GitLab Community Edition/Enterprise Edition up to 13.4.6/13.5.4/13.6.1 Markdown resource consumption

CVSS Meta Temp Score
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CTI Interest Score
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4.1$0-$5k0.00

Summaryinfo

A vulnerability was found in GitLab Community Edition and Enterprise Edition up to 13.4.6/13.5.4/13.6.1 and classified as problematic. This issue affects some unknown processing of the component Markdown Handler. Such manipulation leads to resource consumption. This vulnerability is documented as CVE-2020-26409. The attack can be executed remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in GitLab Community Edition and Enterprise Edition up to 13.4.6/13.5.4/13.6.1 (Bug Tracking Software). Affected by this issue is an unknown code of the component Markdown Handler. The manipulation with an unknown input leads to a resource consumption vulnerability. Using CWE to declare the problem leads to CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Impacted is availability.

The weakness was released 12/11/2020. The advisory is shared for download at hackerone.com. This vulnerability is handled as CVE-2020-26409. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

Upgrading to version 13.4.7, 13.5.5 or 13.6.2 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at gitlab.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

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

CVSSv2info

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

Exploitinginfo

Class: Resource consumption
CWE: 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: 🔍

Upgrade: Community Edition/Enterprise Edition 13.4.7/13.5.5/13.6.2
Patch: gitlab.com

Timelineinfo

10/01/2020 🔍
12/11/2020 +71 days 🔍
12/11/2020 +0 days 🔍
12/15/2020 +4 days 🔍

Sourcesinfo

Vendor: gitlab.com

Advisory: hackerone.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2020-26409 (🔍)
GCVE (CVE): GCVE-0-2020-26409
GCVE (VulDB): GCVE-100-166016

Entryinfo

Created: 12/11/2020 09:47
Updated: 12/15/2020 20:33
Changes: 12/11/2020 09:47 (41), 12/15/2020 20:29 (5), 12/15/2020 20:33 (1)
Complete: 🔍
Cache ID: 216::103

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