Today’s browsers are almost operating systems unto themselves. They can run software programs and encrypt files. These capabilities, combined with the browser’s access to the host computer’s files – including ones in the cloud, shared folders and external drives – via the File System Access API creates a new opportunity for ransomware.
Imagine you want to edit photos on a benign-looking free online photo editing tool. When you upload the photos for editing, any hackers who control the malicious editing tool can access the files on your computer via your browser. The hackers would gain access to the folder you are uploading from and all subfolders.
Read more…
Source: MSN News
Related:
- How Outlook notification sounds can lead to zero-click exploits
December 21, 2023
An Akamai researcher has found two vulnerabilities in Windows that can be combined to achieve a full, zero-click remote code execution (RCE) in Outlook. Both vulnerabilities were responsibly disclosed to Microsoft and addressed in the August 2023 and October 2023 patch Tuesdays, so the researcher felt it was no problem to disclose their findings. The first ...
- Sneaky GPU.zip technique steals sensitive information from your graphics card
December 21, 2023
Researchers from four top American universities have uncovered a new way for threat actors to sneakily access visual information from your graphics card while you’re online and browsing certain websites. The researchers call this threat “GPU.zip,” because it takes advantage of the hidden data compression methods used by modern graphics processing units (GPUs) to leak visual ...
- Threat Actors Exploit CVE-2017-11882 To Deliver Agent Tesla
December 19, 2023
First discovered in 2014, Agent Tesla is an advanced keylogger with features like clipboard logging, screen keylogging, screen capturing, and extracting stored passwords from different web browsers. Recently, Zscaler ThreatLabz detected a threat campaign where threat actors leverage CVE-2017-11882 XLAM to spread Agent Tesla to users on vulnerable versions of Microsoft Office. The CVE-2017-11882 vulnerability is ...
- A Log4Shell Retrospective – Overblown and Exaggerated
December 18, 2023
Two years ago, CVE-2021-44228 sent the security industry into a panic. The vulnerability, better known as Log4Shell, had security professionals working overtime through the holidays hunting down vulnerable log4j libraries. At the time, there was fear and confusion around what software was affected, which were exploitable, and where attackers would attack next. The reality was that ...
- Coverage Advisory for CVE-2023-50164: Apache Struts Path Traversal and File Upload Vulnerability
December 18, 2023
CVE-2023-50164 is a path traversal flaw that allows a remote attacker to upload malicious files to vulnerable servers. After successful exploitation, an attacker can achieve Remote Code Execution (RCE) on the target server. An attacker exploiting such a vulnerability can access, upload, or modify important files, steal sensitive information, disrupt critical services, or move laterally on ...
- Critical RCE vulnerability discovered in Perforce Helix Core Server
December 15, 2023
Microsoft discovered, responsibly disclosed, and helped remediate four vulnerabilities that could be remotely exploited by unauthenticated attackers in Perforce Helix Core Server (“Perforce Server”), a source code management platform largely used in the videogame industry and by multiple organizations spanning government, military, technology, retail, and more. Perforce Server customers are strongly urged to update to version ...