CWE-203
Observable Discrepancy
The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor.
CVE-2023-3529 (GCVE-0-2023-3529)
Vulnerability from cvelistv5 – Published: 2023-07-06 18:31 – Updated: 2024-08-02 06:55
VLAI
Title
Rotem Dynamics Rotem CRM OTP URI Interface information exposure
Summary
A vulnerability classified as problematic has been found in Rotem Dynamics Rotem CRM up to 20230729. This affects an unknown part of the file /LandingPages/api/otp/send?id=[ID][ampersand]method=sms of the component OTP URI Interface. The manipulation leads to information exposure through discrepancy. It is possible to initiate the attack remotely. The identifier VDB-233253 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
Severity
5.3 (Medium)
5.3 (Medium)
CWE
- CWE-203 - Information Exposure Through Discrepancy
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.233253 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.233253 | signature |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Rotem Dynamics | Rotem CRM |
Affected:
20230729
|
Credits
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CVE-2023-3640 (GCVE-0-2023-3640)
Vulnerability from cvelistv5 – Published: 2023-07-24 15:19 – Updated: 2025-11-14 14:20
VLAI
Title
Kernel: x86/mm: a per-cpu entry area leak was identified through the init_cea_offsets function when prefetchnta and prefetcht2 instructions being used for the per-cpu entry area mapping to the user space
Summary
A possible unauthorized memory access flaw was found in the Linux kernel's cpu_entry_area mapping of X86 CPU data to memory, where a user may guess the location of exception stacks or other important data. Based on the previous CVE-2023-0597, the 'Randomize per-cpu entry area' feature was implemented in /arch/x86/mm/cpu_entry_area.c, which works through the init_cea_offsets() function when KASLR is enabled. However, despite this feature, there is still a risk of per-cpu entry area leaks. This issue could allow a local user to gain access to some important data with memory in an expected location and potentially escalate their privileges on the system.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-203 - Observable Discrepancy
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2023:6583 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2023-3640 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2217523 | issue-trackingx_refsource_REDHAT |
Impacted products
5 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:5.14.0-362.8.1.el9_3 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9::realtime cpe:/a:redhat:enterprise_linux:9::crb cpe:/a:redhat:enterprise_linux:9::appstream cpe:/a:redhat:enterprise_linux:9::nfv cpe:/o:redhat:enterprise_linux:9::baseos |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9 |
Date Public
2023-06-23 00:00
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CVE-2023-37482 (GCVE-0-2023-37482)
Vulnerability from cvelistv5 – Published: 2025-02-11 10:26 – Updated: 2025-04-08 08:19
VLAI
Summary
The login functionality of the web server in affected devices does not normalize the response times of login attempts. An unauthenticated remote attacker could exploit this side-channel information to distinguish between valid and invalid 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
92 products
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CVE-2023-3897 (GCVE-0-2023-3897)
Vulnerability from cvelistv5 – Published: 2023-07-25 08:59 – Updated: 2025-02-13 17:02
VLAI
Title
Bypassing CAPTCHA & Enumerating Usernames via Password Reset Page
Summary
Username enumeration is possible through Bypassing CAPTCHA in On-premise SureMDM Solution on Windows deployment allows attacker to enumerate local user information via error message.
This issue affects SureMDM On-premise: 6.31 and below version
Severity
4.8 (Medium)
CWE
- CWE-203 - Observable Discrepancy
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Onpremise SureMDM Solution | SureMDM Onpremise |
Affected:
6.31
|
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CVE-2023-39522 (GCVE-0-2023-39522)
Vulnerability from cvelistv5 – Published: 2023-08-29 17:23 – Updated: 2024-10-01 20:19
VLAI
Title
Username enumeration attack in goauthentik
Summary
goauthentik is an open-source Identity Provider. In affected versions using a recovery flow with an identification stage an attacker is able to determine if a username exists. Only setups configured with a recovery flow are impacted by this. Anyone with a user account on a system with the recovery flow described above is susceptible to having their username/email revealed as existing. An attacker can easily enumerate and check users' existence using the recovery flow, as a clear message is shown when a user doesn't exist. Depending on configuration this can either be done by username, email, or both. This issue has been addressed in versions 2023.5.6 and 2023.6.2. Users are advised to upgrade. There are no known workarounds for this issue.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-203 - Observable Discrepancy
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/goauthentik/authentik/security… | x_refsource_CONFIRM |
| https://github.com/goauthentik/authentik/commit/a… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| goauthentik | authentik |
Affected:
>= 2023.6.0, < 2023.6.2
Affected: < 2023.5.6 |
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CVE-2023-40021 (GCVE-0-2023-40021)
Vulnerability from cvelistv5 – Published: 2023-08-16 20:25 – Updated: 2024-10-03 13:37
VLAI
Title
Timing Attack Reveals CSRF Tokens in oppia
Summary
Oppia is an online learning platform. When comparing a received CSRF token against the expected token, Oppia uses the string equality operator (`==`), which is not safe against timing attacks. By repeatedly submitting invalid tokens, an attacker can brute-force the expected CSRF token character by character. Once they have recovered the token, they can then submit a forged request on behalf of a logged-in user and execute privileged actions on that user's behalf. In particular the function to validate received CSRF tokens is at `oppia.core.controllers.base.CsrfTokenManager.is_csrf_token_valid`. An attacker who can lure a logged-in Oppia user to a malicious website can perform any change on Oppia that the user is authorized to do, including changing profile information; creating, deleting, and changing explorations; etc. Note that the attacker cannot change a user's login credentials. An attack would need to complete within 1 second because every second, the time used in computing the token changes. This issue has been addressed in commit `b89bf80837` which has been included in release `3.3.2-hotfix-2`. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Severity
5.3 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/oppia/oppia/security/advisorie… | x_refsource_CONFIRM |
| https://github.com/oppia/oppia/pull/18769 | x_refsource_MISC |
| https://github.com/oppia/oppia/commit/b89bf808378… | x_refsource_MISC |
| https://github.com/oppia/oppia/blob/3a05c3558a292… | x_refsource_MISC |
Impacted products
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CVE-2023-43623 (GCVE-0-2023-43623)
Vulnerability from cvelistv5 – Published: 2023-10-10 10:21 – Updated: 2024-09-18 18:50
VLAI
Summary
A vulnerability has been identified in Mendix Forgot Password (Mendix 10 compatible) (All versions < V5.4.0), Mendix Forgot Password (Mendix 7 compatible) (All versions < V3.7.3), Mendix Forgot Password (Mendix 8 compatible) (All versions < V4.1.3), Mendix Forgot Password (Mendix 9 compatible) (All versions < V5.4.0). Applications using the affected module are vulnerable to user enumeration due to distinguishable responses. This could allow an unauthenticated remote attacker to determine if a user is valid or not, enabling a brute force attack with valid users.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-203 - Observable Discrepancy
Assigner
References
1 reference
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| Siemens | Mendix Forgot Password (Mendix 10 compatible) |
Affected:
All versions < V5.4.0
|
|
| Siemens | Mendix Forgot Password (Mendix 7 compatible) |
Affected:
All versions < V3.7.3
|
|
| Siemens | Mendix Forgot Password (Mendix 8 compatible) |
Affected:
All versions < V4.1.3
|
|
| Siemens | Mendix Forgot Password (Mendix 9 compatible) |
Affected:
All versions < V5.4.0
|
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CVE-2023-46739 (GCVE-0-2023-46739)
Vulnerability from cvelistv5 – Published: 2024-01-03 16:15 – Updated: 2025-06-17 20:29
VLAI
Title
Timing attack can leak user passwords
Summary
CubeFS is an open-source cloud-native file storage system. A vulnerability was found during in the CubeFS master component in versions prior to 3.3.1 that could allow an untrusted attacker to steal user passwords by carrying out a timing attack. The root case of the vulnerability was that CubeFS used raw string comparison of passwords. The vulnerable part of CubeFS was the UserService of the master component. The UserService gets instantiated when starting the server of the master component. The issue has been patched in v3.3.1. For impacted users, there is no other way to mitigate the issue besides upgrading.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-203 - Observable Discrepancy
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/cubefs/cubefs/security/advisor… | x_refsource_CONFIRM |
| https://github.com/cubefs/cubefs/commit/6a0d5fa45… | x_refsource_MISC |
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CVE-2023-50708 (GCVE-0-2023-50708)
Vulnerability from cvelistv5 – Published: 2023-12-22 18:25 – Updated: 2024-08-02 22:16
VLAI
Title
yii2-authclient vulnerable to possible timing attack on string comparison in OAuth1, OAuth2 and OpenID Connect implementation
Summary
yii2-authclient is an extension that adds OpenID, OAuth, OAuth2 and OpenId Connect consumers for the Yii framework 2.0. In yii2-authclient prior to version 2.2.15, the Oauth1/2 `state` and OpenID Connect `nonce` is vulnerable for a `timing attack` since it is compared via regular string comparison (instead of `Yii::$app->getSecurity()->compareString()`). Version 2.2.15 contains a patch for the issue. No known workarounds are available.
Severity
6.1 (Medium)
CWE
- CWE-203 - Observable Discrepancy
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/yiisoft/yii2-authclient/securi… | x_refsource_CONFIRM |
| https://github.com/yiisoft/yii2-authclient/commit… | x_refsource_MISC |
| https://github.com/yiisoft/yii2-authclient/blob/0… | x_refsource_MISC |
| https://github.com/yiisoft/yii2-authclient/blob/0… | x_refsource_MISC |
| https://github.com/yiisoft/yii2-authclient/blob/0… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| yiisoft | yii2-authclient |
Affected:
< 2.2.15
|
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CVE-2023-50781 (GCVE-0-2023-50781)
Vulnerability from cvelistv5 – Published: 2024-02-05 20:45 – Updated: 2026-05-12 11:02
VLAI
Title
M2crypto: bleichenbacher timing attacks in the rsa decryption api - incomplete fix for cve-2020-25657
Summary
A flaw was found in m2crypto. This issue may allow a remote attacker to decrypt captured messages in TLS servers that use RSA key exchanges, which may lead to exposure of confidential or sensitive data.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-203 - Observable Discrepancy
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2023-50781 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2254426 | issue-trackingx_refsource_REDHAT |
| https://cert-portal.siemens.com/productcert/html/… |
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9 |
|
| Red Hat | Red Hat Update Infrastructure 4 for Cloud Providers |
cpe:/a:redhat:rhui:4::el8 |
|
| Red Hat | Red Hat Virtualization 4 |
cpe:/o:redhat:rhev_hypervisor:4 |
|
| Siemens | SIMATIC S7-1500 TM MFP - GNU/Linux subsystem |
Affected:
0 , < *
(custom)
|
Date Public
2023-12-13 00:00
Credits
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Mitigation ID: MIT-46
Phase: Architecture and Design
Strategy: Separation of Privilege
Description:
- 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 ID: MIT-39
Phase: Implementation
Description:
- 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.