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.
903 vulnerabilities reference this CWE, most recent first.
GHSA-MR6R-82X4-F4JJ
Vulnerability from github – Published: 2019-11-20 01:34 – Updated: 2021-08-18 22:40In elliptic-php versions priot to 1.0.6, Timing attacks might be possible which can result in practical recovery of the long-term private key generated by the library under certain conditions. Leakage of a bit-length of the scalar during scalar multiplication is possible on an elliptic curve which might allow practical recovery of the long-term private key.
{
"affected": [
{
"package": {
"ecosystem": "Packagist",
"name": "simplito/elliptic-php"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.0.6"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2019-10764"
],
"database_specific": {
"cwe_ids": [
"CWE-203"
],
"github_reviewed": true,
"github_reviewed_at": "2019-11-19T03:07:02Z",
"nvd_published_at": null,
"severity": "HIGH"
},
"details": "In elliptic-php versions priot to 1.0.6, Timing attacks might be possible which can result in practical recovery of the long-term private key generated by the library under certain conditions. Leakage of a bit-length of the scalar during scalar multiplication is possible on an elliptic curve which might allow practical recovery of the long-term private key.",
"id": "GHSA-mr6r-82x4-f4jj",
"modified": "2021-08-18T22:40:49Z",
"published": "2019-11-20T01:34:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-10764"
},
{
"type": "WEB",
"url": "https://github.com/simplito/elliptic-php/commit/15652609aa55968d56685c2a9120535ccdc00fd9"
},
{
"type": "WEB",
"url": "https://minerva.crocs.fi.muni.cz"
},
{
"type": "WEB",
"url": "https://snyk.io/vuln/SNYK-PHP-SIMPLITOELLIPTICPHP-534576"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
}
],
"summary": "Timing attacks might allow practical recovery of the long-term private key"
}
GHSA-MVF6-W562-53X9
Vulnerability from github – Published: 2023-07-25 09:30 – Updated: 2025-02-13 18:31User enumeration 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
{
"affected": [],
"aliases": [
"CVE-2023-3897"
],
"database_specific": {
"cwe_ids": [
"CWE-203"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-07-25T09:15:11Z",
"severity": "MODERATE"
},
"details": "User enumeration 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\u00a0",
"id": "GHSA-mvf6-w562-53x9",
"modified": "2025-02-13T18:31:42Z",
"published": "2023-07-25T09:30:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-3897"
},
{
"type": "WEB",
"url": "https://www.42gears.com/security-and-compliance"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/177179/SureMDM-On-Premise-CAPTCHA-Bypass-User-Enumeration.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-MVXF-H63W-MQR2
Vulnerability from github – Published: 2025-01-21 21:30 – Updated: 2025-01-21 21:30Vulnerability in the JD Edwards EnterpriseOne Tools product of Oracle JD Edwards (component: Web Runtime SEC). Supported versions that are affected are Prior to 9.2.9.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise JD Edwards EnterpriseOne Tools. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all JD Edwards EnterpriseOne Tools accessible data. CVSS 3.1 Base Score 7.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).
{
"affected": [],
"aliases": [
"CVE-2025-21510"
],
"database_specific": {
"cwe_ids": [
"CWE-203"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-01-21T21:15:16Z",
"severity": "HIGH"
},
"details": "Vulnerability in the JD Edwards EnterpriseOne Tools product of Oracle JD Edwards (component: Web Runtime SEC). Supported versions that are affected are Prior to 9.2.9.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise JD Edwards EnterpriseOne Tools. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all JD Edwards EnterpriseOne Tools accessible data. CVSS 3.1 Base Score 7.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).",
"id": "GHSA-mvxf-h63w-mqr2",
"modified": "2025-01-21T21:30:55Z",
"published": "2025-01-21T21:30:55Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21510"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpujan2025.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-MW43-33V7-QGJC
Vulnerability from github – Published: 2022-03-31 00:00 – Updated: 2022-04-06 00:01In Media, there is a possible way to determine whether an app is installed, without query permissions, due to side channel information disclosure. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12LAndroid ID: A-179783181
{
"affected": [],
"aliases": [
"CVE-2021-39761"
],
"database_specific": {
"cwe_ids": [
"CWE-203"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-03-30T16:15:00Z",
"severity": "MODERATE"
},
"details": "In Media, there is a possible way to determine whether an app is installed, without query permissions, due to side channel information disclosure. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12LAndroid ID: A-179783181",
"id": "GHSA-mw43-33v7-qgjc",
"modified": "2022-04-06T00:01:52Z",
"published": "2022-03-31T00:00:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-39761"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/android-12l"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-MW4G-W7HH-RJPC
Vulnerability from github – Published: 2024-11-01 18:31 – Updated: 2024-11-01 18:31IBM TXSeries for Multiplatforms 10.1 could allow an attacker to determine valid usernames due to an observable timing discrepancy which could be used in further attacks against the system.
{
"affected": [],
"aliases": [
"CVE-2024-41741"
],
"database_specific": {
"cwe_ids": [
"CWE-203",
"CWE-208"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-11-01T17:15:16Z",
"severity": "MODERATE"
},
"details": "IBM TXSeries for Multiplatforms 10.1 could allow an attacker to determine valid usernames due to an observable timing discrepancy which could be used in further attacks against the system.",
"id": "GHSA-mw4g-w7hh-rjpc",
"modified": "2024-11-01T18:31:33Z",
"published": "2024-11-01T18:31:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-41741"
},
{
"type": "WEB",
"url": "https://www.ibm.com/support/pages/node/7174572"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-MWFG-MR2M-G85W
Vulnerability from github – Published: 2022-05-24 16:50 – Updated: 2022-05-24 16:50In CentOS-WebPanel.com (aka CWP) CentOS Web Panel 0.9.8.846, the Login process allows attackers to check whether a username is valid by reading the HTTP response.
{
"affected": [],
"aliases": [
"CVE-2019-13383"
],
"database_specific": {
"cwe_ids": [
"CWE-200",
"CWE-203"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-07-16T17:15:00Z",
"severity": "MODERATE"
},
"details": "In CentOS-WebPanel.com (aka CWP) CentOS Web Panel 0.9.8.846, the Login process allows attackers to check whether a username is valid by reading the HTTP response.",
"id": "GHSA-mwfg-mr2m-g85w",
"modified": "2022-05-24T16:50:28Z",
"published": "2022-05-24T16:50:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-13383"
},
{
"type": "WEB",
"url": "https://github.com/i3umi3iei3ii/CentOS-Control-Web-Panel-CVE/blob/master/CVE-2019-13383.md"
},
{
"type": "WEB",
"url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0010"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/153667/CentOS-Control-Web-Panel-0.9.8.838-User-Enumeration.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-MWGR-84FV-3JH9
Vulnerability from github – Published: 2025-08-01 18:31 – Updated: 2025-08-01 21:08A timing side channel in Vault and Vault Enterprise’s (“Vault”) userpass auth method allowed an attacker to distinguish between existing and non-existing users, and potentially enumerate valid usernames for Vault’s Userpass auth method. Fixed in Vault Community Edition 1.20.1 and Vault Enterprise 1.20.1, 1.19.7, 1.18.12, and 1.16.23.
{
"affected": [
{
"package": {
"ecosystem": "Go",
"name": "github.com/hashicorp/vault"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.20.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2025-6011"
],
"database_specific": {
"cwe_ids": [
"CWE-203"
],
"github_reviewed": true,
"github_reviewed_at": "2025-08-01T21:08:42Z",
"nvd_published_at": "2025-08-01T18:15:56Z",
"severity": "LOW"
},
"details": "A timing side channel in Vault and Vault Enterprise\u2019s (\u201cVault\u201d) userpass auth method allowed an attacker to distinguish between existing and non-existing users, and potentially enumerate valid usernames for Vault\u2019s Userpass auth method. Fixed in Vault Community Edition 1.20.1 and Vault Enterprise 1.20.1, 1.19.7, 1.18.12, and 1.16.23.",
"id": "GHSA-mwgr-84fv-3jh9",
"modified": "2025-08-01T21:08:42Z",
"published": "2025-08-01T18:31:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-6011"
},
{
"type": "WEB",
"url": "https://discuss.hashicorp.com/t/hcsec-2025-15-timing-side-channel-in-vault-s-userpass-auth-method/76034"
},
{
"type": "PACKAGE",
"url": "https://github.com/hashicorp/vault"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
],
"summary": "Hashicorp Vault has an Observable Discrepancy on Existing and Non-Existing Users"
}
GHSA-MWM8-XQ92-VXFQ
Vulnerability from github – Published: 2022-05-24 17:08 – Updated: 2022-05-24 17:08Inappropriate implementation in CORS in Google Chrome prior to 80.0.3987.87 allowed a remote attacker to leak cross-origin data via a crafted HTML page.
{
"affected": [],
"aliases": [
"CVE-2020-6400"
],
"database_specific": {
"cwe_ids": [
"CWE-200",
"CWE-203"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-02-11T15:15:00Z",
"severity": "MODERATE"
},
"details": "Inappropriate implementation in CORS in Google Chrome prior to 80.0.3987.87 allowed a remote attacker to leak cross-origin data via a crafted HTML page.",
"id": "GHSA-mwm8-xq92-vxfq",
"modified": "2022-05-24T17:08:41Z",
"published": "2022-05-24T17:08:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-6400"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2020:0514"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2020/02/stable-channel-update-for-desktop.html"
},
{
"type": "WEB",
"url": "https://crbug.com/1038036"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6IOHSO6BUKC6I66J5PZOMAGFVJ66ZS57"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X3B5RWJQD5LA45MYLLR55KZJOJ5NVZGP"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202003-08"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2020/dsa-4638"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00015.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00025.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-MWRG-G727-8QPV
Vulnerability from github – Published: 2024-10-15 21:30 – Updated: 2024-10-15 21:30Vulnerability in the Oracle Enterprise Command Center Framework product of Oracle E-Business Suite (component: Diagnostics). Supported versions that are affected are ECC:11-13. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Enterprise Command Center Framework. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Oracle Enterprise Command Center Framework accessible data. CVSS 3.1 Base Score 4.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N).
{
"affected": [],
"aliases": [
"CVE-2024-21206"
],
"database_specific": {
"cwe_ids": [
"CWE-203"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-15T20:15:09Z",
"severity": "MODERATE"
},
"details": "Vulnerability in the Oracle Enterprise Command Center Framework product of Oracle E-Business Suite (component: Diagnostics). Supported versions that are affected are ECC:11-13. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Enterprise Command Center Framework. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Oracle Enterprise Command Center Framework accessible data. CVSS 3.1 Base Score 4.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N).",
"id": "GHSA-mwrg-g727-8qpv",
"modified": "2024-10-15T21:30:38Z",
"published": "2024-10-15T21:30:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-21206"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpuoct2024.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-MXCC-7H5M-X57R
Vulnerability from github – Published: 2022-07-28 00:00 – Updated: 2024-01-05 13:44Jenkins GitHub Plugin 1.34.4 and earlier uses a non-constant time comparison function when checking whether the provided and computed webhook signatures are equal, allowing attackers to use statistical methods to obtain a valid webhook signature. GitHub Plugin 1.34.5 uses a constant-time comparison when validating the webhook signature.
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 1.34.4"
},
"package": {
"ecosystem": "Maven",
"name": "com.coravy.hudson.plugins.github:github"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.34.5"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2022-36885"
],
"database_specific": {
"cwe_ids": [
"CWE-203",
"CWE-208"
],
"github_reviewed": true,
"github_reviewed_at": "2022-08-24T20:44:20Z",
"nvd_published_at": "2022-07-27T15:15:00Z",
"severity": "LOW"
},
"details": "Jenkins GitHub Plugin 1.34.4 and earlier uses a non-constant time comparison function when checking whether the provided and computed webhook signatures are equal, allowing attackers to use statistical methods to obtain a valid webhook signature. GitHub Plugin 1.34.5 uses a constant-time comparison when validating the webhook signature.\n\n",
"id": "GHSA-mxcc-7h5m-x57r",
"modified": "2024-01-05T13:44:46Z",
"published": "2022-07-28T00:00:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-36885"
},
{
"type": "WEB",
"url": "https://github.com/jenkinsci/github-plugin/commit/11d1d79ebf85248dc43432389746c1ecc3452b6a"
},
{
"type": "PACKAGE",
"url": "https://github.com/jenkinsci/github-plugin"
},
{
"type": "WEB",
"url": "https://github.com/jenkinsci/github-plugin/releases/tag/v1.34.5"
},
{
"type": "WEB",
"url": "https://plugins.jenkins.io/github-issues"
},
{
"type": "WEB",
"url": "https://www.jenkins.io/security/advisory/2022-07-27/#SECURITY-1849"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2022/07/27/1"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
],
"summary": "Jenkins GitHub plugin uses weak webhook signature function"
}
Mitigation MIT-46
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
- 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.