#VU52693 Incorrect default permissions in PCManager - CVE-2021-3451

Vulnerability identifier: #VU52693

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-3451

CWE-ID: CWE-276

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
PCManager
Other software / Other software solutions

Vendor: Lenovo

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to incorrect default permissions for files and folders that are set by the application. A local user send a specially crafted request and cause a denial of service condition.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

PCManager: before 3.0.400.3252

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External links
https://iknow.lenovo.com.cn/detail/dc_196156.html

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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