CWE-203— Observable Discrepancy (Information Exposure via Side Channel)
The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor.— MITRE CWE catalog
769 active CVEs classified under this weakness category. Sourced from NVD, GHSA, and vendor advisories. Full definition on MITRE →
CVEs classified under CWE-203page 11 of 16
- CVE-2023-3336MEDIUMCVSS 5.3EG 5.32023-07-05
TN-5900 Series version 3.3 and prior versions is vulnearble to user enumeration vulnerability. The vulnerability may allow a remote attacker to determine whether a user is valid during password recovery through the web login page and enabl…
- CVE-2023-33518MEDIUMCVSS 5.3EG 5.32023-06-05
emoncms v11 and later was discovered to contain an information disclosure vulnerability which allows attackers to obtain the web directory path and other information leaked by the server via a crafted web request.
- CVE-2023-33741HIGHCVSS 7.5EG 7.52023-05-30
Macrovideo v380pro v1.4.97 shares the device id and password when sharing the device.
- CVE-2023-33850HIGHCVSS 7.5EG 7.52023-08-22
IBM GSKit-Crypto could allow a remote attacker to obtain sensitive information, caused by a timing-based side channel in the RSA Decryption implementation. By sending an overly large number of trial messages for decryption, an attacker cou…
- CVE-2023-34344MEDIUMCVSS 5.3EG 5.32023-06-12
AMI BMC contains a vulnerability in the IPMI handler, where an unauthorized attacker can use certain oracles to guess a valid username, which may lead to information disclosure.
- CVE-2023-3462MEDIUMCVSS 5.3EG 5.32023-07-31
HashiCorp's Vault and Vault Enterprise are vulnerable to user enumeration when using the LDAP auth method. An attacker may submit requests of existent and non-existent LDAP users and observe the response from Vault to check if the account …
- CVE-2023-34669HIGHCVSS 7.5EG 7.52023-07-17
TOTOLINK CP300+ V5.2cu.7594 contains a Denial of Service vulnerability in function RebootSystem of the file lib/cste_modules/system which can reboot the system.
- CVE-2023-34878HIGHCVSS 7.5EG 7.52023-06-14
An issue was discovered in Ujcms v6.0.2 allows attackers to gain sensitive information via the dir parameter to /api/backend/core/web-file-html/download-zip.
- CVE-2023-3529MEDIUMCVSS 5.3EG 5.32023-07-06
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 m…
- CVE-2023-35698MEDIUMCVSS 5.3EG 5.32023-07-10
Observable Response Discrepancy in the SICK ICR890-4 could allow a remote attacker to identify valid usernames for the FTP server from the response given during a failed login attempt.
- CVE-2023-3604HIGHCVSS 7.5EG 7.52023-08-21
The Change WP Admin Login WordPress plugin before 1.1.4 discloses the URL of the hidden login page when accessing a crafted URL, bypassing the protection offered.
- CVE-2023-36127HIGHCVSS 7.5EG 7.52023-10-10
User enumeration is found in in PHPJabbers Appointment Scheduler 3.0. This issue occurs during password recovery, where a difference in messages could allow an attacker to determine if the user is valid or not, enabling a brute force attac…
- CVE-2023-36325LOWCVSS 3.7EG 3.72024-10-09
i2p before 2.3.0 (Java) allows de-anonymizing the public IPv4 and IPv6 addresses of i2p hidden services (aka eepsites) via a correlation attack across the IPv4 and IPv6 addresses that occurs when a tunneled, replayed message has a behavior…
- CVE-2023-3640HIGHCVSS 7.8EG 7.82023-07-24
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-2023-05…
- CVE-2023-37217MEDIUMCVSS 5.3EG 5.32023-07-30
Tadiran Telecom Aeonix - CWE-204: Observable Response Discrepancy
- CVE-2023-37305MEDIUMCVSS 5.3EG 5.32023-06-30
An issue was discovered in the ProofreadPage (aka Proofread Page) extension for MediaWiki through 1.39.3. In includes/Page/PageContentHandler.php and includes/Page/PageDisplayHandler.php, hidden users can be exposed via public interfaces.
- CVE-2023-37413MEDIUMCVSS 5.3EG 5.32025-01-29
IBM Aspera Faspex 5.0.0 through 5.0.10 could disclose sensitive username information due to an observable response discrepancy.
- CVE-2023-37482MEDIUMCVSS 5.3EG 5.32025-02-11
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 …
- CVE-2023-38327MEDIUMCVSS 5.3EG 5.32025-07-11
An issue was discovered in eGroupWare 17.1.20190111. A User Enumeration vulnerability exists under calendar/freebusy.php, which allows unauthenticated remote attackers to enumerate the users of web applications based on server response.
- CVE-2023-38362MEDIUMCVSS 5.3EG 5.32024-03-04
IBM CICS TX Advanced 10.1 could disclose sensitive information to a remote attacker due to observable discrepancy in HTTP responses. IBM X-Force ID: 260814.
- CVE-2023-38871MEDIUMCVSS 5.3EG 5.32023-09-28
The commit 3730880 (April 2023) and v.0.9-beta1 of gugoan Economizzer has a user enumeration vulnerability in the login and forgot password functionalities. The app reacts differently when a user or email address is valid, and when it's no…
- CVE-2023-3897MEDIUMCVSS 4.8EG 4.82023-07-25
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 v…
- CVE-2023-39522MEDIUMCVSS 5.3EG 5.32023-08-29
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 thi…
- CVE-2023-40021MEDIUMCVSS 5.3EG 5.32023-08-16
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 at…
- CVE-2023-40090MEDIUMCVSS 6.5EG 6.52023-12-04
In BTM_BleVerifySignature of btm_ble.cc, there is a possible way to bypass signature validation due to side channel information disclosure. This could lead to remote escalation of privilege with no additional execution privileges needed. U…
- CVE-2023-40343MEDIUMCVSS 5.9EG 5.92023-08-16
Jenkins Tuleap Authentication Plugin 1.1.20 and earlier uses a non-constant time comparison function when validating an authentication token allowing attackers to use statistical methods to obtain a valid authentication token.
- CVE-2023-40756CRITICALCVSS 9.8EG 9.82023-08-28
User enumeration is found in PHPJabbers Callback Widget v1.0. This issue occurs during password recovery, where a difference in messages could allow an attacker to determine if the user is valid or not, enabling a brute force attack with v…
- CVE-2023-4095MEDIUMCVSS 5.3EG 5.32023-09-19
User enumeration vulnerability in Arconte Áurea 1.5.0.0 version. The exploitation of this vulnerability could allow an attacker to obtain a list of registered users in the application, obtaining the necessary information to perform more c…
- CVE-2023-41097HIGHCVSS 7.5EG 7.52023-12-21
An Observable Timing Discrepancy, Covert Timing Channel vulnerability in Silabs GSDK on ARM potentially allows Padding Oracle Crypto Attack on CBC PKCS7.This issue affects GSDK: through 4.4.0.
- CVE-2023-41885MEDIUMCVSS 5.3EG 5.32023-09-12
Piccolo is an ORM and query builder which supports asyncio. In versions 0.120.0 and prior, the implementation of `BaseUser.login` leaks enough information to a malicious user such that they would be able to successfully generate a list of …
- CVE-2023-43623MEDIUMCVSS 5.3EG 5.32023-10-10
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 …
- CVE-2023-4421MEDIUMCVSS 6.5EG 6.52023-12-12
The NSS code used for checking PKCS#1 v1.5 was leaking information useful in mounting Bleichenbacher-like attacks. Both the overall correctness of the padding as well as the length of the encrypted message was leaking through timing side-c…
- CVE-2023-44216MEDIUMCVSS 5.3EG 5.32023-09-27
PVRIC (PowerVR Image Compression) on Imagination 2018 and later GPU devices offers software-transparent compression that enables cross-origin pixel-stealing attacks against feTurbulence and feBlend in the SVG Filter specification, aka a GP…
- CVE-2023-45287HIGHCVSS 7.5EG 7.52023-12-05
Before Go 1.20, the RSA based TLS key exchanges used the math/big library, which is not constant time. RSA blinding was applied to prevent timing attacks, but analysis shows this may not have been fully effective. In particular it appears …
- CVE-2023-46739MEDIUMCVSS 5.9EG 5.92024-01-03
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 a…
- CVE-2023-47102MEDIUMCVSS 5.3EG 5.32023-11-07
UrBackup Server 2.5.31 allows brute-force enumeration of user accounts because a failure message confirms that a username is not valid.
- CVE-2023-47159MEDIUMCVSS 4.3EG 4.32025-01-27
IBM Sterling File Gateway 6.0.0.0 through 6.1.2.5 and 6.2.0.0 through 6.2.0.1 could allow an authenticated user to enumerate usernames due to an observable discrepancy in request responses.
- CVE-2023-49092MEDIUMCVSS 5.9EG 5.92023-11-28
RustCrypto/RSA is a portable RSA implementation in pure Rust. Due to a non-constant-time implementation, information about the private key is leaked through timing information which is observable over the network. An attacker may be able t…
- CVE-2023-50306MEDIUMCVSS 4.0EG 4.02024-02-20
IBM Common Licensing 9.0 could allow a local user to enumerate usernames due to an observable response discrepancy. IBM X-Force ID: 273337.
- CVE-2023-50708CRITICALCVSS 9.8EG 9.82023-12-22
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…
- CVE-2023-50781HIGHCVSS 7.5EG 7.52024-02-05
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.
- CVE-2023-50782HIGHCVSS 7.5EG 7.52024-02-05
A flaw was found in the python-cryptography package. 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.
- CVE-2023-50979MEDIUMCVSS 5.9EG 5.92023-12-18
Crypto++ (aka cryptopp) through 8.9.0 has a Marvin side channel during decryption with PKCS#1 v1.5 padding.
- CVE-2023-51437HIGHCVSS 7.4EG 7.42024-02-07
Observable timing discrepancy vulnerability in Apache Pulsar SASL Authentication Provider can allow an attacker to forge a SASL Role Token that will pass signature verification. Users are recommended to upgrade to version 2.11.3, 3.0.2, or…
- CVE-2023-52323MEDIUMCVSS 5.9EG 5.92024-01-05
PyCryptodome and pycryptodomex before 3.19.1 allow side-channel leakage for OAEP decryption, exploitable for a Manger attack.
- CVE-2023-5388MEDIUMCVSS 6.5EG 6.52024-03-19
NSS was susceptible to a timing side-channel attack when performing RSA decryption. This attack could potentially allow an attacker to recover the private data. This vulnerability affects Firefox < 124, Firefox ESR < 115.9, and Thunderbird…
- CVE-2023-53943MEDIUMCVSS 5.3EG 5.32025-12-18
GLPI 9.5.7 contains a username enumeration vulnerability in the lost password recovery mechanism that allows attackers to validate email addresses. Attackers can systematically test email addresses by submitting requests to the password re…
- CVE-2023-5410HIGHCVSS 8.2EG 8.22024-03-12
A potential security vulnerability has been reported in the system BIOS of certain HP PC products, which might allow memory tampering. HP is releasing mitigation for the potential vulnerability.
- CVE-2023-54357HIGHCVSS 7.5EG 7.52026-06-19
Joomla com_booking component 2.4.9 contains an information disclosure vulnerability that allows unauthenticated attackers to enumerate user accounts by exploiting the getUserData function in the customer controller. Attackers can send GET …
- CVE-2023-5722MEDIUMCVSS 5.3EG 5.32023-10-25
Using iterative requests an attacker was able to learn the size of an opaque response, as well as the contents of a server-supplied Vary header. This vulnerability affects Firefox < 119.
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