Common Weakness Enumeration
CWE-203
AllowedObservable Discrepancy
Abstraction: Base · Status: Incomplete
The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor.
836 vulnerabilities reference this CWE, most recent first.
CVE-2022-22120 (GCVE-0-2022-22120)
Vulnerability from cvelistv5 – Published: 2022-01-10 15:25 – Updated: 2024-09-16 23:27
VLAI
EPSS
VEX
Title
NocoDB - Observable Discrepancy in the password-reset feature
Summary
In NocoDB, versions 0.9 to 0.83.8 are vulnerable to Observable Discrepancy in the password-reset feature. When requesting a password reset for a given email address, the application displays an error message when the email isn't registered within the system. This allows attackers to enumerate the registered users' email addresses.
Severity
5.3 (Medium)
CWE
- CWE-203 - Information Exposure Through Discrepancy
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/nocodb/nocodb/commit/f46e89b0 | x_refsource_MISC |
| https://www.whitesourcesoftware.com/vulnerability… | x_refsource_MISC |
Impacted products
Date Public
2022-01-09 00:00
Credits
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CVE-2022-20940 (GCVE-0-2022-20940)
Vulnerability from cvelistv5 – Published: 2022-11-10 17:38 – Updated: 2024-08-03 02:31
VLAI
EPSS
VEX
Summary
A vulnerability in the TLS handler of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to gain access to sensitive information.
This vulnerability is due to improper implementation of countermeasures against a Bleichenbacher attack on a device that uses SSL decryption policies. An attacker could exploit this vulnerability by sending crafted TLS messages to an affected device, which would act as an oracle and allow the attacker to carry out a chosen-ciphertext attack. A successful exploit could allow the attacker to perform cryptanalytic operations that may allow decryption of previously captured TLS sessions to the affected device.
Severity
5.3 (Medium)
CWE
- CWE-203 - Observable Discrepancy
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco Firepower Threat Defense Software |
Affected:
6.2.3
Affected: 6.2.3.1 Affected: 6.2.3.2 Affected: 6.2.3.3 Affected: 6.2.3.4 Affected: 6.2.3.5 Affected: 6.2.3.6 Affected: 6.2.3.7 Affected: 6.2.3.8 Affected: 6.2.3.10 Affected: 6.2.3.11 Affected: 6.2.3.9 Affected: 6.2.3.12 Affected: 6.2.3.13 Affected: 6.2.3.14 Affected: 6.2.3.15 Affected: 6.2.3.16 Affected: 6.2.3.17 Affected: 6.2.3.18 Affected: 6.6.0 Affected: 6.6.0.1 Affected: 6.6.1 Affected: 6.6.3 Affected: 6.6.4 Affected: 6.6.5 Affected: 6.6.5.1 Affected: 6.6.5.2 Affected: 6.4.0 Affected: 6.4.0.1 Affected: 6.4.0.3 Affected: 6.4.0.2 Affected: 6.4.0.4 Affected: 6.4.0.5 Affected: 6.4.0.6 Affected: 6.4.0.7 Affected: 6.4.0.8 Affected: 6.4.0.9 Affected: 6.4.0.10 Affected: 6.4.0.11 Affected: 6.4.0.12 Affected: 6.4.0.13 Affected: 6.4.0.14 Affected: 6.7.0 Affected: 6.7.0.1 Affected: 6.7.0.2 Affected: 6.7.0.3 Affected: 7.0.0 Affected: 7.0.0.1 Affected: 7.0.1 Affected: 7.0.1.1 Affected: 7.0.2 Affected: 7.0.2.1 Affected: 7.0.3 Affected: 7.1.0 Affected: 7.1.0.1 Affected: 7.1.0.2 |
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CVE-2022-20866 (GCVE-0-2022-20866)
Vulnerability from cvelistv5 – Published: 2022-08-10 16:20 – Updated: 2024-11-01 18:54
VLAI
EPSS
VEX
Title
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software RSA Private Key Leak Vulnerability
Summary
A vulnerability in the handling of RSA keys on devices running Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to retrieve an RSA private key. This vulnerability is due to a logic error when the RSA key is stored in memory on a hardware platform that performs hardware-based cryptography. An attacker could exploit this vulnerability by using a Lenstra side-channel attack against the targeted device. A successful exploit could allow the attacker to retrieve the RSA private key. The following conditions may be observed on an affected device: This vulnerability will apply to approximately 5 percent of the RSA keys on a device that is running a vulnerable release of Cisco ASA Software or Cisco FTD Software; not all RSA keys are expected to be affected due to mathematical calculations applied to the RSA key. The RSA key could be valid but have specific characteristics that make it vulnerable to the potential leak of the RSA private key. If an attacker obtains the RSA private key, they could use the key to impersonate a device that is running Cisco ASA Software or Cisco FTD Software or to decrypt the device traffic. See the Indicators of Compromise section for more information on the detection of this type of RSA key. The RSA key could be malformed and invalid. A malformed RSA key is not functional, and a TLS client connection to a device that is running Cisco ASA Software or Cisco FTD Software that uses the malformed RSA key will result in a TLS signature failure, which means a vulnerable software release created an invalid RSA signature that failed verification. If an attacker obtains the RSA private key, they could use the key to impersonate a device that is running Cisco ASA Software or Cisco FTD Software or to decrypt the device traffic.
Severity
7.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://tools.cisco.com/security/center/content/C… | vendor-advisoryx_refsource_CISCO |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco Adaptive Security Appliance (ASA) Software |
Affected:
n/a
|
Date Public
2022-08-10 00:00
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CVE-2022-0823 (GCVE-0-2022-0823)
Vulnerability from cvelistv5 – Published: 2022-06-07 01:10 – Updated: 2024-08-02 23:40
VLAI
EPSS
VEX
Summary
An improper control of interaction frequency vulnerability in Zyxel GS1200 series switches could allow a local attacker to guess the password by using a timing side-channel attack.
Severity
6.2 (Medium)
CWE
- CWE-203 - Observable Discrepancy
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.zyxel.com/support/Zyxel-security-advi… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Zyxel | Zyxel GS1200 series firmware |
Affected:
2.00 Patch 1
|
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CVE-2022-0569 (GCVE-0-2022-0569)
Vulnerability from cvelistv5 – Published: 2022-02-12 23:55 – Updated: 2024-08-02 23:32
VLAI
EPSS
VEX
Title
Observable Discrepancy in snipe/snipe-it
Summary
Observable Discrepancy in Packagist snipe/snipe-it prior to v5.3.9.
Severity
5.3 (Medium)
CWE
- CWE-203 - Observable Discrepancy
Assigner
References
2 references
| URL | Tags |
|---|---|
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| https://github.com/snipe/snipe-it/commit/05c08197… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| snipe | snipe/snipe-it |
Affected:
unspecified , < v5.3.9
(custom)
|
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CVE-2021-47664 (GCVE-0-2021-47664)
Vulnerability from cvelistv5 – Published: 2025-04-24 09:25 – Updated: 2025-04-24 15:22
VLAI
EPSS
VEX
Title
Enumeration of valid user names
Summary
Due to improper authentication mechanism an unauthenticated remote attacker can enumerate valid usernames.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-203 - Observable Discrepancy
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Franka Robotics | Franka Emika Robot |
Affected:
0.0.0 , ≤ 4.0.3
(semver)
|
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CVE-2021-45925 (GCVE-0-2021-45925)
Vulnerability from cvelistv5 – Published: 2022-10-24 00:00 – Updated: 2025-05-07 13:51
VLAI
EPSS
VEX
Title
Username Enumeration
Summary
Observable discrepancies in the login process allow an attacker to guess legitimate user names registered in the BMC. This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-203 - Information Exposure Through Discrepancy
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Lanner Inc | IAC-AST2500A |
Affected:
1.10.0
|
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CVE-2021-38153 (GCVE-0-2021-38153)
Vulnerability from cvelistv5 – Published: 2021-09-22 09:05 – Updated: 2024-08-04 01:37
VLAI
EPSS
VEX
Title
Timing Attack Vulnerability for Apache Kafka Connect and Clients
Summary
Some components in Apache Kafka use `Arrays.equals` to validate a password or key, which is vulnerable to timing attacks that make brute force attacks for such credentials more likely to be successful. Users should upgrade to 2.8.1 or higher, or 3.0.0 or higher where this vulnerability has been fixed. The affected versions include Apache Kafka 2.0.0, 2.0.1, 2.1.0, 2.1.1, 2.2.0, 2.2.1, 2.2.2, 2.3.0, 2.3.1, 2.4.0, 2.4.1, 2.5.0, 2.5.1, 2.6.0, 2.6.1, 2.6.2, 2.7.0, 2.7.1, and 2.8.0.
Severity
No CVSS data available.
CWE
- CWE-203 - Observable Discrepancy
Assigner
References
11 references
| URL | Tags |
|---|---|
| https://kafka.apache.org/cve-list | x_refsource_MISC |
| https://lists.apache.org/thread.html/r35322aec467… | mailing-listx_refsource_MLIST |
| https://lists.apache.org/thread.html/r45cc0602d5f… | mailing-listx_refsource_MLIST |
| https://lists.apache.org/thread.html/r45cc0602d5f… | mailing-listx_refsource_MLIST |
| https://lists.apache.org/thread.html/rd9ef217b09f… | mailing-listx_refsource_MLIST |
| https://lists.apache.org/thread.html/rd9ef217b09f… | mailing-listx_refsource_MLIST |
| https://lists.apache.org/thread.html/r26390c8b09e… | mailing-listx_refsource_MLIST |
| https://lists.apache.org/thread.html/r26390c8b09e… | mailing-listx_refsource_MLIST |
| https://www.oracle.com/security-alerts/cpujan2022.html | x_refsource_MISC |
| https://www.oracle.com/security-alerts/cpuapr2022.html | x_refsource_MISC |
| https://www.oracle.com/security-alerts/cpujul2022.html | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Kafka |
Affected:
Apache Kafka 2.0.x , ≤ 2.0.1
(custom)
Affected: Apache Kafka 2.1.x , ≤ 2.1.1 (custom) Affected: Apache Kafka 2.2.x , ≤ 2.2.2 (custom) Affected: Apache Kafka 2.3.x , ≤ 2.3.1 (custom) Affected: Apache Kafka 2.4.x , ≤ 2.4.1 (custom) Affected: Apache Kafka 2.5.x , ≤ 2.5.1 (custom) Affected: Apache Kafka 2.6.x , ≤ 2.6.2 (custom) Affected: Apache Kafka 2.7.x , ≤ 2.7.1 (custom) Affected: Apache Kafka 2.8.x , ≤ 2.8.0 (custom) |
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CVE-2021-34576 (GCVE-0-2021-34576)
Vulnerability from cvelistv5 – Published: 2021-09-16 12:20 – Updated: 2024-09-17 02:31
VLAI
EPSS
VEX
Title
Observable discrepancy in Kaden PICOFLUX AiR leaks water consumption
Summary
In Kaden PICOFLUX Air in all known versions an information exposure through observable discrepancy exists. This may give sensitive information (water consumption without distinct values) to third parties.
Severity
4.3 (Medium)
CWE
- CWE-203 - Information Exposure Through Discrepancy
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.fit.vutbr.cz/~polcak/CVE-2021-34576.en | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kaden | PICOFLUX AiR |
Affected:
all
|
Date Public
2021-08-31 00:00
Credits
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CVE-2021-34575 (GCVE-0-2021-34575)
Vulnerability from cvelistv5 – Published: 2021-08-02 10:24 – Updated: 2024-09-16 22:46
VLAI
EPSS
VEX
Title
Information Exposure in mymbCONNECT24, mbCONNECT24 <= 2.8.0
Summary
In MB connect line mymbCONNECT24, mbCONNECT24 in versions <= 2.8.0 an unauthenticated user can enumerate valid users by checking what kind of response the server sends.
Severity
7.5 (High)
CWE
- CWE-203 - Information Exposure Through Discrepancy
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://cert.vde.com/de-de/advisories/vde-2021-030 | x_refsource_CONFIRM |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| MB connect line | mymbCONNECT24 |
Affected:
2.8.0 , ≤ 2.8.0
(custom)
|
|
| MB connect line | mbCONNECT24 |
Affected:
2.8.0 , ≤ 2.8.0
(custom)
|
Date Public
2021-07-23 00:00
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Mitigation MIT-46
Architecture and Design
Strategy: Separation of Privilege
- Compartmentalize the system to have "safe" areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
- Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.
Mitigation MIT-39
Implementation
- Ensure that error messages only contain minimal details that are useful to the intended audience and no one else. The messages need to strike the balance between being too cryptic (which can confuse users) or being too detailed (which may reveal more than intended). The messages should not reveal the methods that were used to determine the error. Attackers can use detailed information to refine or optimize their original attack, thereby increasing their chances of success.
- If errors must be captured in some detail, record them in log messages, but consider what could occur if the log messages can be viewed by attackers. Highly sensitive information such as passwords should never be saved to log files.
- Avoid inconsistent messaging that might accidentally tip off an attacker about internal state, such as whether a user account exists or not.
CAPEC-189: Black Box Reverse Engineering
An adversary discovers the structure, function, and composition of a type of computer software through black box analysis techniques. 'Black Box' methods involve interacting with the software indirectly, in the absence of direct access to the executable object. Such analysis typically involves interacting with the software at the boundaries of where the software interfaces with a larger execution environment, such as input-output vectors, libraries, or APIs. Black Box Reverse Engineering also refers to gathering physical side effects of a hardware device, such as electromagnetic radiation or sounds.