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.
835 vulnerabilities reference this CWE, most recent first.
GHSA-8J6M-2R2J-2F2X
Vulnerability from github – Published: 2021-12-24 00:00 – Updated: 2022-07-09 00:00A vulnerability in SonicWall SMA100 password change API allows a remote unauthenticated attacker to perform SMA100 username enumeration based on the server responses. This vulnerability impacts 10.2.1.2-24sv, 10.2.0.8-37sv and earlier 10.x versions.
{
"affected": [],
"aliases": [
"CVE-2021-20049"
],
"database_specific": {
"cwe_ids": [
"CWE-200",
"CWE-203"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-12-23T02:15:00Z",
"severity": "HIGH"
},
"details": "A vulnerability in SonicWall SMA100 password change API allows a remote unauthenticated attacker to perform SMA100 username enumeration based on the server responses. This vulnerability impacts 10.2.1.2-24sv, 10.2.0.8-37sv and earlier 10.x versions.",
"id": "GHSA-8j6m-2r2j-2f2x",
"modified": "2022-07-09T00:00:22Z",
"published": "2021-12-24T00:00:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-20049"
},
{
"type": "WEB",
"url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0030"
}
],
"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-8M64-WRM2-JJ3M
Vulnerability from github – Published: 2022-05-24 17:30 – Updated: 2022-05-24 17:30When configuring stateless firewall filters in Juniper Networks EX4600 and QFX 5000 Series devices using Virtual Extensible LAN protocol (VXLAN), the discard action will fail to discard traffic under certain conditions. Given a firewall filter configuration similar to: family ethernet-switching { filter L2-VLAN { term ALLOW { from { user-vlan-id 100; } then { accept; } } term NON-MATCH { then { discard; } } when there is only one term containing a 'user-vlan-id' match condition, and no other terms in the firewall filter except discard, the discard action for non-matching traffic will only discard traffic with the same VLAN ID specified under 'user-vlan-id'. Other traffic (e.g. VLAN ID 200) will not be discarded. This unexpected behavior can lead to unintended traffic passing through the interface where the firewall filter is applied. This issue only affects systems using VXLANs. This issue affects Juniper Networks Junos OS on QFX5K Series: 18.1 versions prior to 18.1R3-S7, except 18.1R3; 18.2 versions prior to 18.2R2-S7, 18.2R3-S1; 18.3 versions prior to 18.3R1-S5, 18.3R2-S4, 18.3R3; 18.4 versions prior to 18.4R1-S7, 18.4R2-S1, 18.4R3; 19.1 versions prior to 19.1R1-S5, 19.1R2; 19.2 versions prior to 19.2R1-S5, 19.2R2.
{
"affected": [],
"aliases": [
"CVE-2020-1685"
],
"database_specific": {
"cwe_ids": [
"CWE-203"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-10-16T21:15:00Z",
"severity": "MODERATE"
},
"details": "When configuring stateless firewall filters in Juniper Networks EX4600 and QFX 5000 Series devices using Virtual Extensible LAN protocol (VXLAN), the discard action will fail to discard traffic under certain conditions. Given a firewall filter configuration similar to: family ethernet-switching { filter L2-VLAN { term ALLOW { from { user-vlan-id 100; } then { accept; } } term NON-MATCH { then { discard; } } when there is only one term containing a \u0027user-vlan-id\u0027 match condition, and no other terms in the firewall filter except discard, the discard action for non-matching traffic will only discard traffic with the same VLAN ID specified under \u0027user-vlan-id\u0027. Other traffic (e.g. VLAN ID 200) will not be discarded. This unexpected behavior can lead to unintended traffic passing through the interface where the firewall filter is applied. This issue only affects systems using VXLANs. This issue affects Juniper Networks Junos OS on QFX5K Series: 18.1 versions prior to 18.1R3-S7, except 18.1R3; 18.2 versions prior to 18.2R2-S7, 18.2R3-S1; 18.3 versions prior to 18.3R1-S5, 18.3R2-S4, 18.3R3; 18.4 versions prior to 18.4R1-S7, 18.4R2-S1, 18.4R3; 19.1 versions prior to 19.1R1-S5, 19.1R2; 19.2 versions prior to 19.2R1-S5, 19.2R2.",
"id": "GHSA-8m64-wrm2-jj3m",
"modified": "2022-05-24T17:30:52Z",
"published": "2022-05-24T17:30:52Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-1685"
},
{
"type": "WEB",
"url": "https://kb.juniper.net/JSA11082"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-8M97-XC46-RW9W
Vulnerability from github – Published: 2022-05-14 02:08 – Updated: 2024-04-24 18:13libraries/common.inc.php in phpMyAdmin 4.0.x before 4.0.10.13, 4.4.x before 4.4.15.3, and 4.5.x before 4.5.4 does not use a constant-time algorithm for comparing CSRF tokens, which makes it easier for remote attackers to bypass intended access restrictions by measuring time differences.
{
"affected": [
{
"package": {
"ecosystem": "Packagist",
"name": "phpmyadmin/phpmyadmin"
},
"ranges": [
{
"events": [
{
"introduced": "4.0"
},
{
"fixed": "4.0.10.13"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Packagist",
"name": "phpmyadmin/phpmyadmin"
},
"ranges": [
{
"events": [
{
"introduced": "4.4"
},
{
"fixed": "4.4.15.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Packagist",
"name": "phpmyadmin/phpmyadmin"
},
"ranges": [
{
"events": [
{
"introduced": "4.5"
},
{
"fixed": "4.5.4"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2016-2041"
],
"database_specific": {
"cwe_ids": [
"CWE-203"
],
"github_reviewed": true,
"github_reviewed_at": "2024-04-24T18:13:18Z",
"nvd_published_at": "2016-02-20T01:59:00Z",
"severity": "HIGH"
},
"details": "libraries/common.inc.php in phpMyAdmin 4.0.x before 4.0.10.13, 4.4.x before 4.4.15.3, and 4.5.x before 4.5.4 does not use a constant-time algorithm for comparing CSRF tokens, which makes it easier for remote attackers to bypass intended access restrictions by measuring time differences.",
"id": "GHSA-8m97-xc46-rw9w",
"modified": "2024-04-24T18:13:18Z",
"published": "2022-05-14T02:08:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2016-2041"
},
{
"type": "WEB",
"url": "https://github.com/phpmyadmin/phpmyadmin/commit/ec0e88e37ef30a66eada1c072953f4ec385a3e49"
},
{
"type": "PACKAGE",
"url": "https://github.com/phpmyadmin/composer"
},
{
"type": "WEB",
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176483.html"
},
{
"type": "WEB",
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176739.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-updates/2016-02/msg00028.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-updates/2016-02/msg00049.html"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2016/dsa-3627"
},
{
"type": "WEB",
"url": "http://www.phpmyadmin.net/home_page/security/PMASA-2016-5.php"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
}
],
"summary": "phpMyAdmin Unsafe comparison of XSRF/CSRF token"
}
GHSA-8MCG-C459-MXPG
Vulnerability from github – Published: 2022-04-06 00:01 – Updated: 2022-04-19 00:01IBM MQ Appliance 9.2 CD and 9.2 LTS could allow an attacker to enumerate account credentials due to an observable discrepancy in valid and invalid login attempts. IBM X-Force ID: 220487.
{
"affected": [],
"aliases": [
"CVE-2022-22356"
],
"database_specific": {
"cwe_ids": [
"CWE-203"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-04-05T17:15:00Z",
"severity": "MODERATE"
},
"details": "IBM MQ Appliance 9.2 CD and 9.2 LTS could allow an attacker to enumerate account credentials due to an observable discrepancy in valid and invalid login attempts. IBM X-Force ID: 220487.",
"id": "GHSA-8mcg-c459-mxpg",
"modified": "2022-04-19T00:01:34Z",
"published": "2022-04-06T00:01:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-22356"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/220487"
},
{
"type": "WEB",
"url": "https://www.ibm.com/support/pages/node/6564711"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-8MPG-2V82-WJ6C
Vulnerability from github – Published: 2022-08-13 00:00 – Updated: 2022-08-16 00:00In AlarmManagerService, 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-13Android ID: A-198782887
{
"affected": [],
"aliases": [
"CVE-2022-20307"
],
"database_specific": {
"cwe_ids": [
"CWE-203"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-08-12T15:15:00Z",
"severity": "LOW"
},
"details": "In AlarmManagerService, 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-13Android ID: A-198782887",
"id": "GHSA-8mpg-2v82-wj6c",
"modified": "2022-08-16T00:00:23Z",
"published": "2022-08-13T00:00:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-20307"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/android-13"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-8MXX-2MX2-6738
Vulnerability from github – Published: 2023-04-16 03:30 – Updated: 2024-04-04 03:29front/icon.send.php in the CMDB plugin before 3.0.3 for GLPI allows attackers to gain read access to sensitive information via a _log/ pathname in the file parameter.
{
"affected": [],
"aliases": [
"CVE-2022-34125"
],
"database_specific": {
"cwe_ids": [
"CWE-200",
"CWE-203"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-04-16T03:15:00Z",
"severity": "MODERATE"
},
"details": "front/icon.send.php in the CMDB plugin before 3.0.3 for GLPI allows attackers to gain read access to sensitive information via a _log/ pathname in the file parameter.",
"id": "GHSA-8mxx-2mx2-6738",
"modified": "2024-04-04T03:29:48Z",
"published": "2023-04-16T03:30:25Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/InfotelGLPI/cmdb/security/advisories/GHSA-wv59-3rv4-vm9f"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-34125"
},
{
"type": "WEB",
"url": "https://github.com/InfotelGLPI/cmdb/releases/tag/3.0.3"
},
{
"type": "WEB",
"url": "https://pentest.blog/advisory-glpi-service-management-software-sql-injection-remote-code-execution-and-local-file-inclusion"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-8QMC-XR4H-98GP
Vulnerability from github – Published: 2022-06-16 00:00 – Updated: 2022-06-30 00:00A potential vulnerability in some AMD processors using frequency scaling may allow an authenticated attacker to execute a timing attack to potentially enable information disclosure.
{
"affected": [],
"aliases": [
"CVE-2022-23823"
],
"database_specific": {
"cwe_ids": [
"CWE-203"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-06-15T20:15:00Z",
"severity": "MODERATE"
},
"details": "A potential vulnerability in some AMD processors using frequency scaling may allow an authenticated attacker to execute a timing attack to potentially enable information disclosure.",
"id": "GHSA-8qmc-xr4h-98gp",
"modified": "2022-06-30T00:00:35Z",
"published": "2022-06-16T00:00:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-23823"
},
{
"type": "WEB",
"url": "https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1038"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-8RF7-VPJ6-3967
Vulnerability from github – Published: 2022-05-24 19:17 – Updated: 2022-05-24 19:17A timing and power-based side channel attack leveraging the x86 PREFETCH instructions on some AMD CPUs could potentially result in leaked kernel address space information.
{
"affected": [],
"aliases": [
"CVE-2021-26318"
],
"database_specific": {
"cwe_ids": [
"CWE-203"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-10-13T19:15:00Z",
"severity": "MODERATE"
},
"details": "A timing and power-based side channel attack leveraging the x86 PREFETCH instructions on some AMD CPUs could potentially result in leaked kernel address space information.",
"id": "GHSA-8rf7-vpj6-3967",
"modified": "2022-05-24T19:17:23Z",
"published": "2022-05-24T19:17:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-26318"
},
{
"type": "WEB",
"url": "https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1017"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-8RH3-5C87-WH48
Vulnerability from github – Published: 2022-05-24 16:53 – Updated: 2023-04-12 18:30Zabbix through 4.4.0alpha1 allows User Enumeration. With login requests, it is possible to enumerate application usernames based on the variability of server responses (e.g., the "Login name or password is incorrect" and "No permissions for system access" messages, or just blocking for a number of seconds). This affects both api_jsonrpc.php and index.php.
{
"affected": [],
"aliases": [
"CVE-2019-15132"
],
"database_specific": {
"cwe_ids": [
"CWE-200",
"CWE-203"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-08-17T18:15:00Z",
"severity": "MODERATE"
},
"details": "Zabbix through 4.4.0alpha1 allows User Enumeration. With login requests, it is possible to enumerate application usernames based on the variability of server responses (e.g., the \"Login name or password is incorrect\" and \"No permissions for system access\" messages, or just blocking for a number of seconds). This affects both api_jsonrpc.php and index.php.",
"id": "GHSA-8rh3-5c87-wh48",
"modified": "2023-04-12T18:30:39Z",
"published": "2022-05-24T16:53:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-15132"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/04/msg00018.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2023/04/msg00013.html"
},
{
"type": "WEB",
"url": "https://support.zabbix.com/browse/ZBX-16532"
}
],
"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-8V55-RM6P-87P5
Vulnerability from github – Published: 2022-02-15 00:03 – Updated: 2026-07-14 12:31The implementations of SAE in hostapd before 2.10 and wpa_supplicant before 2.10 are vulnerable to side channel attacks as a result of cache access patterns. NOTE: this issue exists because of an incomplete fix for CVE-2019-9494.
{
"affected": [],
"aliases": [
"CVE-2022-23303"
],
"database_specific": {
"cwe_ids": [
"CWE-203"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-01-17T02:15:00Z",
"severity": "CRITICAL"
},
"details": "The implementations of SAE in hostapd before 2.10 and wpa_supplicant before 2.10 are vulnerable to side channel attacks as a result of cache access patterns. NOTE: this issue exists because of an incomplete fix for CVE-2019-9494.",
"id": "GHSA-8v55-rm6p-87p5",
"modified": "2026-07-14T12:31:06Z",
"published": "2022-02-15T00:03:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-23303"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-585531.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/04/msg00019.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YPDHU5MV464CZBPX7N2SNMUYP6DFIBZL"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YPDHU5MV464CZBPX7N2SNMUYP6DFIBZL"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202309-16"
},
{
"type": "WEB",
"url": "https://w1.fi/security/2022-1"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
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.