Discourse up to 2.9.0.beta9 Javascript Error denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.0$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Discourse up to 2.9.0.beta9. The affected element is an unknown function of the component Javascript Error Handler. The manipulation leads to denial of service. This vulnerability is uniquely identified as CVE-2022-39232. The attack is possible to be carried out remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Discourse up to 2.9.0.beta9. It has been rated as problematic. This issue affects some unknown functionality of the component Javascript Error Handler. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. The summary by CVE is:

Discourse is an open source discussion platform. Starting with version 2.9.0.beta5 and prior to version 2.9.0.beta10, an incomplete quote can generate a JavaScript error which will crash the current page in the browser in some cases. Version 2.9.0.beta10 added a fix and tests to ensure incomplete quotes won't break the app. As a workaround, the quote can be fixed via the rails console.

The weakness was disclosed 09/30/2022 as GHSA-cv64-v73f-7wq5. The advisory is shared at github.com. The identification of this vulnerability is CVE-2022-39232 since 09/02/2022. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

Upgrading to version 2.9.0.beta10 eliminates this vulnerability. Applying the patch eab33af5bf19827527fe79134d865b5c727f6530 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 5.0

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.3
NVD Vector: 🔍

CNA Base Score: 6.5
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Discourse 2.9.0.beta10
Patch: eab33af5bf19827527fe79134d865b5c727f6530

Timelineinfo

09/02/2022 🔍
09/30/2022 +28 days 🔍
09/30/2022 +0 days 🔍
10/26/2022 +26 days 🔍

Sourcesinfo

Product: github.com

Advisory: GHSA-cv64-v73f-7wq5
Status: Confirmed

CVE: CVE-2022-39232 (🔍)
GCVE (CVE): GCVE-0-2022-39232
GCVE (VulDB): GCVE-100-209897

Entryinfo

Created: 09/30/2022 08:39
Updated: 10/26/2022 09:28
Changes: 09/30/2022 08:39 (42), 10/26/2022 09:28 (21)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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