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.
886 vulnerabilities reference this CWE, most recent first.
GHSA-9V3W-W2JH-4HFF
Vulnerability from github – Published: 2023-08-01 00:30 – Updated: 2023-08-01 16:58
VLAI
Summary
HashiCorp Vault and Vault Enterprise vulnerable to user enumeration
Details
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 is valid on the LDAP server. This vulnerability is fixed in Vault 1.14.1 and 1.13.5.
Severity
5.3 (Medium)
{
"affected": [
{
"package": {
"ecosystem": "Go",
"name": "github.com/hashicorp/vault"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.13.5"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Go",
"name": "github.com/hashicorp/vault"
},
"ranges": [
{
"events": [
{
"introduced": "1.14.0"
},
{
"fixed": "1.14.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.14.0"
]
}
],
"aliases": [
"CVE-2023-3462"
],
"database_specific": {
"cwe_ids": [
"CWE-203"
],
"github_reviewed": true,
"github_reviewed_at": "2023-08-01T16:58:49Z",
"nvd_published_at": "2023-07-31T23:15:10Z",
"severity": "MODERATE"
},
"details": "HashiCorp\u0027s 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 is valid on the LDAP server. This vulnerability is fixed in Vault 1.14.1 and 1.13.5.",
"id": "GHSA-9v3w-w2jh-4hff",
"modified": "2023-08-01T16:58:49Z",
"published": "2023-08-01T00:30:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-3462"
},
{
"type": "WEB",
"url": "https://discuss.hashicorp.com/t/hcsec-2023-24-vaults-ldap-auth-method-allows-for-user-enumeration/56714"
},
{
"type": "PACKAGE",
"url": "https://github.com/hashicorp/vault"
}
],
"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"
}
],
"summary": "HashiCorp Vault and Vault Enterprise vulnerable to user enumeration"
}
GHSA-9VR3-4V95-J9JW
Vulnerability from github – Published: 2022-05-24 17:24 – Updated: 2022-05-24 17:24
VLAI
Details
Side-channel information leakage in scroll to text in Google Chrome prior to 84.0.4147.89 allowed a remote attacker to leak cross-origin data via a crafted HTML page.
{
"affected": [],
"aliases": [
"CVE-2020-6531"
],
"database_specific": {
"cwe_ids": [
"CWE-203"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-07-22T17:15:00Z",
"severity": "MODERATE"
},
"details": "Side-channel information leakage in scroll to text in Google Chrome prior to 84.0.4147.89 allowed a remote attacker to leak cross-origin data via a crafted HTML page.",
"id": "GHSA-9vr3-4v95-j9jw",
"modified": "2022-05-24T17:24:10Z",
"published": "2022-05-24T17:24:10Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-6531"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2020/07/stable-channel-update-for-desktop.html"
},
{
"type": "WEB",
"url": "https://crbug.com/1042986"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MTRPPTKZ2RKVH2XGQCWNFZ7FOGQ5LLCA"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MYIDWCHG24ZTFD4P42D4A4WWPPA74BCG"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202007-08"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202101-30"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4824"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00069.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00007.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00018.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00041.html"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-9W2X-Q32Q-47MM
Vulnerability from github – Published: 2022-03-31 00:00 – Updated: 2022-04-06 00:01
VLAI
Details
In DevicePolicyManager, 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-192369136
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2021-39744"
],
"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 DevicePolicyManager, 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-192369136",
"id": "GHSA-9w2x-q32q-47mm",
"modified": "2022-04-06T00:01:55Z",
"published": "2022-03-31T00:00:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-39744"
},
{
"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-9W6J-7396-JGW4
Vulnerability from github – Published: 2022-05-13 01:20 – Updated: 2026-05-29 21:31
VLAI
Details
Systems with microprocessors utilizing speculative execution and Intel software guard extensions (Intel SGX) may allow unauthorized disclosure of information residing in the L1 data cache from an enclave to an attacker with local user access via a side-channel analysis.
Severity
6.4 (Medium)
{
"affected": [],
"aliases": [
"CVE-2018-3615"
],
"database_specific": {
"cwe_ids": [
"CWE-203"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-08-14T19:29:00Z",
"severity": "MODERATE"
},
"details": "Systems with microprocessors utilizing speculative execution and Intel software guard extensions (Intel SGX) may allow unauthorized disclosure of information residing in the L1 data cache from an enclave to an attacker with local user access via a side-channel analysis.",
"id": "GHSA-9w6j-7396-jgw4",
"modified": "2026-05-29T21:31:12Z",
"published": "2022-05-13T01:20:08Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-3615"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-254686.pdf"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-608355.pdf"
},
{
"type": "WEB",
"url": "https://foreshadowattack.eu"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00017.html"
},
{
"type": "WEB",
"url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0008"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20180815-0001"
},
{
"type": "WEB",
"url": "https://software.intel.com/security-software-guidance/software-guidance/l1-terminal-fault"
},
{
"type": "WEB",
"url": "https://support.f5.com/csp/article/K35558453"
},
{
"type": "WEB",
"url": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbhf03874en_us"
},
{
"type": "WEB",
"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180814-cpusidechannel"
},
{
"type": "WEB",
"url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00161.html"
},
{
"type": "WEB",
"url": "https://www.kb.cert.org/vuls/id/982149"
},
{
"type": "WEB",
"url": "https://www.synology.com/support/security/Synology_SA_18_45"
},
{
"type": "WEB",
"url": "http://support.lenovo.com/us/en/solutions/LEN-24163"
},
{
"type": "WEB",
"url": "http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20180815-01-cpu-en"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/105080"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1041451"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-9X2M-GHMM-J79W
Vulnerability from github – Published: 2021-12-22 00:00 – Updated: 2021-12-28 00:01
VLAI
Details
Dalmark Systems Systeam 2.22.8 build 1724 is vulnerable to User enumeration. The Systeam application is an ERP system that uses a mixed architecture based on SaaS tenant and user management, and on-premise database and web application counterparts. This issue occurs during the password recovery procedure for a given user, where a difference in messages could allow an attacker to determine if the given user is valid or not, enabling a brute force attack with valid users.
{
"affected": [],
"aliases": [
"CVE-2021-44875"
],
"database_specific": {
"cwe_ids": [
"CWE-203"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-12-21T17:15:00Z",
"severity": "MODERATE"
},
"details": "Dalmark Systems Systeam 2.22.8 build 1724 is vulnerable to User enumeration. The Systeam application is an ERP system that uses a mixed architecture based on SaaS tenant and user management, and on-premise database and web application counterparts. This issue occurs during the password recovery procedure for a given user, where a difference in messages could allow an attacker to determine if the given user is valid or not, enabling a brute force attack with valid users.",
"id": "GHSA-9x2m-ghmm-j79w",
"modified": "2021-12-28T00:01:15Z",
"published": "2021-12-22T00:00:39Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-44875"
},
{
"type": "WEB",
"url": "https://www.systeam.com.br/cve/userenum-2-en.txt"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-9XR7-249C-RCPJ
Vulnerability from github – Published: 2024-12-26 12:30 – Updated: 2024-12-26 12:30
VLAI
Details
Some Honor products are affected by information leak vulnerability, successful exploitation could cause the information leak.
Severity
6.2 (Medium)
{
"affected": [],
"aliases": [
"CVE-2024-47153"
],
"database_specific": {
"cwe_ids": [
"CWE-203"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-12-26T12:15:07Z",
"severity": "MODERATE"
},
"details": "Some Honor products are affected by information leak vulnerability, successful exploitation could cause the information leak.",
"id": "GHSA-9xr7-249c-rcpj",
"modified": "2024-12-26T12:30:45Z",
"published": "2024-12-26T12:30:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-47153"
},
{
"type": "WEB",
"url": "https://www.honor.com/global/security/cve-2024-47153"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-C274-3M34-WWP8
Vulnerability from github – Published: 2024-04-09 18:30 – Updated: 2024-04-09 18:30
VLAI
Details
Windows DNS Server Remote Code Execution Vulnerability
Severity
7.2 (High)
{
"affected": [],
"aliases": [
"CVE-2024-26221"
],
"database_specific": {
"cwe_ids": [
"CWE-203",
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-04-09T17:15:41Z",
"severity": "HIGH"
},
"details": "Windows DNS Server Remote Code Execution Vulnerability",
"id": "GHSA-c274-3m34-wwp8",
"modified": "2024-04-09T18:30:25Z",
"published": "2024-04-09T18:30:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26221"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-26221"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-C359-WQ75-M99W
Vulnerability from github – Published: 2022-10-24 19:00 – Updated: 2022-10-24 19:00
VLAI
Details
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)
{
"affected": [],
"aliases": [
"CVE-2021-45925"
],
"database_specific": {
"cwe_ids": [
"CWE-203"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-10-24T14:15:00Z",
"severity": "MODERATE"
},
"details": "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.",
"id": "GHSA-c359-wq75-m99w",
"modified": "2022-10-24T19:00:16Z",
"published": "2022-10-24T19:00:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-45925"
},
{
"type": "WEB",
"url": "https://github.com/CVEProject/cvelist/blob/master/2021/45xxx/CVE-2021-45925.json"
},
{
"type": "WEB",
"url": "https://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1"
},
{
"type": "WEB",
"url": "https://www.nozominetworks.com/labs/vulnerability-advisories/CVE-2021-45925"
}
],
"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-C38W-74PG-36HR
Vulnerability from github – Published: 2023-11-28 23:28 – Updated: 2026-04-27 16:45
VLAI
Summary
Marvin Attack: potential key recovery through timing sidechannels
Details
Impact
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 to use that information to recover the key.
Patches
No patch is yet available, however work is underway to migrate to a fully constant-time implementation.
Workarounds
The only currently available workaround is to avoid using the rsa crate in settings where attackers are able to observe timing information, e.g. local use on a non-compromised computer is fine.
References
This vulnerability was discovered as part of the "Marvin Attack", which revealed several implementations of RSA including OpenSSL had not properly mitigated timing sidechannel attacks.
- https://rustsec.org/advisories/RUSTSEC-2023-0071.html
- https://people.redhat.com/~hkario/marvin/
- https://github.com/RustCrypto/RSA/issues/19
Severity
5.9 (Medium)
{
"affected": [
{
"package": {
"ecosystem": "crates.io",
"name": "rsa"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "0.9.6"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-49092"
],
"database_specific": {
"cwe_ids": [
"CWE-203",
"CWE-385"
],
"github_reviewed": true,
"github_reviewed_at": "2023-11-28T23:28:27Z",
"nvd_published_at": "2023-11-28T21:15:08Z",
"severity": "MODERATE"
},
"details": "### Impact\nDue 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 to use that information to recover the key.\n\n### Patches\nNo patch is yet available, however work is underway to migrate to a fully constant-time implementation.\n\n### Workarounds\nThe only currently available workaround is to avoid using the `rsa` crate in settings where attackers are able to observe timing information, e.g. local use on a non-compromised computer is fine.\n\n### References\nThis vulnerability was discovered as part of the \"Marvin Attack\", which revealed several implementations of RSA including OpenSSL had not properly mitigated timing sidechannel attacks.\n\n- https://rustsec.org/advisories/RUSTSEC-2023-0071.html\n- https://people.redhat.com/~hkario/marvin/\n- https://github.com/RustCrypto/RSA/issues/19",
"id": "GHSA-c38w-74pg-36hr",
"modified": "2026-04-27T16:45:08Z",
"published": "2023-11-28T23:28:27Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/RustCrypto/RSA/security/advisories/GHSA-c38w-74pg-36hr"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-49092"
},
{
"type": "WEB",
"url": "https://github.com/RustCrypto/RSA/issues/19#issuecomment-1822995643"
},
{
"type": "WEB",
"url": "https://github.com/RustCrypto/RSA/issues/626"
},
{
"type": "PACKAGE",
"url": "https://github.com/RustCrypto/RSA"
},
{
"type": "WEB",
"url": "https://rustsec.org/advisories/RUSTSEC-2023-0071.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
],
"summary": "Marvin Attack: potential key recovery through timing sidechannels"
}
GHSA-C3QR-CX32-288C
Vulnerability from github – Published: 2022-05-24 19:10 – Updated: 2022-05-24 19:10
VLAI
Details
An attacker with physical access to Nuvoton Trusted Platform Module (NPCT75x 7.2.x before 7.2.2.0) could extract an Elliptic Curve Cryptography (ECC) private key via a side-channel attack against ECDSA, because of an Observable Timing Discrepancy.
{
"affected": [],
"aliases": [
"CVE-2020-25082"
],
"database_specific": {
"cwe_ids": [
"CWE-203"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-08-10T17:15:00Z",
"severity": "LOW"
},
"details": "An attacker with physical access to Nuvoton Trusted Platform Module (NPCT75x 7.2.x before 7.2.2.0) could extract an Elliptic Curve Cryptography (ECC) private key via a side-channel attack against ECDSA, because of an Observable Timing Discrepancy.",
"id": "GHSA-c3qr-cx32-288c",
"modified": "2022-05-24T19:10:34Z",
"published": "2022-05-24T19:10:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-25082"
},
{
"type": "WEB",
"url": "https://www.nuvoton.com/support/product-related-information/security-advisories/sa-002"
}
],
"schema_version": "1.4.0",
"severity": []
}
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.