CMS Made Simple 2.2.7 admin/checksum.php path traversal

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CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.00

A vulnerability classified as critical has been found in CMS Made Simple 2.2.7 (Content Management System). Affected is an unknown code block of the file admin/checksum.php?__c. The manipulation with an unknown input leads to a directory traversal vulnerability. CWE is classifying the issue as CWE-22. This is going to have an impact on confidentiality. CVE summarizes:

In CMS Made Simple 2.2.7, a Directory Traversal issue makes it possible to determine the existence of files and directories outside the web-site installation directory, and determine whether a file has contents matching a specified checksum. The attack uses an admin/checksum.php?__c= request.

The bug was discovered 04/10/2018. The weakness was disclosed 04/23/2018 (Website). The advisory is available at gist.github.com. This vulnerability is traded as CVE-2018-9921 since 04/10/2018. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 13 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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CPE 2.3infoedit

CPE 2.2infoedit

CVSSv3infoedit

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

CVSSv2infoedit

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfoedit

Class: Directory traversal
CWE: CWE-22
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfoedit

Threat: 🔍
Adversaries: 🔍
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Countermeasuresinfoedit

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfoedit

04/10/2018 🔍
04/10/2018 +0 days 🔍
04/23/2018 +12 days 🔍
04/23/2018 +0 days 🔍
04/24/2018 +1 days 🔍
01/30/2020 +646 days 🔍

Sourcesinfoedit

Advisory: gist.github.com
Status: Not defined

CVE: CVE-2018-9921 (🔍)

Entryinfoedit

Created: 04/24/2018 09:03 AM
Updated: 01/30/2020 05:00 PM
Changes: (1) vulnerability_discoverydate
Complete: 🔍

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