9.1
CRITICAL
CVE-2024-20521
Cisco Small Business Router Privilege Escalation Vulnerability
Description

A vulnerability in the web-based management interface of Cisco Small Business RV042, RV042G, RV320, and RV325 Routers could allow an authenticated, Administrator-level, remote attacker to execute arbitrary code as the root user. To exploit this vulnerability, an attacker would need to have valid Administrator credentials on the affected device.   This vulnerability is due to improper validation of user-supplied input in the web-based management interface. An attacker could exploit this vulnerability by sending crafted HTTP requests to an affected device. A successful exploit could allow the attacker to execute arbitrary code on the underlying operating system as the root user.

INFO

Published Date :

Oct. 2, 2024, 5:15 p.m.

Last Modified :

Oct. 8, 2024, 1:50 p.m.

Remotely Exploitable :

Yes !

Impact Score :

6.0

Exploitability Score :

2.3
Affected Products

The following products are affected by CVE-2024-20521 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 Cisco rv042_firmware
2 Cisco rv042g_firmware
3 Cisco rv320_firmware
4 Cisco rv325_firmware
5 Cisco small_business_rv_series_router_firmware
6 Cisco rv042
7 Cisco rv042g
8 Cisco rv320
9 Cisco rv325
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-2024-20521.

URL Resource
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sb-rv04x_rv32x_vulns-yJ2OSDhV 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).

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

The following list is the news that have been mention CVE-2024-20521 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2024-20521 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.

  • Initial Analysis by [email protected]

    Oct. 08, 2024

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
    Changed Reference Type https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sb-rv04x_rv32x_vulns-yJ2OSDhV No Types Assigned https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sb-rv04x_rv32x_vulns-yJ2OSDhV Vendor Advisory
    Added CWE NIST CWE-787
    Added CPE Configuration AND OR *cpe:2.3:o:cisco:rv042_firmware:1.0.1.17:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:1.0.2.03:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:1.1.0.09:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:1.1.1.06:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:1.1.1.19:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:1.2.1.13:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:1.2.1.14:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:1.3.1.10:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:1.3.1.12:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:1.3.2.02:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:1.3.12.6-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:1.3.12.19-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:1.3.13.02-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:1.4.2.15:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:1.4.2.17:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:1.4.2.19:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:1.4.2.20:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:1.4.2.22:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:1.5.1.05:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:1.5.1.11:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:1.5.1.13:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:3.0.0.1-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:3.0.0.19-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:3.0.2.01-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:4.0.0.7:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:4.0.2.08-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:4.0.3.03-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:4.0.4.02-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:4.1.0.02-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:4.1.1.01:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:4.2.1.02:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:4.2.2.08:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:4.2.3.03:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:4.2.3.06:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:4.2.3.07:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:4.2.3.08:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:4.2.3.09:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:4.2.3.10:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042_firmware:4.2.3.14:*:*:*:*:*:*:* OR cpe:2.3:h:cisco:rv042:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:cisco:rv042g_firmware:1.0.1.17:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:1.0.2.03:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:1.1.0.09:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:1.1.1.06:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:1.1.1.19:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:1.2.1.13:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:1.2.1.14:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:1.3.1.10:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:1.3.1.12:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:1.3.2.02:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:1.3.12.6-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:1.3.12.19-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:1.3.13.02-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:1.4.2.15:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:1.4.2.17:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:1.4.2.19:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:1.4.2.20:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:1.4.2.22:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:1.5.1.05:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:1.5.1.11:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:1.5.1.13:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:3.0.0.1-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:3.0.0.19-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:3.0.2.01-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:4.0.0.7:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:4.0.2.08-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:4.0.3.03-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:4.0.4.02-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:4.1.0.02-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:4.1.1.01:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:4.2.1.02:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:4.2.2.08:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:4.2.3.03:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:4.2.3.06:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:4.2.3.07:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:4.2.3.08:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:4.2.3.09:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:4.2.3.10:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv042g_firmware:4.2.3.14:*:*:*:*:*:*:* OR cpe:2.3:h:cisco:rv042g:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:cisco:rv320_firmware:1.0.1.17:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:1.0.2.03:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:1.1.0.09:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:1.1.1.06:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:1.1.1.19:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:1.2.1.13:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:1.2.1.14:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:1.3.1.10:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:1.3.1.12:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:1.3.2.02:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:1.3.12.6-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:1.3.12.19-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:1.3.13.02-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:1.4.2.15:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:1.4.2.17:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:1.4.2.19:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:1.4.2.20:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:1.4.2.22:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:1.5.1.05:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:1.5.1.11:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:1.5.1.13:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:3.0.0.1-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:3.0.0.19-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:3.0.2.01-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:4.0.0.7:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:4.0.2.08-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:4.0.3.03-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:4.0.4.02-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:4.1.0.02-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:4.1.1.01:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:4.2.1.02:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:4.2.2.08:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:4.2.3.03:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:4.2.3.06:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:4.2.3.07:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:4.2.3.08:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:4.2.3.09:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:4.2.3.10:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv320_firmware:4.2.3.14:*:*:*:*:*:*:* OR cpe:2.3:h:cisco:rv320:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:cisco:rv325_firmware:1.0.1.17:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:1.0.2.03:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:1.1.0.09:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:1.1.1.06:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:1.1.1.19:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:1.2.1.13:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:1.2.1.14:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:1.3.1.10:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:1.3.1.12:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:1.3.2.02:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:1.3.12.6-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:1.3.12.19-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:1.3.13.02-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:1.4.2.15:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:1.4.2.17:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:1.4.2.19:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:1.4.2.20:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:1.4.2.22:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:1.5.1.05:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:1.5.1.11:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:1.5.1.13:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:3.0.0.1-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:3.0.0.19-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:3.0.2.01-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:4.0.0.7:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:4.0.2.08-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:4.0.3.03-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:4.0.4.02-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:4.1.0.02-tm:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:4.1.1.01:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:4.2.1.02:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:4.2.2.08:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:4.2.3.03:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:4.2.3.06:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:4.2.3.07:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:4.2.3.08:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:4.2.3.09:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:4.2.3.10:*:*:*:*:*:*:* *cpe:2.3:o:cisco:rv325_firmware:4.2.3.14:*:*:*:*:*:*:* OR cpe:2.3:h:cisco:rv325:-:*:*:*:*:*:*:*
  • CVE Received by [email protected]

    Oct. 02, 2024

    Action Type Old Value New Value
    Added Description A vulnerability in the web-based management interface of Cisco Small Business RV042, RV042G, RV320, and RV325 Routers could allow an authenticated, Administrator-level, remote attacker to execute arbitrary code as the root user. To exploit this vulnerability, an attacker would need to have valid Administrator credentials on the affected device.   This vulnerability is due to improper validation of user-supplied input in the web-based management interface. An attacker could exploit this vulnerability by sending crafted HTTP requests to an affected device. A successful exploit could allow the attacker to execute arbitrary code on the underlying operating system as the root user.
    Added Reference Cisco Systems, Inc. https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sb-rv04x_rv32x_vulns-yJ2OSDhV [No types assigned]
    Added CWE Cisco Systems, Inc. CWE-121
    Added CVSS V3.1 Cisco Systems, Inc. AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
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-2024-20521 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-2024-20521 weaknesses.

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