Git Symbolic Links link following

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Git. Impacted is an unknown function of the component Symbolic Links Handler. The manipulation leads to link following. This vulnerability is traded as CVE-2021-21300. It is possible to initiate the attack remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Git (Versioning Software) (affected version not known) and classified as critical. This issue affects some unknown functionality of the component Symbolic Links Handler. The manipulation with an unknown input leads to a link following vulnerability. Using CWE to declare the problem leads to CWE-59. The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource. Impacted is confidentiality, integrity, and availability.

The weakness was shared 03/10/2021. It is possible to read the advisory at openwall.com. The identification of this vulnerability is CVE-2021-21300. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

Upgrading eliminates this vulnerability. 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.

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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: 6.6
VulDB Meta Temp Score: 6.5

VulDB Base Score: 5.8
VulDB Temp Score: 5.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Link following
CWE: CWE-59
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: github.com

Timelineinfo

12/22/2020 🔍
03/10/2021 +78 days 🔍
03/10/2021 +0 days 🔍
03/29/2021 +19 days 🔍

Sourcesinfo

Product: github.com

Advisory: openwall.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-21300 (🔍)
GCVE (CVE): GCVE-0-2021-21300
GCVE (VulDB): GCVE-100-170879

Entryinfo

Created: 03/10/2021 09:52
Updated: 03/29/2021 15:49
Changes: 03/10/2021 09:52 (38), 03/29/2021 15:46 (5), 03/29/2021 15:49 (19)
Complete: 🔍
Cache ID: 216::103

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