CVE-2021-26730 | Nozomi Networks Labs

Summary

A stack-based buffer overflow vulnerability in a subfunction of the Login_handler_func function of spx_restservice allows an attacker to execute arbitrary code with the same privileges as the server user (root).

Impact

An un-authenticated remote attacker would be able to execute arbitrary code with root privileges on the BMC and, potentially, abuse it to also compromise the managed host.

Issue Date

October 21, 2022

Affects

The vulnerability affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0

CVE Name

CVE-2021-26730

CVSS Details

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS Score

10.0

Solution

Updated BMC firmware versions that fix the issue are available from Lanner technical support

Mitigations

Acknowledgements

Andrea Palanca of Nozomi Networks

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