arborist up to 2.8.1 on npm Project Directory symlink

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability was found in arborist up to 2.8.1 on npm. It has been rated as critical. Impacted is an unknown function of the component Project Directory Handler. The manipulation leads to symlink. This vulnerability is traded as CVE-2021-39135. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in arborist up to 2.8.1 on npm (NPM Package) and classified as critical. This issue affects an unknown function of the component Project Directory Handler. The manipulation with an unknown input leads to a symlink vulnerability. Using CWE to declare the problem leads to CWE-61. The product, when opening a file or directory, does not sufficiently account for when the file is a symbolic link that resolves to a target outside of the intended control sphere. This could allow an attacker to cause the product to operate on unauthorized files. Impacted is confidentiality, integrity, and availability.

The weakness was shared 08/31/2021. The advisory is shared at github.com. The identification of this vulnerability is CVE-2021-39135. Neither technical details nor an exploit are publicly available.

Upgrading to version 2.8.2 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
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: Symlink
CWE: CWE-61 / 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: 🔍

Upgrade: arborist 2.8.2

Timelineinfo

08/16/2021 🔍
08/31/2021 +15 days 🔍
08/31/2021 +0 days 🔍
09/03/2021 +3 days 🔍

Sourcesinfo

Advisory: github.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-39135 (🔍)
GCVE (CVE): GCVE-0-2021-39135
GCVE (VulDB): GCVE-100-181769

Entryinfo

Created: 08/31/2021 21:25
Updated: 09/03/2021 21:03
Changes: 08/31/2021 21:25 (39), 09/03/2021 20:54 (3), 09/03/2021 21:03 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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