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CVE-2021-27853 Layer-2 Vulnerability

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Vijay Sarvepalli 2022-09-27 13:49:51 -04:00
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2021/27xxx/CVE-2021-27853.json
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@ -4,15 +4,117 @@
"data_version": "4.0",
"CVE_data_meta": {
"ID": "CVE-2021-27853",
"ASSIGNER": "cve@mitre.org",
"STATE": "RESERVED"
"ASSIGNER": "cert@cert.org",
"DATE_PUBLIC": "2022-09-27T01:00:00.000Z",
"TITLE": "L2 network filtering can be bypassed using stacked VLAN0 and LLC/SNAP headers",
"STATE": "PUBLIC"
},
"source": {
"discovery": "EXTERNAL"
},
"affects": {
"vendor": {
"vendor_data": [
{
"vendor_name": "IEEE",
"product": {
"product_data": [
{
"product_name": "802.2",
"version": {
"version_data": [
{
"version_name": "802.2h-1997",
"version_affected": "<=",
"version_value": "802.2h-1997"
}
]
}
}
]
}
},
{
"vendor_name": "IETF",
"product": {
"product_data": [
{
"product_name": "draft-ietf-v6ops-ra-guard",
"version": {
"version_data": [
{
"version_name": "08",
"version_affected": "<=",
"version_value": "08"
}
]
}
}
]
}
},
{
"vendor_name": "IETF",
"product": {
"product_data": [
{
"product_name": "P802.1Q",
"version": {
"version_data": [
{
"version_name": "D1.0",
"version_affected": "<=",
"version_value": "D1.0"
}
]
}
}
]
}
}
]
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-290: Authentication Bypass by Spoofing"
}
]
}
]
},
"description": {
"description_data": [
{
"lang": "eng",
"value": "** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided."
"value": "Layer 2 network filtering capabilities such as IPv6 RA guard or ARP inspection can be bypassed using combinations of VLAN 0 headers and LLC/SNAP headers."
}
]
}
}
},
"references": {
"reference_data": [
{
"refsource": "CONFIRM",
"url": "https://datatracker.ietf.org/doc/draft-ietf-v6ops-ra-guard/08/"
},
{
"refsource": "CONFIRM",
"url": "https://standards.ieee.org/ieee/802.2/1048/"
},
{
"refsource": "CONFIRM",
"url": "https://standards.ieee.org/ieee/802.1Q/10323/"
}
]
},
"credit": [
{
"lang": "eng",
"value": "Etienne Champetier (@champtar) <champetier.etienne@gmail.com> "
}
]
}