PT-2020-17361 · Microsoft · Azure Sphere

Published 2020-12-22 · Updated 2021-07-21 · CVE-2020-35609

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Microsoft Azure Sphere version 20.05

Description A denial-of-service issue exists in the asynchronous ioctl functionality. This can be triggered by a sequence of specially crafted ioctl calls, leading to a denial of service. An attacker can exploit this by writing shellcode.

Recommendations For Microsoft Azure Sphere version 20.05, consider restricting access to the asynchronous ioctl functionality until a patch is available. As a temporary workaround, avoid using the vulnerable ioctl calls to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Infinite Loop

Weakness Enumeration

CWE-835

Related Identifiers

CVE-2020-35609

Affected Products

Azure Sphere

References · 5

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2020-1117 · Exploit
• https://osv.dev/vulnerability/CVE-2020-35609 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-35609 · Security Note
• https://t.me/cvenotify/7611 · Telegram Post
• https://t.me/cibsecurity/21183 · Telegram Post