GSD-2021-42073
Vulnerability from gsd - Updated: 2023-12-13 01:23Details
An issue was discovered in Barrier before 2.4.0. An attacker can enter an active session state with the barriers component (aka the server-side implementation of Barrier) simply by supplying a client label that identifies a valid client configuration. This label is "Unnamed" by default but could instead be guessed from hostnames or other publicly available information. In the active session state, an attacker can capture input device events from the server, and also modify the clipboard content on the server.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2021-42073",
"description": "An issue was discovered in Barrier before 2.4.0. An attacker can enter an active session state with the barriers component (aka the server-side implementation of Barrier) simply by supplying a client label that identifies a valid client configuration. This label is \"Unnamed\" by default but could instead be guessed from hostnames or other publicly available information. In the active session state, an attacker can capture input device events from the server, and also modify the clipboard content on the server.",
"id": "GSD-2021-42073",
"references": [
"https://www.suse.com/security/cve/CVE-2021-42073.html",
"https://security.archlinux.org/CVE-2021-42073"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2021-42073"
],
"details": "An issue was discovered in Barrier before 2.4.0. An attacker can enter an active session state with the barriers component (aka the server-side implementation of Barrier) simply by supplying a client label that identifies a valid client configuration. This label is \"Unnamed\" by default but could instead be guessed from hostnames or other publicly available information. In the active session state, an attacker can capture input device events from the server, and also modify the clipboard content on the server.",
"id": "GSD-2021-42073",
"modified": "2023-12-13T01:23:06.303881Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
"cve.org": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2021-42073",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "An issue was discovered in Barrier before 2.4.0. An attacker can enter an active session state with the barriers component (aka the server-side implementation of Barrier) simply by supplying a client label that identifies a valid client configuration. This label is \"Unnamed\" by default but could instead be guessed from hostnames or other publicly available information. In the active session state, an attacker can capture input device events from the server, and also modify the clipboard content on the server."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "[oss-security] 20211102 Barrier \"software KVM switch\" multiple remote security issues",
"refsource": "MLIST",
"url": "http://www.openwall.com/lists/oss-security/2021/11/02/4"
},
{
"name": "https://github.com/debauchee/barrier/releases/tag/v2.4.0",
"refsource": "CONFIRM",
"url": "https://github.com/debauchee/barrier/releases/tag/v2.4.0"
},
{
"name": "https://github.com/debauchee/barrier/commit/b5adc93e2bd74cb094f91ff595c07f321a489f3e",
"refsource": "MISC",
"url": "https://github.com/debauchee/barrier/commit/b5adc93e2bd74cb094f91ff595c07f321a489f3e"
},
{
"name": "https://github.com/debauchee/barrier/commit/229abab99f39f11624e5651f819e7f1f8eddedcc",
"refsource": "MISC",
"url": "https://github.com/debauchee/barrier/commit/229abab99f39f11624e5651f819e7f1f8eddedcc"
}
]
}
},
"nvd.nist.gov": {
"configurations": {
"CVE_data_version": "4.0",
"nodes": [
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:a:barrier_project:barrier:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "2.4.0",
"vulnerable": true
}
],
"operator": "OR"
}
]
},
"cve": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2021-42073"
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "en",
"value": "An issue was discovered in Barrier before 2.4.0. An attacker can enter an active session state with the barriers component (aka the server-side implementation of Barrier) simply by supplying a client label that identifies a valid client configuration. This label is \"Unnamed\" by default but could instead be guessed from hostnames or other publicly available information. In the active session state, an attacker can capture input device events from the server, and also modify the clipboard content on the server."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "en",
"value": "CWE-384"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/debauchee/barrier/releases/tag/v2.4.0",
"refsource": "CONFIRM",
"tags": [
"Release Notes",
"Third Party Advisory"
],
"url": "https://github.com/debauchee/barrier/releases/tag/v2.4.0"
},
{
"name": "[oss-security] 20211102 Barrier \"software KVM switch\" multiple remote security issues",
"refsource": "MLIST",
"tags": [
"Exploit",
"Mailing List",
"Third Party Advisory"
],
"url": "http://www.openwall.com/lists/oss-security/2021/11/02/4"
},
{
"name": "https://github.com/debauchee/barrier/commit/b5adc93e2bd74cb094f91ff595c07f321a489f3e",
"refsource": "",
"tags": [],
"url": "https://github.com/debauchee/barrier/commit/b5adc93e2bd74cb094f91ff595c07f321a489f3e"
},
{
"name": "https://github.com/debauchee/barrier/commit/229abab99f39f11624e5651f819e7f1f8eddedcc",
"refsource": "",
"tags": [],
"url": "https://github.com/debauchee/barrier/commit/229abab99f39f11624e5651f819e7f1f8eddedcc"
}
]
}
},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 5.8,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 4.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "MEDIUM",
"userInteractionRequired": false
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 8.2,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 4.2
}
},
"lastModifiedDate": "2023-11-13T22:15Z",
"publishedDate": "2021-11-08T04:15Z"
}
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…