Discourse Git URL redos

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Discourse. This issue affects some unknown processing of the component Git URL Handler. Performing a manipulation results in redos. This vulnerability is known as CVE-2023-25167. Remote exploitation of the attack is possible. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in Discourse (the affected version is unknown). This affects an unknown code of the component Git URL Handler. The manipulation with an unknown input leads to a redos vulnerability. CWE is classifying the issue as CWE-1333. The product uses a regular expression with an inefficient, possibly exponential worst-case computational complexity that consumes excessive CPU cycles. This is going to have an impact on availability. The summary by CVE is:

Discourse is an open source discussion platform. In affected versions a malicious user can cause a regular expression denial of service using a carefully crafted git URL. This issue is patched in the latest stable, beta and tests-passed versions of Discourse. Users are advised to upgrade. There are no known workarounds for this issue.

The weakness was published 02/08/2023 as GHSA-4w55-w26q-r35w. It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2023-25167 since 02/03/2023. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1449.003 according to MITRE ATT&CK.

Upgrading eliminates this vulnerability. Applying the patch ec4c30270887366dc28788bc4ab8a22a098573cd 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.

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Productinfo

Type

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

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

NVD Base Score: 5.7
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: Redos
CWE: CWE-1333 / CWE-400 / 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: 🔍

Patch: ec4c30270887366dc28788bc4ab8a22a098573cd

Timelineinfo

02/03/2023 🔍
02/08/2023 +5 days 🔍
02/08/2023 +0 days 🔍
03/09/2023 +29 days 🔍

Sourcesinfo

Product: github.com

Advisory: GHSA-4w55-w26q-r35w
Status: Confirmed

CVE: CVE-2023-25167 (🔍)
GCVE (CVE): GCVE-0-2023-25167
GCVE (VulDB): GCVE-100-220455

Entryinfo

Created: 02/08/2023 22:05
Updated: 03/09/2023 07:38
Changes: 02/08/2023 22:05 (49), 03/09/2023 07:38 (11)
Complete: 🔍
Cache ID: 216::103

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Discussion

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