PT-2021-15515 · Unknown · Elfinder.Netcore

Timo Müller · Published 2021-09-01 · Updated 2022-07-12 · CVE-2021-23427

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions elFinder.NetCore (affected versions not specified)

Description The issue is related to insufficient validation in the ExtractAsync function within the FileSystem, allowing for arbitrary extraction.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Path traversal

RCE

Weakness Enumeration

CWE-22

CWE-20

Related Identifiers

CVE-2021-23427

GHSA-WMPM-FQ7R-JQ56

SNYK-DOTNET-ELFINDERNETCORE-1567778

Affected Products

Elfinder.Netcore

References · 7

• 🔥 https://snyk.io/vuln/SNYK-DOTNET-ELFINDERNETCORE-1567778 · Exploit
• https://osv.dev/vulnerability/GHSA-wmpm-fq7r-jq56 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-23427 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-23427 · Security Note
• https://github.com/gordon-matt/elFinder.NetCore · Note
• https://github.com/gordon-matt/elFinder.NetCore/blob/633da9a4d7d5c9baefd1730ee51bf7af54889600/elFinder.NetCore/Drivers/FileSystem/FileSystemDriver.cs%23L226 · Note
• https://github.com/gordon-matt/elFinder.NetCore/blob/633da9a4d7d5c9baefd1730ee51bf7af54889600/elFinder.NetCore/Drivers/FileSystem/FileSystemDriver.cs#L226 · Note