Vulnerability identifier: #VU47398

Vulnerability risk: Low

CVSSv3.1: 6.2 [CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-908

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Azure Sphere
Server applications / SCADA systems

Vendor: Microsoft

Description

The vulnerability allows a local attacker to bypass certain security restrictions.

The vulnerability exists due to usage of uninitialized resources in the Littlefs filesystem functionality. A local attacker can use a specially crafted set of syscalls, trigger uninitialized usage of resources and gain access to sensitive information on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Azure Sphere: 20.06

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External links
http://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1130

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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.