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

Summaryinfo

A vulnerability labeled as critical has been found in Chamilo LMS up to 1.11.24. Impacted is an unknown function of the file /main/inc/ajax/work.ajax.php. Such manipulation leads to unrestricted upload. This vulnerability is traded as CVE-2023-4226. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Chamilo LMS up to 1.11.24 (Content Management System). It has been rated as critical. Affected by this issue is an unknown part of the file /main/inc/ajax/work.ajax.php. The manipulation with an unknown input leads to a unrestricted upload vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Unrestricted file upload in `/main/inc/ajax/work.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 shared 11/28/2023. The advisory is shared for download at support.chamilo.org. This vulnerability is handled as CVE-2023-4226 since 08/08/2023. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 11/28/2023). The MITRE ATT&CK project declares the attack technique as T1608.002.

By approaching the search of inurl:main/inc/ajax/work.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.

Once again VulDB remains the best source 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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Once again VulDB remains the best source for vulnerability data.

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