FKIE_CVE-2021-28505
Vulnerability from fkie_nvd - Published: 2022-04-14 21:15 - Updated: 2024-11-21 05:59
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Summary
On affected Arista EOS platforms, if a VXLAN match rule exists in an IPv4 access-list that is applied to the ingress of an L2 or an L3 port/SVI, the VXLAN rule and subsequent ACL rules in that access list will ignore the specified IP protocol.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| arista | eos | * | |
| arista | eos | * | |
| arista | ccs-710p-12 | - | |
| arista | ccs-710p-16p | - | |
| arista | ccs-720xp-24y6 | - | |
| arista | ccs-720xp-24zy4 | - | |
| arista | ccs-720xp-48y6 | - | |
| arista | ccs-720xp-48zc2 | - | |
| arista | ccs-720xp-96zc2 | - | |
| arista | ccs-722xpm-48y4 | - | |
| arista | ccs-722xpm-48zy8 | - | |
| arista | dcs-7010tx-48 | - | |
| arista | dcs-7050cx3-32s | - | |
| arista | dcs-7050cx3m-32s | - | |
| arista | dcs-7050sx3-48c8 | - | |
| arista | dcs-7050sx3-48yc12 | - | |
| arista | dcs-7050sx3-48yc8 | - | |
| arista | dcs-7050sx3-96yc8 | - | |
| arista | dcs-7050tx3-48c8 | - |
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"descriptions": [
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"value": "On affected Arista EOS platforms, if a VXLAN match rule exists in an IPv4 access-list that is applied to the ingress of an L2 or an L3 port/SVI, the VXLAN rule and subsequent ACL rules in that access list will ignore the specified IP protocol."
},
{
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}
],
"id": "CVE-2021-28505",
"lastModified": "2024-11-21T05:59:47.940",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 5.0,
"confidentialityImpact": "NONE",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 2.9,
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"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
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"published": "2022-04-14T21:15:08.427",
"references": [
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"source": "psirt@arista.com",
"tags": [
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"url": "https://www.arista.com/en/support/advisories-notices/security-advisories/15267-security-advisory-0073"
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
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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