PT-2022-9791 · Lanner · Iac-Ast2500A

Andrea Palanca · Published 2022-10-24 · Updated 2022-12-03 · CVE-2021-26729

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 command injection and multiple stack-based buffer overflows vulnerabilities in the Login handler func function of spx restservice, allowing 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 Login handler func function until a patch is available to prevent exploitation. Restrict access to the spx restservice to minimize the risk of 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-2021-26729

Affected Products

Iac-Ast2500A

References · 6

• https://osv.dev/vulnerability/CVE-2021-26729 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-26729 · Security Note
• https://nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1 · Note
• https://t.me/cvenotify/39072 · Telegram Post
• https://nozominetworks.com/labs/vulnerability-advisories/cve-2021-26729 · Note
• https://t.me/cibsecurity/51988 · Telegram Post