for product "Discourse" and version "3.1.0"		beta6, beta		Affected
Discourse Search vendor "Discourse"		Discourse Search vendor "Discourse" for product "Discourse"				3.1.0 Search vendor "Discourse" for product "Discourse" and version "3.1.0"		beta7, beta		Affected
Discourse Search vendor "Discourse"		Discourse Search vendor "Discourse" for product "Discourse"				3.1.0 Search vendor "Discourse" for product "Discourse" and version "3.1.0"		beta8, beta		Affected
Discourse Search vendor "Discourse"		Discourse Search vendor "Discourse" for product "Discourse"				3.2.0 Search vendor "Discourse" for product "Discourse" and version "3.2.0"		beta1, beta		Affected
Discourse Search vendor "Discourse"		Discourse Search vendor "Discourse" for product "Discourse"				3.2.0 Search vendor "Discourse" for product "Discourse" and version "3.2.0"		beta2, beta		Affected