FreePBX 4.4.3 Operator Panel exec.php cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in FreePBX 4.4.3. This vulnerability affects unknown code of the file app/operator_panel/exec.php of the component Operator Panel Module. Such manipulation leads to cross site scripting. This vulnerability is listed as CVE-2019-11409. The attack may be performed from remote. In addition, an exploit is available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in FreePBX 4.4.3. Affected by this issue is an unknown code block of the file app/operator_panel/exec.php of the component Operator Panel Module. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. CVE summarizes:

app/operator_panel/exec.php in the Operator Panel module in FreePBX 4.4.3 suffers from a command injection vulnerability due to a lack of input validation that allows authenticated non-administrative attackers to execute commands on the host. This can further lead to remote code execution when combined with an XSS vulnerability also present in the FusionPBX Operator Panel module.

The weakness was presented 06/17/2019. This vulnerability is handled as CVE-2019-11409 since 04/21/2019. The attack may be launched remotely. The requirement for exploitation is a simple authentication. Successful exploitation requires user interaction by the victim. Technical details as well as a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1059.007.

A public exploit has been developed by Dustin Cobb in Ruby/Metasploit and been published 6 months after the advisory. The exploit is available at exploit-db.com. It is declared as functional. By approaching the search of inurl:app/operator_panel/exec.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.

The vulnerability is also documented in the vulnerability database at Exploit-DB (47697). See VDB-136569 and VDB-136566 for similar entries. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.1
VulDB Meta Temp Score: 6.1

VulDB Base Score: 3.5
VulDB Temp Score: 3.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Functional
Author: Dustin Cobb
Programming Language: 🔍
Download: 🔍
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Patch: github.com

Timelineinfo

04/21/2019 🔍
06/17/2019 +57 days 🔍
06/18/2019 +1 days 🔍
11/20/2019 +155 days 🔍
05/26/2025 +2014 days 🔍

Sourcesinfo

Advisory: 153256
Status: Confirmed

CVE: CVE-2019-11409 (🔍)
GCVE (CVE): GCVE-0-2019-11409
GCVE (VulDB): GCVE-100-136568
scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 06/18/2019 09:14
Updated: 05/26/2025 03:53
Changes: 06/18/2019 09:14 (35), 11/25/2019 07:33 (3), 11/25/2019 07:34 (21), 10/05/2023 17:15 (9), 05/26/2025 03:53 (19)
Complete: 🔍
Committer: misc
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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