GSD-2021-28496
Vulnerability from gsd - Updated: 2023-12-13 01:23Details
On systems running Arista EOS and CloudEOS with the affected release version, when using shared secret profiles the password configured for use by BiDirectional Forwarding Detection (BFD) will be leaked when displaying output over eAPI or other JSON outputs to other authenticated users on the device. The affected EOS Versions are: all releases in 4.22.x train, 4.23.9 and below releases in the 4.23.x train, 4.24.7 and below releases in the 4.24.x train, 4.25.4 and below releases in the 4.25.x train, 4.26.1 and below releases in the 4.26.x train
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2021-28496",
"description": "On systems running Arista EOS and CloudEOS with the affected release version, when using shared secret profiles the password configured for use by BiDirectional Forwarding Detection (BFD) will be leaked when displaying output over eAPI or other JSON outputs to other authenticated users on the device. The affected EOS Versions are: all releases in 4.22.x train, 4.23.9 and below releases in the 4.23.x train, 4.24.7 and below releases in the 4.24.x train, 4.25.4 and below releases in the 4.25.x train, 4.26.1 and below releases in the 4.26.x train",
"id": "GSD-2021-28496"
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2021-28496"
],
"details": "On systems running Arista EOS and CloudEOS with the affected release version, when using shared secret profiles the password configured for use by BiDirectional Forwarding Detection (BFD) will be leaked when displaying output over eAPI or other JSON outputs to other authenticated users on the device. The affected EOS Versions are: all releases in 4.22.x train, 4.23.9 and below releases in the 4.23.x train, 4.24.7 and below releases in the 4.24.x train, 4.25.4 and below releases in the 4.25.x train, 4.26.1 and below releases in the 4.26.x train",
"id": "GSD-2021-28496",
"modified": "2023-12-13T01:23:28.834359Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
"cve.org": {
"CVE_data_meta": {
"ASSIGNER": "psirt@arista.com",
"DATE_PUBLIC": "2021-10-19T16:00:00.000Z",
"ID": "CVE-2021-28496",
"STATE": "PUBLIC",
"TITLE": "In Arista\u0027s EOS software affected releases, the shared secret profiles sensitive configuration might be leaked when displaying output over eAPI or other JSON outputs to authenticated users on the device. "
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Arista EOS",
"version": {
"version_data": [
{
"version_affected": "\u003c=",
"version_name": "EOS-4.22",
"version_value": "EOS-4.22.12"
},
{
"version_affected": "\u003c",
"version_name": "EOS-4.23",
"version_value": "EOS-4.23.10 "
},
{
"version_affected": "\u003c",
"version_name": "EOS-4.24",
"version_value": "EOS-4.24.8"
},
{
"version_affected": "\u003c",
"version_name": "EOS-4.25",
"version_value": "EOS-4.25.5"
},
{
"version_affected": "\u003c",
"version_name": "EOS-4.26",
"version_value": "EOS-4.26.2"
}
]
}
}
]
},
"vendor_name": "Arista Networks"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "On systems running Arista EOS and CloudEOS with the affected release version, when using shared secret profiles the password configured for use by BiDirectional Forwarding Detection (BFD) will be leaked when displaying output over eAPI or other JSON outputs to other authenticated users on the device. The affected EOS Versions are: all releases in 4.22.x train, 4.23.9 and below releases in the 4.23.x train, 4.24.7 and below releases in the 4.24.x train, 4.25.4 and below releases in the 4.25.x train, 4.26.1 and below releases in the 4.26.x train"
}
]
},
"generator": {
"engine": "Vulnogram 0.0.9"
},
"impact": {
"cvss": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 5.7,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-311 Missing Encryption of Sensitive Data"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://www.arista.com/en/support/advisories-notices/security-advisories/13243-security-advisory-0069",
"refsource": "MISC",
"url": "https://www.arista.com/en/support/advisories-notices/security-advisories/13243-security-advisory-0069"
}
]
},
"solution": [
{
"lang": "eng",
"value": "The recommended resolution is to upgrade to a remediated software version at your earliest convenience.\nThe vulnerability is fixed in the following EOS versions:\n 4.23.10 and later releases\n 4.24.8 and later releases\n 4.25.5 and later releases\n 4.26.2 and later releases"
},
{
"lang": "eng",
"value": "For an immediate remediation until EOS can be upgraded, a hotfix SWIX is available to be installed as EOS extension to fix the issue.\n\nRelease versions: 4.22.0 - 4.25.0\n URL: https://www.arista.com/assets/data/SecurityAdvisories/SA69/SecurityAdvisory0069Hotfix-4.22-4.25.0.swix\n SWIX hash: (SHA512)36fc77d7ff5de2aacfff822bac4e054137a5ebf7d54f283cd4d4be05f15a2c1e448245080e0be11122831bb672d1d777724a8bcbbf029e32a3611d6002e2cf10\n\nRelease versions: 4.25.1 - 4.26.1\n URL: https://www.arista.com/assets/data/SecurityAdvisories/SA69/SecurityAdvisory0069Hotfix-4.25.1-4.26.1.swix\n SWIX hash: (SHA512)c8d5a8ab801c7e45dbc0f062f738f3af72084b451a7734c5607a884d648d88b37d7a8451d09dd0a051728199f4b6b0c0bef76b5c3862a668298410cbce55e085"
}
],
"source": {
"discovery": "INTERNAL"
},
"work_around": [
{
"lang": "eng",
"value": "The restriction of access to the related CLI show command of specified role type can be used as an immediate mitigation. \nThe detailed instructions of role-based authorization can be found at https://www.arista.com/um-eos/eos-user-security#xx1347683."
}
]
},
"nvd.nist.gov": {
"configurations": {
"CVE_data_version": "4.0",
"nodes": [
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndIncluding": "4.22.7m",
"versionStartIncluding": "4.22",
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "4.23.10",
"versionStartIncluding": "4.23",
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "4.24.8",
"versionStartIncluding": "4.24",
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "4.25.5",
"versionStartIncluding": "4.25",
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "4.26.2",
"versionStartIncluding": "4.26",
"vulnerable": true
}
],
"operator": "OR"
}
]
},
"cve": {
"CVE_data_meta": {
"ASSIGNER": "psirt@arista.com",
"ID": "CVE-2021-28496"
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "en",
"value": "On systems running Arista EOS and CloudEOS with the affected release version, when using shared secret profiles the password configured for use by BiDirectional Forwarding Detection (BFD) will be leaked when displaying output over eAPI or other JSON outputs to other authenticated users on the device. The affected EOS Versions are: all releases in 4.22.x train, 4.23.9 and below releases in the 4.23.x train, 4.24.7 and below releases in the 4.24.x train, 4.25.4 and below releases in the 4.25.x train, 4.26.1 and below releases in the 4.26.x train"
}
]
},
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"description": [
{
"lang": "en",
"value": "CWE-522"
}
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"references": {
"reference_data": [
{
"name": "https://www.arista.com/en/support/advisories-notices/security-advisories/13243-security-advisory-0069",
"refsource": "MISC",
"tags": [
"Vendor Advisory"
],
"url": "https://www.arista.com/en/support/advisories-notices/security-advisories/13243-security-advisory-0069"
}
]
}
},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "SINGLE",
"availabilityImpact": "NONE",
"baseScore": 4.0,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N",
"version": "2.0"
},
"exploitabilityScore": 8.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "MEDIUM",
"userInteractionRequired": false
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 3.6
}
},
"lastModifiedDate": "2022-07-30T12:29Z",
"publishedDate": "2021-10-21T17:15Z"
}
}
}
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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.
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