PT-2021-14775 · Iobit · Iobit Advanced Systemcare Ultimate

Cory Duplantis · Published 2021-08-05 · Updated 2022-07-29 · CVE-2021-21790

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions IOBit Advanced SystemCare Ultimate version 14.2.0.220

Description An information disclosure issue exists in the way the driver handles Privileged I/O read requests. A specially crafted I/O request packet (IRP) can lead to privileged reads in the context of a driver, resulting in sensitive information disclosure from the kernel. The IN instruction can read two bytes from the given I/O device, potentially leaking sensitive device data to unprivileged users.

Recommendations For IOBit Advanced SystemCare Ultimate version 14.2.0.220, consider disabling the driver's handling of Privileged I/O read requests as a temporary workaround until a patch is available. Restrict access to sensitive device data to minimize the risk of exploitation.

Exploit

Fix

Weakness Enumeration

CWE-782

Related Identifiers

CVE-2021-21790

Affected Products

Iobit Advanced Systemcare Ultimate

References · 4

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2021-1255 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-21790 · Security Note
• https://osv.dev/vulnerability/CVE-2021-21790 · Vendor Advisory
• https://t.me/cvenotify/18739 · Telegram Post