PT-2021-21953 · Amazon · Amazon Workspaces

David Yesland · Published 2021-09-21 · Updated 2021-10-01 · CVE-2021-38112

Positive Technologies (AI Summary)

CVSS v2.0

9.3

High

Base vector

AV:N/AC:M/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions: Amazon AWS WorkSpaces client versions 3.0.10 through 3.1.8

Description: The issue is related to argument injection in the workspaces:// URI handler, which can lead to remote code execution due to the Chromium Embedded Framework (CEF) --gpu-launcher argument.

Recommendations: For Amazon AWS WorkSpaces client versions 3.0.10 through 3.1.8, update to version 3.1.9 to resolve the issue. As a temporary workaround, consider restricting access to the workspaces:// URI handler until the update is applied.

Exploit

Fix

RCE

Argument Injection

Weakness Enumeration

CWE-88

Related Identifiers

CVE-2021-38112

Affected Products

Amazon Workspaces

References · 12

• 🔥 https://rhinosecuritylabs.com/aws/cve-2021-38112-aws-workspaces-rce · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-38112 · Security Note
• https://docs.aws.amazon.com/workspaces/latest/userguide/amazon-workspaces-windows-client.html#windows-release-notes · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-38112 · Vendor Advisory
• https://t.me/cvenotify/21673 · Telegram Post
• https://t.me/rnetsec/15704 · Telegram Post
• https://t.me/secharvester/11508 · Telegram Post
• https://t.me/cibsecurity/29211 · Telegram Post
• https://t.me/cybersecuritytechnologies/4358 · Telegram Post
• https://t.me/defcon_news/85529 · Telegram Post
• https://t.me/cybersecuritytechnologies/4416 · Telegram Post
• https://t.me/sysadm_in_channel/3408 · Telegram Post