CVE-2022-39241

Possible Server-Side Request Forgery (SSRF) in webhooks

Severity Score

4.9

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Discourse is a platform for community discussion. A malicious admin could use this vulnerability to perform port enumeration on the local host or other hosts on the internal network, as well as against hosts on the Internet. Latest `stable`, `beta`, and `test-passed` versions are now patched. As a workaround, self-hosters can use `DISCOURSE_BLOCKED_IP_BLOCKS` env var (which overrides `blocked_ip_blocks` setting) to stop webhooks from accessing private IPs.

Discourse es una plataforma para la discusión comunitaria. Un administrador malintencionado podría utilizar esta vulnerabilidad para realizar una enumeración de puertos en el host local u otros hosts de la red interna, así como contra hosts de Internet. Las últimas versiones "stable", "beta" y `test-passed` ahora están parcheadas. Como workaround, los autohospedadores pueden usar la var de entorno `DISCOURSE_BLOCKED_IP_BLOCKS` (que anula la configuración `blocked_ip_blocks`) para impedir que los webhooks accedan a IP privadas.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

Low

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-09-02 CVE Reserved
2022-11-02 CVE Published
2024-05-25 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-918: Server-Side Request Forgery (SSRF)

CAPEC

References (1)

URL	Tag	Source
https://github.com/discourse/discourse/security/advisories/GHSA-rcc5-28r3-23rr	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

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"				< 2.8.10 Search vendor "Discourse" for product "Discourse" and version " < 2.8.10"		-		Affected
Discourse Search vendor "Discourse"		Discourse Search vendor "Discourse" for product "Discourse"				2.9.0 Search vendor "Discourse" for product "Discourse" and version "2.9.0"		beta1		Affected
Discourse Search vendor "Discourse"		Discourse Search vendor "Discourse" for product "Discourse"				2.9.0 Search vendor "Discourse" for product "Discourse" and version "2.9.0"		beta10		Affected
Discourse Search vendor "Discourse"		Discourse Search vendor "Discourse" for product "Discourse"				2.9.0 Search vendor "Discourse" for product "Discourse" and version "2.9.0"		beta2		Affected
Discourse Search vendor "Discourse"		Discourse Search vendor "Discourse" for product "Discourse"				2.9.0 Search vendor "Discourse" for product "Discourse" and version "2.9.0"		beta3		Affected
Discourse Search vendor "Discourse"		Discourse Search vendor "Discourse" for product "Discourse"				2.9.0 Search vendor "Discourse" for product "Discourse" and version "2.9.0"		beta4		Affected
Discourse Search vendor "Discourse"		Discourse Search vendor "Discourse" for product "Discourse"				2.9.0 Search vendor "Discourse" for product "Discourse" and version "2.9.0"		beta5		Affected
Discourse Search vendor "Discourse"		Discourse Search vendor "Discourse" for product "Discourse"				2.9.0 Search vendor "Discourse" for product "Discourse" and version "2.9.0"		beta6		Affected
Discourse Search vendor "Discourse"		Discourse Search vendor "Discourse" for product "Discourse"				2.9.0 Search vendor "Discourse" for product "Discourse" and version "2.9.0"		beta7		Affected
Discourse Search vendor "Discourse"		Discourse Search vendor "Discourse" for product "Discourse"				2.9.0 Search vendor "Discourse" for product "Discourse" and version "2.9.0"		beta8		Affected
Discourse Search vendor "Discourse"		Discourse Search vendor "Discourse" for product "Discourse"				2.9.0 Search vendor "Discourse" for product "Discourse" and version "2.9.0"		beta9		Affected