#web

Red Hat and the National Institute of Standards and Technology (NIST) are pleased to announce our third annual Cybersecurity Open Forum – Improving the Nation’s Cybersecurity. On April 24, 2024, cybersecurity experts will gather in Washington, D.C., to share best practices and strategies for successfully navigating the evolving cybersecurity landscape. As threats evolve in sophistication and scale, government and industry must adapt swiftly and effectively to protect data and infrastructure.Attendees will learn about the nature of cybersecurity vulnerabilities, strategies to enable protect

### Summary A stored XSS vulnerability in Excalidraw's web embeddable component. This allows arbitrary JavaScript to be run in the context of the domain where the editor is hosted. ### Poc Inserting an embed with the below url (can be copy/pasted onto canvas to insert as embed) will log `42` to the console: ``` https://gist.github.com/vv=v<script>console.log(42)</script> ``` ### Details There were two vectors. One rendering untrusted string as iframe's `srcdoc` without properly sanitizing against HTML injection. Second by improperly sanitizing against attribute HTML injection. This in conjunction with allowing `allow-same-origin` sandbox flag (necessary for several embeds) resulted in the XSS. Former was fixed by no longer rendering unsafe `srcdoc` content verbatim, and instead strictly parsing the supplied content and constructing the `srcdoc` manually. The latter by sanitizing properly. The `allow-same-origin` flag is now also set only in cases that require it, following the...

A flaw was found in keycloak 22.0.5. Errors in browser client during setup/auth with "Security Key login" (WebAuthn) are written into the form, send to Keycloak and logged without escaping allowing log injection. Acknowledgements: Special thanks toTheresa Henze for reporting this issue and helping us improve our security.

Using particular inputs with `@solana/web3.js` will result in memory exhaustion (OOM). If you have a server, client, mobile, or desktop product that accepts untrusted input for use with `@solana/web3.js`, your application/service may crash, resulting in a loss of availability.

### Impact Failing webhooks logs are available when solution is not in debug mode. Those logs can contain information that is critical. ### Affected Versions Umbraco versions 13.0.0 - 13.1.1 ### Patches 13.1.1 ### Workarounds Disabling webhooks functionality.

Palo Alto OS was recently hit by a command injection zero day attack. These are exploitation details related to the zero day.

pgAdmin versions 8.3 and below have a path traversal vulnerability within their session management logic that can allow a pickled file to be loaded from an arbitrary location. This can be used to load a malicious, serialized Python object to execute code within the context of the target application. This exploit supports two techniques by which the payload can be loaded, depending on whether or not credentials are specified. If valid credentials are provided, Metasploit will login to pgAdmin and upload a payload object using pgAdmin's file management plugin. Once uploaded, this payload is executed via the path traversal before being deleted using the file management plugin. This technique works for both Linux and Windows targets. If no credentials are provided, Metasploit will start an SMB server and attempt to trigger loading the payload via a UNC path. This technique only works for Windows targets. For Windows 10 v1709 (Redstone 3) and later, it also requires that insecure outbound g...

Ubuntu Security Notice 6725-2 - Chih-Yen Chang discovered that the KSMBD implementation in the Linux kernel did not properly validate certain data structure fields when parsing lease contexts, leading to an out-of-bounds read vulnerability. A remote attacker could use this to cause a denial of service or possibly expose sensitive information. Quentin Minster discovered that a race condition existed in the KSMBD implementation in the Linux kernel, leading to a use-after-free vulnerability. A remote attacker could use this to cause a denial of service or possibly execute arbitrary code.

Ubuntu Security Notice 6724-2 - Pratyush Yadav discovered that the Xen network backend implementation in the Linux kernel did not properly handle zero length data request, leading to a null pointer dereference vulnerability. An attacker in a guest VM could possibly use this to cause a denial of service. It was discovered that the Habana's AI Processors driver in the Linux kernel did not properly initialize certain data structures before passing them to user space. A local attacker could use this to expose sensitive information.