Moby up to 20.10.8 /var/lib/docker permissions

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Moby up to 20.10.8. It has been declared as critical. The impacted element is an unknown function in the library /var/lib/docker. Executing a manipulation can lead to permissions. The identification of this vulnerability is CVE-2021-41091. The attack may be launched remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Moby up to 20.10.8 and classified as critical. This vulnerability affects some unknown processing in the library /var/lib/docker. The manipulation with an unknown input leads to a permissions vulnerability. The CWE definition for the vulnerability is CWE-281. The product does not preserve permissions or incorrectly preserves permissions when copying, restoring, or sharing objects, which can cause them to have less restrictive permissions than intended. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was shared 10/05/2021 as GHSA-3fwx-pjgw-3558. The advisory is shared for download at github.com. This vulnerability was named CVE-2021-41091 since 09/15/2021. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1222.

Upgrading to version 20.10.9 eliminates this vulnerability. Applying the patch f0ab919f518c47240ea0e72d0999576bb8008e64 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

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.1

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 6.3
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

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

Exploitinginfo

Class: Permissions
CWE: CWE-281 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
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: Moby 20.10.9
Patch: f0ab919f518c47240ea0e72d0999576bb8008e64

Timelineinfo

09/15/2021 🔍
10/05/2021 +20 days 🔍
10/05/2021 +0 days 🔍
10/08/2021 +3 days 🔍

Sourcesinfo

Product: github.com

Advisory: GHSA-3fwx-pjgw-3558
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-41091 (🔍)
GCVE (CVE): GCVE-0-2021-41091
GCVE (VulDB): GCVE-100-183784

Entryinfo

Created: 10/05/2021 07:41
Updated: 10/08/2021 18:46
Changes: 10/05/2021 07:41 (51), 10/08/2021 18:46 (2)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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