PT-2022-9790 · Lanner · Iac-Ast2500A

Andrea Palanca · Published 2022-10-24 · Updated 2022-12-03 · CVE-2021-26728

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 Command injection and stack-based buffer overflow vulnerabilities in the KillDupUsr func function of spx restservice allow 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 KillDupUsr func function in spx restservice until a patch is available to prevent potential exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Memory Corruption

Code Injection

Stack Overflow

Command Injection

Weakness Enumeration

CWE-787

CWE-94

CWE-121

CWE-77

Related Identifiers

CVE-2021-26728

Affected Products

Iac-Ast2500A

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2021-26728 · Security Note
• https://osv.dev/vulnerability/CVE-2021-26728 · Vendor Advisory
• https://t.me/cvenotify/39074 · Telegram Post
• https://t.me/cibsecurity/51990 · Telegram Post
• https://nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1 · Note
• https://nozominetworks.com/labs/vulnerability-advisories/cve-2021-26728 · Note