Common Weakness Enumeration
CWE-306
AllowedMissing Authentication for Critical Function
Abstraction: Base · Status: Draft
The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.
4625 vulnerabilities reference this CWE, most recent first.
CVE-2022-20830 (GCVE-0-2022-20830)
Vulnerability from cvelistv5 – Published: 2022-10-10 20:43 – Updated: 2024-11-01 18:49
VLAI
EPSS
VEX
Title
Cisco Software-Defined Application Visibility and Control on Cisco vManage Authentication Bypass Vulnerability
Summary
A vulnerability in authentication mechanism of Cisco Software-Defined Application Visibility and Control (SD-AVC) on Cisco vManage could allow an unauthenticated, remote attacker to access the GUI of Cisco SD-AVC without authentication. This vulnerability exists because the GUI is accessible on self-managed cloud installations or local server installations of Cisco vManage. An attacker could exploit this vulnerability by accessing the exposed GUI of Cisco SD-AVC. A successful exploit could allow the attacker to view managed device names, SD-AVC logs, and SD-AVC DNS server IP addresses.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-01 18:43 UTC
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://tools.cisco.com/security/center/content/C… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco SD-WAN vManage |
Affected:
n/a
|
Date Public
2022-09-28 00:00
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CVE-2022-4980 (GCVE-0-2022-4980)
Vulnerability from cvelistv5 – Published: 2025-09-19 18:55 – Updated: 2025-11-21 16:07 X_Known Exploited Vulnerability
VLAI
EPSS
VEX
Title
General Bytes Crypto Application Server (CAS) Unauthenticated Creation of Admin Account via Default-installation/First-admin Page
Summary
General Bytes Crypto Application Server (CAS) beginning with version 20201208 prior to 20220531.38 (backport) and 20220725.22 (mainline) contains an authentication bypass in the admin web interface. An unauthenticated attacker could invoke the same URL used by the product's default-installation / first-admin creation page and create a new administrative account remotely. By gaining admin privileges, the attacker can change the ATM configuration resulting in redirected funds. Public vendor advisories and multiple independent writeups describe the vulnerability as a call to the page used for initial/default installation / first administration user creation; General Bytes has not publicly published the exact endpoint/parameter name. The issue was actively exploited in the wild against cloud-hosted and standalone CAS deployments (scanning exposed CAS instances on ports 7777/443), and publicly acknowledged by the General Bytes in September 2022.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-09-19 20:14 UTC
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://generalbytes.atlassian.net/wiki/spaces/ES… | vendor-advisorypatch |
| https://www.halborn.com/blog/post/explained-the-g… | third-party-advisory |
| https://news.sophos.com/en-us/2022/08/23/bitcoin-… | third-party-advisory |
| https://www.incibe.es/en/incibe-cert/publications… | third-party-advisory |
| https://thehackernews.com/2022/08/hackers-stole-c… | media-coverage |
| https://www.vulncheck.com/advisories/general-byte… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| General Bytes | Crypto Application Server (CAS) |
Affected:
20201208 , < 20220725.22
(custom)
Affected: 20201208 , < 20220531.38 (custom) cpe:2.3:a:generalbytes:crypto_application_server:*:*:*:*:*:*:*:* cpe:2.3:a:generalbytes:crypto_application_server:*:*:*:*:*:*:*:* |
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CVE-2022-4978 (GCVE-0-2022-4978)
Vulnerability from cvelistv5 – Published: 2025-07-23 13:49 – Updated: 2026-07-28 01:47
VLAI
EPSS
VEX
Title
Steppschuh Remote Control Server 3.1.1.12 Unauthenticated RCE
Summary
Remote Control Server, maintained by Steppschuh, 3.1.1.12 allows unauthenticated remote code execution when authentication is disabled, which is the default configuration. The server exposes a custom UDP-based control protocol that accepts remote keyboard input events without verification. An attacker on the same network can issue a sequence of keystroke commands to launch a system shell and execute arbitrary commands, resulting in full system compromise.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-07-23 14:41 UTC
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://raw.githubusercontent.com/rapid7/metasplo… | exploit |
| https://remote-control-collection.com/ | product |
| https://www.vulncheck.com/advisories/steppschuh-r… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Steppschuh | Remote Control Collection Server |
Affected:
3.1.1.12
cpe:2.3:a:zenstruck:collection:3.1.1.12:*:*:*:*:*:*:* |
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CVE-2022-4240 (GCVE-0-2022-4240)
Vulnerability from cvelistv5 – Published: 2023-05-30 16:15 – Updated: 2025-01-09 21:27
VLAI
EPSS
VEX
Title
Unauthenticated API allowing an attacker to obtain the information about network resources
Summary
Missing Authentication for Critical Function vulnerability in Honeywell OneWireless allows Authentication Bypass. This issue affects OneWireless version 322.1
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-01-09 21:27 UTC
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://process.honeywell.com/ |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Honeywell | OneWireless |
Affected:
322.1
|
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CVE-2022-4018 (GCVE-0-2022-4018)
Vulnerability from cvelistv5 – Published: 2022-11-16 00:00 – Updated: 2025-04-14 18:58
VLAI
EPSS
VEX
Title
Missing Authentication for Critical Function in ikus060/rdiffweb
Summary
Missing Authentication for Critical Function in GitHub repository ikus060/rdiffweb prior to 2.5.0a6.
Severity
6.1 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-14 18:19 UTC
CWE
- CWE-306 - Missing Authentication for Critical Function
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ikus060 | ikus060/rdiffweb |
Affected:
unspecified , < 2.5.0a6
(custom)
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CVE-2022-3738 (GCVE-0-2022-3738)
Vulnerability from cvelistv5 – Published: 2023-01-19 11:27 – Updated: 2025-04-02 14:55
VLAI
EPSS
VEX
Title
WAGO: Missing authentication for config export functionality in multiple products
Summary
The vulnerability allows a remote unauthenticated attacker to download a backup file, if one exists. That backup file might contain sensitive information like credentials and cryptographic material. A valid user has to create a backup after the last reboot for this attack to be successfull.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-02 14:55 UTC
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
1 reference
Impacted products
7 products
| Vendor | Product | Version | |
|---|---|---|---|
| WAGO | Series WAGO PFC100 |
Affected:
FW16 , ≤ FW22
(semver)
|
|
| WAGO | Series WAGO PFC200 |
Affected:
FW16 , ≤ FW22
(semver)
|
|
| WAGO | Series WAGO Touch Panel 600 Advanced Line |
Affected:
FW16 , ≤ FW22
(semver)
|
|
| WAGO | Series WAGO Touch Panel 600 Marine Line |
Affected:
FW16 , ≤ FW22
(semver)
|
|
| WAGO | Series WAGO Touch Panel 600 Standard Line |
Affected:
FW16 , ≤ FW22
(semver)
|
|
| WAGO | WAGO Compact Controller CC100 |
Affected:
FW16 , ≤ FW22
(semver)
|
|
| WAGO | WAGO Edge Controller |
Affected:
FW16 , ≤ FW22
(semver)
|
Date Public
2023-01-12 08:00
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CVE-2022-3327 (GCVE-0-2022-3327)
Vulnerability from cvelistv5 – Published: 2022-10-19 00:00 – Updated: 2025-05-09 14:18
VLAI
EPSS
VEX
Title
Missing Authentication for Critical Function in ikus060/rdiffweb
Summary
Missing Authentication for Critical Function in GitHub repository ikus060/rdiffweb prior to 2.5.0a6.
Severity
4.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-05-09 14:18 UTC
CWE
- CWE-306 - Missing Authentication for Critical Function
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ikus060 | ikus060/rdiffweb |
Affected:
unspecified , < 2.5.0a6
(custom)
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CVE-2022-2474 (GCVE-0-2022-2474)
Vulnerability from cvelistv5 – Published: 2022-10-28 17:11 – Updated: 2025-04-16 16:07
VLAI
EPSS
VEX
Summary
Authentication is currently unsupported in Haas Controller version 100.20.000.1110 when using the “Ethernet Q Commands” service, which allows any user on the same network segment as the controller (even while connected remotely) to access the service and write unauthorized macros to the device.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-16 15:53 UTC
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Haas | Haas CNC Controller |
Affected:
Version 100.20.000.1110
|
Date Public
2022-10-25 00:00
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CVE-2022-2242 (GCVE-0-2022-2242)
Vulnerability from cvelistv5 – Published: 2022-08-10 10:20 – Updated: 2024-09-17 00:07
VLAI
EPSS
VEX
Title
KUKA V/KSS WoV SH access control vulnerability
Summary
The KUKA SystemSoftware V/KSS in versions prior to 8.6.5 is prone to improper access control as an unauthorized attacker can directly read and write robot configurations when access control is not available or not enabled (default).
Severity
9.8 (Critical)
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.kuka.com/advisories-CVE-2022-2242 | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| KUKA | SystemSoftware V/KSS |
Affected:
8.2 , < 8.6.5
(custom)
|
Date Public
2022-08-10 00:00
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CVE-2022-2138 (GCVE-0-2022-2138)
Vulnerability from cvelistv5 – Published: 2022-07-22 14:58 – Updated: 2025-04-16 16:14
VLAI
EPSS
VEX
Title
Advantech iView
Summary
The affected product is vulnerable due to missing authentication, which may allow an attacker to read or modify sensitive data and execute arbitrary code, resulting in a denial-of-service condition.
Severity
8.2 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-16 15:55 UTC
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.cisa.gov/uscert/ics/advisories/icsa-2… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Advantech iView | iView |
Affected:
All , < 5_7_04_6469
(custom)
|
Date Public
2022-06-28 00:00
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Mitigation
Architecture and Design
- Divide the software into anonymous, normal, privileged, and administrative areas. Identify which of these areas require a proven user identity, and use a centralized authentication capability.
- Identify all potential communication channels, or other means of interaction with the software, to ensure that all channels are appropriately protected, including those channels that are assumed to be accessible only by authorized parties. Developers sometimes perform authentication at the primary channel, but open up a secondary channel that is assumed to be private. For example, a login mechanism may be listening on one network port, but after successful authentication, it may open up a second port where it waits for the connection, but avoids authentication because it assumes that only the authenticated party will connect to the port.
- In general, if the software or protocol allows a single session or user state to persist across multiple connections or channels, authentication and appropriate credential management need to be used throughout.
Mitigation MIT-15
Architecture and Design
For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
Mitigation
Architecture and Design
- Where possible, avoid implementing custom, "grow-your-own" authentication routines and consider using authentication capabilities as provided by the surrounding framework, operating system, or environment. These capabilities may avoid common weaknesses that are unique to authentication; support automatic auditing and tracking; and make it easier to provide a clear separation between authentication tasks and authorization tasks.
- In environments such as the World Wide Web, the line between authentication and authorization is sometimes blurred. If custom authentication routines are required instead of those provided by the server, then these routines must be applied to every single page, since these pages could be requested directly.
Mitigation MIT-4.5
Architecture and Design
Strategy: Libraries or Frameworks
- Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
- For example, consider using libraries with authentication capabilities such as OpenSSL or the ESAPI Authenticator [REF-45].
Mitigation
Implementation
System Configuration
Operation
When storing data in the cloud (e.g., S3 buckets, Azure blobs, Google Cloud Storage, etc.), use the provider's controls to require strong authentication for users who should be allowed to access the data [REF-1297] [REF-1298] [REF-1302].
CAPEC-12: Choosing Message Identifier
This pattern of attack is defined by the selection of messages distributed via multicast or public information channels that are intended for another client by determining the parameter value assigned to that client. This attack allows the adversary to gain access to potentially privileged information, and to possibly perpetrate other attacks through the distribution means by impersonation. If the channel/message being manipulated is an input rather than output mechanism for the system, (such as a command bus), this style of attack could be used to change the adversary's identifier to more a privileged one.
CAPEC-166: Force the System to Reset Values
An attacker forces the target into a previous state in order to leverage potential weaknesses in the target dependent upon a prior configuration or state-dependent factors. Even in cases where an attacker may not be able to directly control the configuration of the targeted application, they may be able to reset the configuration to a prior state since many applications implement reset functions.
CAPEC-216: Communication Channel Manipulation
An adversary manipulates a setting or parameter on communications channel in order to compromise its security. This can result in information exposure, insertion/removal of information from the communications stream, and/or potentially system compromise.
CAPEC-36: Using Unpublished Interfaces or Functionality
An adversary searches for and invokes interfaces or functionality that the target system designers did not intend to be publicly available. If interfaces fail to authenticate requests, the attacker may be able to invoke functionality they are not authorized for.
CAPEC-62: Cross Site Request Forgery
An attacker crafts malicious web links and distributes them (via web pages, email, etc.), typically in a targeted manner, hoping to induce users to click on the link and execute the malicious action against some third-party application. If successful, the action embedded in the malicious link will be processed and accepted by the targeted application with the users' privilege level. This type of attack leverages the persistence and implicit trust placed in user session cookies by many web applications today. In such an architecture, once the user authenticates to an application and a session cookie is created on the user's system, all following transactions for that session are authenticated using that cookie including potential actions initiated by an attacker and simply "riding" the existing session cookie.