Chamilo LMS up to 1.11.24 exercise.ajax.php unrestricted upload

Summaryinfo

A vulnerability identified as critical has been detected in Chamilo LMS up to 1.11.24. This issue affects some unknown processing of the file /main/inc/ajax/exercise.ajax.php. This manipulation causes unrestricted upload. This vulnerability appears as CVE-2023-4225. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in Chamilo LMS up to 1.11.24 (Content Management System). It has been declared as critical. Affected by this vulnerability is some unknown functionality of the file /main/inc/ajax/exercise.ajax.php. The manipulation with an unknown input leads to a unrestricted upload vulnerability. The CWE definition for the vulnerability is CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Unrestricted file upload in `/main/inc/ajax/exercise.ajax.php` in Chamilo LMS <= v1.11.24 allows authenticated attackers with learner role to obtain remote code execution via uploading of PHP files.

The weakness was presented 11/28/2023. It is possible to read the advisory at support.chamilo.org. This vulnerability is known as CVE-2023-4225 since 08/08/2023. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/28/2023). The attack technique deployed by this issue is T1608.002 according to MITRE ATT&CK.

By approaching the search of inurl:main/inc/ajax/exercise.ajax.php it is possible to find vulnerable targets with Google Hacking.

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

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Content Management System

Vendor

• Chamilo

Name

• LMS

Version

• 1.11.0
• 1.11.1
• 1.11.2
• 1.11.3
• 1.11.4
• 1.11.5
• 1.11.6
• 1.11.7
• 1.11.8
• 1.11.9
• 1.11.10
• 1.11.11
• 1.11.12
• 1.11.13
• 1.11.14
• 1.11.15
• 1.11.16
• 1.11.17
• 1.11.18
• 1.11.19
• 1.11.20
• 1.11.21
• 1.11.22
• 1.11.23
• 1.11.24

License

• open-source

CPE 2.3info

• 🔍
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CPE 2.2info

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