• WinRAR, our trusted old friend, is currently nursing a high-severity security flaw, known officially as CVE-2023-40477, with a CVSS score of 7.8.
• This flaw allows potential exploitation by threat actors to engage in a bit of “unwanted house partying” or remote code execution on Windows systems.
• The vulnerability descends from the less popular branch of the WinRAR family tree called ‘improper validation’, specifically when processing recovery volumes.
The handy-dandy utility we’ve been relying on since time immemorial, WinRAR, has got a bit of a problem. A high-severity security flaw has crept its way into WinRAR’s figurative house and it could potentially be exploited by a threat actor. In layman’s terms, someone could remotely control your Windows system like a pro DJ at a dodgy house party. Sure, they might leave the room momentarily dazzled, but the cleanup is on you. The flaw is being referred to as CVE-2023-40477 and holds a CVSS score of 7.8, which in the World Cup of computer vulnerabilities, gives it a solid upper-middle position.
This dangerous flaw descends from the deceptively dull-sounding phenomenon known as ‘improper validation’. Specifically, this pest comes out to play during the processing of recovery volumes. Essentially, this problem stems from WinRAR not thoroughly checking user-supplied data before processing it. It’s like that distant uncle at a family event who somehow ends up giving a questionable toast because no one verified his eligibility to a microphone. Only in this case, the toast is a security flaw that could potentially lead to remote code execution.
For those of you in a hurry, here’s the compact version. WinRAR, that old tool you’ve got snoozing in your digital toolbox, has a high-severity security flaw (CVE-2023-40477) with a CVSS score of 7.8. This comes from improper validation while processing recovery volumes and could lead to a potential digital intruder messing with your Windows systems. Let’s hope this validation problem doesn’t become the new ‘Black Sheep of the WinRAR Family’.
Original Article: https://thehackernews.com/2023/08/new-winrar-vulnerability-could-allow.html
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