PT-2022-23004 · Insyde · Insydeh2O

Published 2022-09-21 · Updated 2023-08-08 · CVE-2022-35896

Positive Technologies (AI Summary)

CVSS v3.1

6.0

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Insyde InsydeH2O versions 5.0 through 5.5

Description An issue in the SMM driver (SMRAM) was discovered, allowing an attacker to dump SMRAM contents via the software SMI provided by the FvbServicesRuntimeDxe driver. This leads to information disclosure. The FvbServicesRuntimeDxe driver is used to read the contents of SMRAM.

Recommendations For Insyde InsydeH2O versions 5.0 through 5.5, consider disabling the FvbServicesRuntimeDxe driver as a temporary workaround to minimize the risk of exploitation. Restrict access to the SMRAM contents to prevent information disclosure. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2022-35896

Affected Products

Insydeh2O

References · 7

• 🔥 https://binarly.io/advisories/BRLY-2022-025/index.html · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2022-35896 · Security Note
• https://osv.dev/vulnerability/CVE-2022-35896 · Vendor Advisory
• https://insyde.com/security-pledge/SA-2022034 · Vendor Advisory
• https://insyde.com/security-pledge · Vendor Advisory
• https://t.me/cibsecurity/50251 · Telegram Post
• https://t.me/cvenotify/36646 · Telegram Post