Remote Code Execution Vulnerability in FusionPBX by FusionPBX Team
CVE-2021-43405

8.8HIGH

Key Information:

Vendor

Fusionpbx

Status
Fusionpbx
Vendor
CVE Published:
5 November 2021

What is CVE-2021-43405?

An issue exists in FusionPBX before version 4.5.30 where the fax_extension does not adequately restrict input, allowing for the inclusion of non-numeric characters. This lax input validation can potentially lead to remote code execution, thereby allowing unauthorized users to manipulate the application and execute arbitrary code. It is imperative for users to upgrade to the latest version to mitigate this security risk.

References

https://github.com/fusionpbx/fusionpbx/commit/2d2869c1a1e...
x_refsource_MISC
http://packetstormsecurity.com/files/164795/FusionPBX-4.5...
x_refsource_MISC

EPSS Score

35% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.