“ demonstrate the additional risk associated with such marketplaces,” Bräunlein said. PLING STORE CODEThe report comes less than a month after severe security weaknesses were uncovered in several popular Visual Studio Code extensions that could enable attackers to compromise local machines as well as build and deployment systems through a developer’s integrated development environment, ultimately paving the way for supply-chain attacks. In light of the fact that the RCE flaw associated with the PlingStore remains unaddressed as yet, it’s recommended not to run the Electron application until a fix is in place. 24, with KDE Project and GNOME Security issuing patches for the issues following disclosure. The Berlin-based cybersecurity firm noted that the flaws were reported to the respective project maintainers on Feb. Developers of such applications must put in a high level of scrutiny to ensure their security.What’s more, a similar XSS flaw uncovered in the GNOME Shell Extensions marketplace could be leveraged to target the victim’s computer by issuing malicious commands to the Gnome Shell Integration browser extension and even backdoor published extensions. a missing origin check) can lead to severe consequences (drive-by RCE from any browser with the vulnerable application running in the background). In this environment, even relatively small vulnerabilities (e.g. demonstrate the additional risk associated with such marketplaces. Unfortunately, this is not the only situation in which an unpatched vulnerability in Linux Pling can become dangerous as a similar XSS flaw was uncovered in the GNOME Shell Extensions marketplace. The XSS gets triggered inside the Pling app while it’s running in the background allowing the JavaScript code to establish a connection to the local WebSocket server that’s used to listen to messages from the app, and also to send messages in order to execute arbitrary native code by downloading and executing an. It all starts with a user that visits a malicious website using the browser. As it turns out, that mechanism can be exploited by any website to run arbitrary native code while the PlingStore app is open in the background. PLING STORE INSTALLThe concerning fact is that this unpatched vulnerability in Linux Pling can allow for a supply-chain attack XSS worm in which a JavaScript payload could be exploited by an adversary to upload versions of software that are containing trojans and also to be able to tweak the metadata of a victim’s listing in order to include and propagate the attack code.Īs the application can install other applications, it has another built-in mechanism to execute code on the level. This specific unpatched vulnerability in Linux Pling is stemming from the manner in which the store’s product listings page parses HTML or embedded media fields, therefore potentially allowing an attacker to inject malicious JavaScript code that could result in arbitrary code execution. PlingStore is an Installer and Content Management App for OCS-compatible websites like, ,, that allows users to download, install and apply desktop themes, icon themes, wallpapers, or mouse cursors directly under various desktop environments using the “Install”-button. Some of the Pling-based app stores impacted by the flaw are, ,, , and. The native PlingStore application is affected by an RCE vulnerability, which can be triggered from any website while the app is running. Linux marketplaces that are based on the Pling platform are vulnerable to a wormable with the potential for a supply-chain attack. PLING STORE FREEThe newly discovered unpatched vulnerability in Linux Pling is affecting Pling-based free and open-source software (FOSS) marketplaces for the Linux platform and has the potential to be abused in order to stage supply-chain attacks and achieve remote code execution (RCE).
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