9.8
CRITICAL
CVE-2020-28877
TP-Link WR/WDR Buffer Overflow
Description

Buffer overflow in in the copy_msg_element function for the devDiscoverHandle server in the TP-Link WR and WDR series, including WDR7400, WDR7500, WDR7660, WDR7800, WDR8400, WDR8500, WDR8600, WDR8620, WDR8640, WDR8660, WR880N, WR886N, WR890N, WR890N, WR882N, and WR708N.

INFO

Published Date :

Nov. 20, 2020, 4:15 p.m.

Last Modified :

Dec. 3, 2020, 5:29 p.m.

Source :

[email protected]

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2020-28877 has a 3 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-2020-28877 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 Tp-link wdr7400_firmware
2 Tp-link wdr7500_firmware
3 Tp-link wdr7660_firmware
4 Tp-link wdr7800_firmware
5 Tp-link wdr8400_firmware
6 Tp-link wdr8500_firmware
7 Tp-link wdr8600_firmware
8 Tp-link wdr8620_firmware
9 Tp-link wdr8640_firmware
10 Tp-link wdr8660_firmware
11 Tp-link wr880n_firmware
12 Tp-link wr886n_firmware
13 Tp-link wr890n_firmware
14 Tp-link wr882n_firmware
15 Tp-link wr708n_firmware
: Total Affected Vendor : 1 | Products : 15
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-2020-28877.

URL Resource
https://exchange.xforce.ibmcloud.com/vulnerabilities/192112 Third Party Advisory
https://github.com/peanuts62/TP-Link-poc Broken Link

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).

Profile Photo
77clearlove/TP-LINK-POC_2

None

Updated: 3 years ago
2 stars 0 fork 0 watcher
Born at : April 22, 2021, 7:27 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
77clearlove/TP-Link-poc

None

Updated: 7 months, 1 week ago
4 stars 2 fork 2 watcher
Born at : April 22, 2021, 7:21 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
peanuts62/IOT_CVE

poc of ImageMagick hangs

Updated: 2 years, 4 months ago
2 stars 2 fork 2 watcher
Born at : April 9, 2020, 3:39 a.m. This repo has been linked 9 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-2020-28877 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-28877 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. 03, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    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://github.com/peanuts62/TP-Link-poc No Types Assigned https://github.com/peanuts62/TP-Link-poc Broken Link
    Added Reference https://exchange.xforce.ibmcloud.com/vulnerabilities/192112 [Third Party Advisory]
    Added CWE NIST CWE-120
    Added CPE Configuration AND OR *cpe:2.3:o:tp-link:wdr7400_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:tp-link:wdr7400:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:tp-link:wdr7500_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:tp-link:wdr7500:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:tp-link:wdr7660_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:tp-link:wdr7660:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:tp-link:wdr7800_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:tp-link:wdr7800:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:tp-link:wdr8400_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:tp-link:wdr8400:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:tp-link:wdr8500_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:tp-link:wdr8500:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:tp-link:wdr8600_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:tp-link:wdr8600:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:tp-link:wdr8620_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:tp-link:wdr8620:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:tp-link:wdr8640_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:tp-link:wdr8640:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:tp-link:wdr8660_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:tp-link:wdr8660:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:tp-link:wr880n_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:tp-link:wr880n:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:tp-link:wr886n_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:tp-link:wr886n:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:tp-link:wr890n_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:tp-link:wr890n:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:tp-link:wr890n_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:tp-link:wr890n:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:tp-link:wr882n_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:tp-link:wr882n:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:tp-link:wr708n_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:tp-link:wr708n:-:*:*:*:*:*:*:*
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-2020-28877 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-2020-28877 weaknesses.

CAPEC-8: Buffer Overflow in an API Call Buffer Overflow in an API Call CAPEC-9: Buffer Overflow in Local Command-Line Utilities Buffer Overflow in Local Command-Line Utilities CAPEC-10: Buffer Overflow via Environment Variables Buffer Overflow via Environment Variables CAPEC-14: Client-side Injection-induced Buffer Overflow Client-side Injection-induced Buffer Overflow CAPEC-24: Filter Failure through Buffer Overflow Filter Failure through Buffer Overflow CAPEC-42: MIME Conversion MIME Conversion CAPEC-44: Overflow Binary Resource File Overflow Binary Resource File CAPEC-45: Buffer Overflow via Symbolic Links Buffer Overflow via Symbolic Links CAPEC-46: Overflow Variables and Tags Overflow Variables and Tags CAPEC-47: Buffer Overflow via Parameter Expansion Buffer Overflow via Parameter Expansion CAPEC-67: String Format Overflow in syslog() String Format Overflow in syslog() CAPEC-92: Forced Integer Overflow Forced Integer Overflow CAPEC-100: Overflow Buffers Overflow Buffers
Exploit Prediction

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

0.22 }} 0.06%

score

0.59337

percentile

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