#vulnerability

Cybersecurity researchers have shed light on a novel Linux kernel exploitation technique dubbed SLUBStick that could be exploited to elevate a limited heap vulnerability to an arbitrary memory read-and-write primitive. "Initially, it exploits a timing side-channel of the allocator to perform a cross-cache attack reliably," a group of academics from the Graz University of Technology said [PDF]. "

You're only as strong as your weakest security link.

Cybersecurity researchers have disclosed details of security flaws in the Roundcube webmail software that could be exploited to execute malicious JavaScript in a victim's web browser and steal sensitive information from their account under specific circumstances. "When a victim views a malicious email in Roundcube sent by an attacker, the attacker can execute arbitrary JavaScript in the victim's

**What privileges could be gained by an attacker who successfully exploited this vulnerability?** An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.

The 23rd edition of Microsoft’s BlueHat security conference will be hosted by the Microsoft Security Response Center (MSRC) at the Redmond, WA corporate campus, October 29 and 30, 2024. BlueHat brings together security researchers and responders from both inside and outside of Microsoft, who come together as peers to exchange ideas, experiences, and best practices, all in the interest of creating a safer and more secure world for everyone.

**According to the CVSS metric, privileges required is low (PR:L). What does that mean for this vulnerability?** The attacker must have permissions to access the target's System directory to plant the malicious folder that would be used as part of the exploitation.

While still under development, the malware contains Turkish-language filenames, can record the screen and keystrokes, and inject custom overlays to steal passwords and sensitive data.

Protections like Windows Smart App Control are useful but susceptible to attacks that allow threat actors initial access to an environment without triggering any alerts.

### Summary A potential mXSS vulnerability exists in Qwik for versions up to 1.6.0. ### Details Qwik improperly escapes HTML on server-side rendering. It converts strings according to the following rules: https://github.com/QwikDev/qwik/blob/v1.5.5/packages/qwik/src/core/render/ssr/render-ssr.ts#L1182-L1208 - If the string is an attribute value: - `"` -> `&quot;` - `&` -> `&amp;` - Other characters -> No conversion - Otherwise: - `<` -> `&lt;` - `>` -> `&gt;` - `&` -> `&amp;` - Other characters -> No conversion It sometimes causes the situation that the final DOM tree rendered on browsers is different from what Qwik expects on server-side rendering. This may be leveraged to perform XSS attacks, and a type of the XSS is known as mXSS (mutation XSS). ## PoC A vulnerable component: ```javascript import { component$ } from "@builder.io/qwik"; import { useLocation } from "@builder.io/qwik-city"; export default component$(() => { // user input cons...

At least two Russian nationals serving prison sentences for cybercrime offenses, Vladislav Klyushin and Roman Seleznev, were released as part of the landmark prisoner swap.