9.8
CRITICAL
CVE-2020-10823
Draytek Vigor3900, Vigor2960, Vigor300B HTTP Var Parameter Stack Buffer Overflow
Description

A stack-based buffer overflow in /cgi-bin/activate.cgi through var parameter on Draytek Vigor3900, Vigor2960, and Vigor300B devices before 1.5.1 allows remote attackers to achieve code execution via a remote HTTP request (issue 1 of 3).

INFO

Published Date :

March 26, 2020, 5:15 p.m.

Last Modified :

Nov. 21, 2024, 4:56 a.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2020-10823 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 Draytek vigor2960_firmware
2 Draytek vigor300b_firmware
3 Draytek vigor3900_firmware
4 Draytek vigor2960
5 Draytek vigor300b
6 Draytek vigor3900
References to Advisories, Solutions, and Tools

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-2020-10823 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-10823 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 af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://slashd.ga/2020/03/draytek-vulnerabilities/
    Added Reference https://www.draytek.com/about/security-advisory/vigor3900-/-vigor2960-/-vigor300b-stack-based-buffer-overflow-vulnerability/
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Jun. 23, 2020

    Action Type Old Value New Value
    Added Reference https://www.draytek.com/about/security-advisory/vigor3900-/-vigor2960-/-vigor300b-stack-based-buffer-overflow-vulnerability/ [No Types Assigned]
  • Initial Analysis by [email protected]

    Mar. 31, 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://slashd.ga/2020/03/draytek-vulnerabilities/ No Types Assigned https://slashd.ga/2020/03/draytek-vulnerabilities/ Exploit, Third Party Advisory
    Added CWE NIST CWE-787
    Added CPE Configuration AND OR *cpe:2.3:o:draytek:vigor300b_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.5.1 OR cpe:2.3:h:draytek:vigor300b:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:draytek:vigor3900_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.5.1 OR cpe:2.3:h:draytek:vigor3900:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:draytek:vigor2960_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.5.1 OR cpe:2.3:h:draytek:vigor2960:-:*:*:*:*:*:*:*
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-2020-10823 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-2020-10823 weaknesses.

Exploit Prediction

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

1.12 }} -2.47%

score

0.84381

percentile

CVSS31 - Vulnerability Scoring System
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