Summaryinfo

A vulnerability marked as problematic has been reported in FusionPBX up to 4.5.29. This affects an unknown part of the file log_viewer.php of the component Log View Page. The manipulation leads to information disclosure. This vulnerability is uniquely identified as CVE-2021-43403. No exploit exists. It is suggested to upgrade the affected component. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Detailsinfo

A vulnerability was found in FusionPBX up to 4.5.29. It has been rated as problematic. This issue affects an unknown code of the file log_viewer.php of the component Log View Page. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. The summary by CVE is:

An issue was discovered in FusionPBX before 4.5.30. The log_viewer.php Log View page allows an authenticated user to choose an arbitrary filename for download (i.e., not necessarily freeswitch.log in the intended directory).

The weakness was disclosed 09/29/2022 as 57b7bf0d6b67bda07d550b07d984a44755510d9c. The advisory is shared at github.com. The identification of this vulnerability is CVE-2021-43403 since 11/05/2021. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

By approaching the search of inurl:log_viewer.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 4.5.30 eliminates this vulnerability. Applying the patch 57b7bf0d6b67bda07d550b07d984a44755510d9c is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

• FusionPBX

Version

• 4.5.0
• 4.5.1
• 4.5.2
• 4.5.3
• 4.5.4
• 4.5.5
• 4.5.6
• 4.5.7
• 4.5.8
• 4.5.9
• 4.5.10
• 4.5.11
• 4.5.12
• 4.5.13
• 4.5.14
• 4.5.15
• 4.5.16
• 4.5.17
• 4.5.18
• 4.5.19
• 4.5.20
• 4.5.21
• 4.5.22
• 4.5.23
• 4.5.24
• 4.5.25
• 4.5.26
• 4.5.27
• 4.5.28
• 4.5.29

License

• free

Website

• Product: https://github.com/fusionpbx/fusionpbx/

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