#VU87965 Security features bypass in WinRAR - CVE-2024-30370

Vulnerability identifier: #VU87965

Vulnerability risk: Medium

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-30370

CWE-ID: CWE-254

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
WinRAR
Client/Desktop applications / Software for archiving

Vendor: RARLAB

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to an error within the archive extraction functionality. A remote attacker can use a specially crafted archive to bypass the Mark-Of-The-Web protection mechanism and potentially compromise the affected system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

WinRAR: 6.00 - 7.00 beta 4

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External links
https://www.zerodayinitiative.com/advisories/ZDI-24-357/
https://www.rarlab.com/rarnew.htm#27.%20Busgs%20fixed

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.