6.5
MEDIUM
CVE-2021-26732
Lanner Inc IAC-AST2500A BMC Access Control Vulnerability
Description

A broken access control vulnerability in the First_network_func function of spx_restservice allows an attacker to arbitrarily change the network configuration of the BMC. This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0.

INFO

Published Date :

Oct. 24, 2022, 2:15 p.m.

Last Modified :

June 26, 2023, 5:47 p.m.

Remotely Exploitable :

Yes !

Impact Score :

2.5

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2021-26732 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Lannerinc iac-ast2500a_firmware
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-26732.

URL Resource
https://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/ Third Party Advisory
https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-26732/ Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-26732 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-26732 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Reanalysis by [email protected]

    Jun. 26, 2023

    Action Type Old Value New Value
    Removed CWE NIST CWE-862
    Added CWE NIST NVD-CWE-Other
  • Modified Analysis by [email protected]

    Feb. 03, 2023

    Action Type Old Value New Value
    Changed Reference Type https://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/ No Types Assigned https://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/ Third Party Advisory
    Changed Reference Type https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-26732/ No Types Assigned https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-26732/ Third Party Advisory
  • CVE Modified by [email protected]

    Dec. 01, 2022

    Action Type Old Value New Value
    Removed Reference https://github.com/CVEProject/cvelist/blob/master/2021/26xxx/CVE-2021-26732.json [Third Party Advisory]
    Removed Reference https://www.nozominetworks.com/labs/vulnerability-advisories/CVE-2021-26732/ [Broken Link]
    Added Reference https://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/ [No Types Assigned]
    Added Reference https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-26732/ [No Types Assigned]
  • Initial Analysis by [email protected]

    Oct. 24, 2022

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
    Changed Reference Type https://www.nozominetworks.com/labs/vulnerability-advisories/CVE-2021-26732/ No Types Assigned https://www.nozominetworks.com/labs/vulnerability-advisories/CVE-2021-26732/ Broken Link
    Added Reference https://github.com/CVEProject/cvelist/blob/master/2021/26xxx/CVE-2021-26732.json [Third Party Advisory]
    Added CWE NIST CWE-862
    Added CPE Configuration AND OR *cpe:2.3:o:lannerinc:iac-ast2500a_firmware:1.10.0:*:*:*:*:*:*:* OR cpe:2.3:h:lannerinc:iac-ast2500a:-:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-26732 is associated with the following CWEs:

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.06 }} 0.00%

score

0.25554

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability