5.3
MEDIUM
CVE-2021-1234
"Cisco SD-WAN vManage Cluster Management Interface Authentication Bypass"
Description

A vulnerability in the cluster management interface of Cisco SD-WAN vManage Software could allow an unauthenticated, remote attacker to view sensitive information on an affected system. To be affected by this vulnerability, the vManage software must be in cluster mode. This vulnerability is due to the absence of authentication for sensitive information in the cluster management interface. An attacker could exploit this vulnerability by sending a crafted request to the cluster management interface of an affected system. A successful exploit could allow the attacker to view sensitive information on the affected system.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

INFO

Published Date :

Nov. 18, 2024, 4:15 p.m.

Last Modified :

Nov. 18, 2024, 5:11 p.m.

Remotely Exploitable :

Yes !

Impact Score :

1.4

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2021-1234 has a 41 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-2021-1234 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 catalyst_sd-wan_manager
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-2021-1234.

URL Resource
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-vmaninfdis3-OvdR6uu8

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).

None

Python

Updated: 1 day, 11 hours ago
0 stars 0 fork 0 watcher
Born at : June 28, 2025, 3:17 p.m. This repo has been linked 1 different CVEs too.

Agent used to verify is a RHEL CVE is fixed in RHEL CoreOS

Python

Updated: 4 days, 18 hours ago
0 stars 0 fork 0 watcher
Born at : June 24, 2025, 8:24 a.m. This repo has been linked 2 different CVEs too.

Planned material to cover for our latest InfoSec intern.

Updated: 4 days, 13 hours ago
0 stars 0 fork 0 watcher
Born at : June 3, 2025, 1:52 p.m. This repo has been linked 1 different CVEs too.

None

Python

Updated: 1 month, 1 week ago
0 stars 0 fork 0 watcher
Born at : May 19, 2025, 11:39 p.m. This repo has been linked 1 different CVEs too.

Reachability analysis tool for Linux kernel to flag CVEs that matter

Python

Updated: 1 week, 6 days ago
0 stars 0 fork 0 watcher
Born at : May 19, 2025, 9:50 p.m. This repo has been linked 3 different CVEs too.

Investigating Why AI Detects SARD but Misses CVEs

C

Updated: 1 month, 3 weeks ago
1 stars 1 fork 1 watcher
Born at : April 25, 2025, 7:21 a.m. This repo has been linked 1 different CVEs too.

Vulnerability analysis software for the integrative project - SENAI SP

Python

Updated: 2 months ago
0 stars 0 fork 0 watcher
Born at : April 13, 2025, 4:58 p.m. This repo has been linked 2 different CVEs too.

Aoutomated Find CVE & Vulnerability & Recon Tool

Python

Updated: 2 months, 2 weeks ago
0 stars 5 fork 5 watcher
Born at : April 9, 2025, 2:28 p.m. This repo has been linked 1 different CVEs too.

ReconSepher

Python HTML CSS

Updated: 2 months, 3 weeks ago
0 stars 0 fork 0 watcher
Born at : April 3, 2025, 7:25 p.m. This repo has been linked 1 different CVEs too.

Утилита предназначена для сканирования сети с использованием masscan и nmap. Она позволяет определять открытые порты, сервисы и уязвимости на указанных IP-адресах. Результаты сканирования сохраняются в Excel-файл.

Python

Updated: 2 months, 1 week ago
2 stars 0 fork 0 watcher
Born at : March 12, 2025, 6:37 a.m. This repo has been linked 1 different CVEs too.

None

Python Shell Dockerfile PLpgSQL

Updated: 1 month, 3 weeks ago
0 stars 0 fork 0 watcher
Born at : March 4, 2025, 4:13 p.m. This repo has been linked 1 different CVEs too.

Aoutomated Find CVE & Vulnerability & Recon Tool

Python

Updated: 2 months ago
7 stars 6 fork 6 watcher
Born at : Feb. 28, 2025, 2:28 p.m. This repo has been linked 1 different CVEs too.

None

Python

Updated: 4 months, 2 weeks ago
1 stars 0 fork 0 watcher
Born at : Feb. 10, 2025, 9:16 a.m. This repo has been linked 1 different CVEs too.

This tool scans OS images, container images, tar images, or binary images and lists out the open CVEs.

cve-scanning cybersecurity

Dockerfile Shell Python

Updated: 4 months, 3 weeks ago
0 stars 0 fork 0 watcher
Born at : Feb. 7, 2025, 8 p.m. This repo has been linked 1 different CVEs too.

None

Jupyter Notebook

Updated: 1 month, 1 week ago
0 stars 0 fork 0 watcher
Born at : Feb. 7, 2025, 8:36 a.m. This repo has been linked 1 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-2021-1234 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-1234 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 Received by [email protected]

    Nov. 18, 2024

    Action Type Old Value New Value
    Added Description A vulnerability in the cluster management interface of Cisco SD-WAN vManage Software could allow an unauthenticated, remote attacker to view sensitive information on an affected system. To be affected by this vulnerability, the vManage software must be in cluster mode. This vulnerability is due to the absence of authentication for sensitive information in the cluster management interface. An attacker could exploit this vulnerability by sending a crafted request to the cluster management interface of an affected system. A successful exploit could allow the attacker to view sensitive information on the affected system.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
    Added Reference Cisco Systems, Inc. https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-vmaninfdis3-OvdR6uu8 [No types assigned]
    Added CWE Cisco Systems, Inc. CWE-497
    Added CVSS V3.1 Cisco Systems, Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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-2021-1234 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-2021-1234 weaknesses.

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
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Latest DB Update: Jun. 30, 2025 2:52