8.2
HIGH
CVE-2020-27890
Texas Instruments CC2538 Zigbee Remote Code Execution Vulnerability
Description

The Zigbee protocol implementation on Texas Instruments CC2538 devices with Z-Stack 3.0.1 does not properly process a ZCL Write Attributes No Response message. It crashes in zclParseInWriteCmd() and does not update the specific attribute's value.

INFO

Published Date :

Oct. 27, 2020, 9:15 p.m.

Last Modified :

July 21, 2021, 11:39 a.m.

Remotely Exploitable :

Yes !

Impact Score :

4.2

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2020-27890 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-2020-27890 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 Ti z-stack
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-2020-27890.

URL Resource
https://github.com/zigbeeprotocol/Z-Fuzzer/tree/master/vulnerabilities Third Party Advisory
https://www.ti.com/tool/Z-STACK Product Vendor 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).

A fuzzing platform for Zigbee protocol implementations

Python CSS JavaScript HTML Batchfile C

Updated: 8 months ago
3 stars 3 fork 3 watcher
Born at : May 20, 2022, 11:59 p.m. This repo has been linked 3 different CVEs too.

A fuzzing platform of Zigbee protocol implementations

Batchfile Python CSS JavaScript HTML C PowerShell

Updated: 8 months ago
1 stars 0 fork 0 watcher
Born at : Jan. 17, 2022, 10:01 a.m. This repo has been linked 3 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-2020-27890 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-27890 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
  • CWE Remap by [email protected]

    Jul. 21, 2021

    Action Type Old Value New Value
    Changed CWE CWE-20 NVD-CWE-noinfo
  • Initial Analysis by [email protected]

    Nov. 02, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
    Changed Reference Type https://github.com/zigbeeprotocol/Z-Fuzzer/tree/master/vulnerabilities No Types Assigned https://github.com/zigbeeprotocol/Z-Fuzzer/tree/master/vulnerabilities Third Party Advisory
    Changed Reference Type https://www.ti.com/tool/Z-STACK No Types Assigned https://www.ti.com/tool/Z-STACK Product, Vendor Advisory
    Added CWE NIST CWE-20
    Added CPE Configuration AND OR *cpe:2.3:a:ti:z-stack:3.0.1:*:*:*:*:*:*:* OR cpe:2.3:h:ti:cc2538:-:*:*:*:*:*:*:*
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-2020-27890 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-2020-27890 weaknesses.

Exploit Prediction

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

0.12 }} 0.01%

score

0.44642

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
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Scope
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