CVE-2023-20049
Vulnerability from cvelistv5
Published
2023-03-09 00:00
Modified
2024-10-28 16:33
Severity ?
EPSS score ?
Summary
Cisco IOS XR Software for ASR 9000 Series Routers Bidirectional Forwarding Detection Denial of Service Vulnerability
References
Impacted products
| ▼ | Vendor | Product |
|---|---|---|
| Cisco | Cisco IOS XR Software |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T08:57:35.607Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"name": "20230308 Cisco IOS XR Software for ASR 9000 Series Routers Bidirectional Forwarding Detection Denial of Service Vulnerability",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-bfd-XmRescbT"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2023-20049",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-10-28T16:24:40.994516Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-10-28T16:33:14.713Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Cisco IOS XR Software ",
"vendor": "Cisco",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"datePublic": "2023-03-08T00:00:00",
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in the bidirectional forwarding detection (BFD) hardware offload feature of Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers, ASR 9902 Compact High-Performance Routers, and ASR 9903 Compact High-Performance Routers could allow an unauthenticated, remote attacker to cause a line card to reset, resulting in a denial of service (DoS) condition. This vulnerability is due to the incorrect handling of malformed BFD packets that are received on line cards where the BFD hardware offload feature is enabled. An attacker could exploit this vulnerability by sending a crafted IPv4 BFD packet to an affected device. A successful exploit could allow the attacker to cause line card exceptions or a hard reset, resulting in loss of traffic over that line card while the line card reloads."
}
],
"exploits": [
{
"lang": "en",
"value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory. "
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.6,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-805",
"description": "CWE-805",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-03-09T00:00:00",
"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"shortName": "cisco"
},
"references": [
{
"name": "20230308 Cisco IOS XR Software for ASR 9000 Series Routers Bidirectional Forwarding Detection Denial of Service Vulnerability",
"tags": [
"vendor-advisory"
],
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-bfd-XmRescbT"
}
],
"source": {
"advisory": "cisco-sa-bfd-XmRescbT",
"defect": [
[
"CSCwc39336"
]
],
"discovery": "INTERNAL"
},
"title": "Cisco IOS XR Software for ASR 9000 Series Routers Bidirectional Forwarding Detection Denial of Service Vulnerability"
}
},
"cveMetadata": {
"assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"assignerShortName": "cisco",
"cveId": "CVE-2023-20049",
"datePublished": "2023-03-09T00:00:00",
"dateReserved": "2022-10-27T00:00:00",
"dateUpdated": "2024-10-28T16:33:14.713Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2023-20049\",\"sourceIdentifier\":\"ykramarz@cisco.com\",\"published\":\"2023-03-09T22:15:52.200\",\"lastModified\":\"2023-11-07T04:05:51.407\",\"vulnStatus\":\"Modified\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"A vulnerability in the bidirectional forwarding detection (BFD) hardware offload feature of Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers, ASR 9902 Compact High-Performance Routers, and ASR 9903 Compact High-Performance Routers could allow an unauthenticated, remote attacker to cause a line card to reset, resulting in a denial of service (DoS) condition. This vulnerability is due to the incorrect handling of malformed BFD packets that are received on line cards where the BFD hardware offload feature is enabled. An attacker could exploit this vulnerability by sending a crafted IPv4 BFD packet to an affected device. A successful exploit could allow the attacker to cause line card exceptions or a hard reset, resulting in loss of traffic over that line card while the line card reloads.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6},{\"source\":\"ykramarz@cisco.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\",\"baseScore\":8.6,\"baseSeverity\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":4.0}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-119\"}]},{\"source\":\"ykramarz@cisco.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-805\"}]}],\"configurations\":[{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"7.5.3\",\"matchCriteriaId\":\"873225C3-D2D1-41C0-9C75-016E53A7BBEB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"7.6\",\"versionEndExcluding\":\"7.6.2\",\"matchCriteriaId\":\"864E90A6-B93D-4213-85D8-A2D847848A9E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xr:7.7:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"0C8039EF-44D6-4C19-A3B3-37B75FB8D640\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asr_9000v-v2:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DB91BE23-C710-473F-8E43-0E0DE760F8AD\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asr_9001:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"324C97E6-1810-404F-9F45-6240F99FF039\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asr_9006:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"57EB55BB-41B7-40A1-B6F5-142FE8AB4C16\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asr_9010:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"433F4A82-04A4-4EAA-8C19-F7581DCD8D29\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asr_9901:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"2D5E60AB-94FF-448A-89D8-5D2197E21C74\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asr_9902:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"91474DBC-FB31-4DDF-96C5-311FA1D53A74\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asr_9903:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FA241214-2F05-4360-9B50-385355E29CF4\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asr_9904:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A93212A4-50AB-42E7-89A4-5FBBAEA050C3\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asr_9906:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"EDA53A61-98B3-458C-8893-61CD7D6B1E48\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asr_9910:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F396564E-B477-4A27-A189-CEB737552E25\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asr_9912:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"5445CC54-ACFB-4070-AF26-F91FEAA85181\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asr_9922:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D7AA58E5-D7E1-48CF-93FF-C60EB85B2BC7\"}]}]}],\"references\":[{\"url\":\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-bfd-XmRescbT\",\"source\":\"ykramarz@cisco.com\",\"tags\":[\"Vendor Advisory\"]}]}}"
}
}
Loading...
Loading...
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.