PT-2022-9789 · Lanner · Lanner Inc Iac-Ast2500A

Andrea Palanca · Published 2022-10-24 · Updated 2022-12-03 · CVE-2021-26727

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Lanner Inc IAC-AST2500A standard firmware version 1.10.0

Description The issue is related to multiple command injections and stack-based buffer overflows vulnerabilities in the SubNet handler func function of spx restservice. This allows an attacker to execute arbitrary code with the same privileges as the server user, which is root.

Recommendations For Lanner Inc IAC-AST2500A standard firmware version 1.10.0, consider disabling the SubNet handler func function until a patch is available to prevent exploitation of the command injections and stack-based buffer overflows vulnerabilities.

Fix

Memory Corruption

Code Injection

Stack Overflow

Command Injection

Weakness Enumeration

CWE-787

CWE-94

CWE-121

CWE-77

Related Identifiers

CVE-2021-26727

Affected Products

Lanner Inc Iac-Ast2500A

References · 5

• https://osv.dev/vulnerability/CVE-2021-26727 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-26727 · Security Note
• https://nozominetworks.com/labs/vulnerability-advisories/cve-2021-26727 · Note
• https://nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1 · Note
• https://t.me/cvenotify/39071 · Telegram Post