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Path traversal in Concrete CMS

Critical severity GitHub Reviewed Published Jun 25, 2022 to the GitHub Advisory Database • Updated Jan 27, 2023

Package

composer concrete5/core (Composer)

Affected versions

>= 9.0.0, < 9.1.0
< 8.5.8

Patched versions

9.1.0
8.5.8

Description

Concrete 8.5.7 and below as well as Concrete 9.0 through 9.0.2 allow traversal in /index.php/ccm/system/file/upload which could result in an Arbitrary File Delete exploit. This was remediated by sanitizing /index.php/ccm/system/file/upload to ensure Concrete doesn’t allow traversal and by changing isFullChunkFilePresent to have an early false return when input doesn't match expectations.Concrete CMS Security team ranked this 5.8 with CVSS v3.1 vector AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H. Credit to Siebene for reporting.

References

Published by the National Vulnerability Database Jun 24, 2022
Published to the GitHub Advisory Database Jun 25, 2022
Reviewed Jun 29, 2022
Last updated Jan 27, 2023

Severity

Critical

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
None
Integrity
High
Availability
High

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:N/I:H/A:H

EPSS score

0.141%
(50th percentile)

Weaknesses

CVE ID

CVE-2022-30117

GHSA ID

GHSA-3jxh-6635-6jwp

Source code

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