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phpMyAdmin Local file exposure through symlinks with UploadDir

Moderate severity GitHub Reviewed Published May 17, 2022 to the GitHub Advisory Database • Updated Apr 24, 2024

Package

composer phpmyadmin/phpmyadmin (Composer)

Affected versions

>= 4.6, < 4.6.4
>= 4.4, < 4.4.15.8
>= 4.0, < 4.0.10.17

Patched versions

4.6.4
4.4.15.8
4.0.10.17

Description

An issue was discovered in phpMyAdmin. A user can specially craft a symlink on disk, to a file which phpMyAdmin is permitted to read but the user is not, which phpMyAdmin will then expose to the user. All 4.6.x versions (prior to 4.6.4), 4.4.x versions (prior to 4.4.15.8), and 4.0.x versions (prior to 4.0.10.17) are affected.

References

Published by the National Vulnerability Database Dec 11, 2016
Published to the GitHub Advisory Database May 17, 2022
Reviewed Apr 24, 2024
Last updated Apr 24, 2024

Severity

Moderate

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
High
Privileges required
Low
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:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS score

0.167%
(54th percentile)

Weaknesses

CVE ID

CVE-2016-6613

GHSA ID

GHSA-6j2v-g9rg-qcm5

Source code

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