Docker up to 19.03.14/20.10.2 Remapped Root path traversal

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Docker up to 19.03.14/20.10.2. This vulnerability affects unknown code of the file /var/lib/docker/<remapping> of the component Remapped Root Handler. Executing a manipulation can lead to path traversal. This vulnerability appears as CVE-2021-21284. The attacker needs to be present on the local network. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Docker up to 19.03.14/20.10.2 (Virtualization Software). It has been declared as critical. This vulnerability affects an unknown part of the file /var/lib/docker/<remapping> of the component Remapped Root Handler. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was presented 02/02/2021. The advisory is available at github.com. This vulnerability was named CVE-2021-21284. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

Upgrading to version 19.03.15 or 20.10.3 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying a patch 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.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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: Docker 19.03.15/20.10.3
Patch: github.com

Timelineinfo

12/22/2020 🔍
02/02/2021 +42 days 🔍
02/02/2021 +0 days 🔍
02/22/2021 +20 days 🔍

Sourcesinfo

Advisory: github.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-21284 (🔍)
GCVE (CVE): GCVE-0-2021-21284
GCVE (VulDB): GCVE-100-169018
scip Labs: https://www.scip.ch/en/?labs.20171019

Entryinfo

Created: 02/02/2021 21:40
Updated: 02/22/2021 10:23
Changes: 02/02/2021 21:40 (42), 02/22/2021 10:17 (6), 02/22/2021 10:23 (8)
Complete: 🔍
Cache ID: 216::103

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