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elFinder vulnerable to path traversal in LocalVolumeDriver connector

High severity GitHub Reviewed Published Jun 13, 2023 in Studio-42/elFinder • Updated Jun 19, 2023

Package

composer studio-42/elfinder (Composer)

Affected versions

< 2.1.62

Patched versions

2.1.62

Description

Impact

Path Traversal vulnerability in PHP LocalVolumeDriver connector. This vulnerability can be exploited by allowing untrusted users to write to the local file system.

This issue was caused by incomplete validity checking of the supplied request parameters. That problem has been fixed in elFinder Version 2.1.62.

Patches

This vulnerability has been fixed in elFinder 2.1.62. Installation managers should update to the latest version as soon as possible.

Workarounds

If you cannot update for some reason, you must stop using it or prohibit writing to untrusted users.

References

@nao-pon nao-pon published to Studio-42/elFinder Jun 13, 2023
Published to the GitHub Advisory Database Jun 14, 2023
Reviewed Jun 14, 2023
Last updated Jun 19, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS score

0.108%
(45th percentile)

Weaknesses

CVE ID

CVE-2023-35840

GHSA ID

GHSA-wm5g-p99q-66g4

Source code

Credits

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