6.1
MEDIUM
CVE-2021-40154
NXP LPC55S69 USB Buffer Over-Read Vulnerability
Description

NXP LPC55S69 devices before A3 have a buffer over-read via a crafted wlength value in a GET Descriptor Configuration request during use of USB In-System Programming (ISP) mode. This discloses protected flash memory.

INFO

Published Date :

Dec. 1, 2021, 3:15 p.m.

Last Modified :

Dec. 6, 2021, 7:28 p.m.

Remotely Exploitable :

No

Impact Score :

4.2

Exploitability Score :

1.8
Public PoC/Exploit Available at Github

CVE-2021-40154 has a 2 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2021-40154 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 Nxp lpc55s69jbd100_firmware
2 Nxp lpc55s69jbd64_firmware
3 Nxp lpc55s69jev98_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-2021-40154.

URL Resource
https://github.com/Xen1thLabs-AE/CVE-2021-40154 Third Party Advisory
https://www.darkmatter.ae/xen1thlabs/published-advisories/ Broken Link 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).

None

Updated: 4 months, 4 weeks ago
8 stars 1 fork 1 watcher
Born at : June 21, 2022, 7:45 a.m. This repo has been linked 943 different CVEs too.

POC to test the BootROM vulnerability found in LPC55S69 and K82 Series

Python

Updated: 4 months, 2 weeks ago
5 stars 3 fork 3 watcher
Born at : Nov. 24, 2021, 1:34 a.m. This repo has been linked 1 different CVEs too.

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

The following list is the news that have been mention CVE-2021-40154 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-40154 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
  • Initial Analysis by [email protected]

    Dec. 06, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:N/A:N)
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
    Changed Reference Type https://github.com/Xen1thLabs-AE/CVE-2021-40154 No Types Assigned https://github.com/Xen1thLabs-AE/CVE-2021-40154 Third Party Advisory
    Changed Reference Type https://www.darkmatter.ae/xen1thlabs/published-advisories/ No Types Assigned https://www.darkmatter.ae/xen1thlabs/published-advisories/ Broken Link, Third Party Advisory
    Added CWE NIST CWE-125
    Added CPE Configuration AND OR *cpe:2.3:o:nxp:lpc55s69jbd100_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:nxp:lpc55s69jbd100:0a:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:nxp:lpc55s69jbd100_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:nxp:lpc55s69jbd100:1b:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:nxp:lpc55s69jbd64_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:nxp:lpc55s69jbd64:0a:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:nxp:lpc55s69jbd64_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:nxp:lpc55s69jbd64:1b:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:nxp:lpc55s69jev98_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:nxp:lpc55s69jev98:0a:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:nxp:lpc55s69jev98_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:nxp:lpc55s69jev98:1b:*:*:*:*:*:*:*
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-2021-40154 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-2021-40154 weaknesses.

Exploit Prediction

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

0.04 }} 0.00%

score

0.10359

percentile

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