9.8
CRITICAL
CVE-2020-24355
Zyxel VMG5313-B30B Privilege Escalation Vulnerability
Description

Zyxel VMG5313-B30B router on firmware 5.13(ABCJ.6)b3_1127, and possibly older versions of firmware are affected by insecure permissions which allows regular and other users to create new users with elevated privileges. This is done by changing "FirstIndex" field in JSON that is POST-ed during account creation. Similar may also be possible with account deletion.

INFO

Published Date :

Sept. 2, 2020, 12:15 p.m.

Last Modified :

Sept. 11, 2020, 4:17 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2020-24355 has a 1 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-2020-24355 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 Zyxel vmg5313-b30b_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-2020-24355.

URL Resource
https://blog.somegeneric.ninja/Zyxel_VMG5153_B30B Exploit Third Party Advisory
https://blog.somegeneric.ninja/Zyxel_VMG5153_B30B_part2 Exploit Third Party Advisory
https://www.zyxel.com/support/security_advisories.shtml 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).

CVE Data Analysis, CVE Monitor, CVE EXP Prediction Based on Deep Learning. 1999-2020年存量CVE数据分析、监控CVE增量更新、基于深度学习的CVE EXP预测和自动化推送

Python

Updated: 2 months, 3 weeks ago
176 stars 24 fork 24 watcher
Born at : June 15, 2020, 2:56 p.m. This repo has been linked 692 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-2020-24355 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-24355 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]

    Sep. 11, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:C/I:C/A:C)
    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://blog.somegeneric.ninja/Zyxel_VMG5153_B30B No Types Assigned https://blog.somegeneric.ninja/Zyxel_VMG5153_B30B Exploit, Third Party Advisory
    Changed Reference Type https://blog.somegeneric.ninja/Zyxel_VMG5153_B30B_part2 No Types Assigned https://blog.somegeneric.ninja/Zyxel_VMG5153_B30B_part2 Exploit, Third Party Advisory
    Changed Reference Type https://www.zyxel.com/support/security_advisories.shtml No Types Assigned https://www.zyxel.com/support/security_advisories.shtml Vendor Advisory
    Added CWE NIST CWE-732
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vmg5313-b30b_firmware:*:*:*:*:*:*:*:* versions up to (including) 5.13\(abcj.6\)b3_1127 OR cpe:2.3:h:zyxel:vmg5313-b30b:-:*:*:*:*:*:*:*
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.
Exploit Prediction

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

0.99 }} 0.16%

score

0.83445

percentile

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