CVE-2021-26731
Lanner Inc IAC-AST2500A Command Injection and Stack-Based Buffer Overflows
Description
Command injection and multiple stack-based buffer overflows vulnerabilities in the modifyUserb_func function of spx_restservice allow an authenticated attacker to execute arbitrary code with the same privileges as the server user (root). 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 :
Sept. 30, 2024, 3:15 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2021-26731
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.
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-2021-26731.
| 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-2021-26731/ | 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-2021-26731 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-26731 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]
Sep. 30, 2024
Action Type Old Value New Value Changed Description Command injection and multiple stack-based buffer overflows vulnerabilities in the modifyUserb_func function of spx_restservice allow an attacker to execute arbitrary code with the same privileges as the server user (root). This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0. Command injection and multiple stack-based buffer overflows vulnerabilities in the modifyUserb_func function of spx_restservice allow an authenticated attacker to execute arbitrary code with the same privileges as the server user (root). This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0. -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
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-2021-26731/ No Types Assigned https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-26731/ 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-2021-26731.json [Third Party Advisory] Removed Reference https://www.nozominetworks.com/labs/vulnerability-advisories/CVE-2021-26731/ [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-2021-26731/ [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:H/I:H/A:H Changed Reference Type https://www.nozominetworks.com/labs/vulnerability-advisories/CVE-2021-26731/ No Types Assigned https://www.nozominetworks.com/labs/vulnerability-advisories/CVE-2021-26731/ Broken Link Added Reference https://github.com/CVEProject/cvelist/blob/master/2021/26xxx/CVE-2021-26731.json [Third Party Advisory] Added CWE NIST CWE-787 Added CWE NIST CWE-77 Added CPE Configuration AND OR *cpe:2.3:o:lannerinc:iac-ast2500a_firmware:1.10.0:*:*:*:*:*:*:* OR cpe:2.3:h:lannerinc:iac-ast2500a:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-26731 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-26731
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.21 }} -0.03%
score
0.59182
percentile