gsd-2020-3511
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
A vulnerability in the ISDN subsystem of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient input validation when the ISDN Q.931 messages are processed. An attacker could exploit this vulnerability by sending a malicious ISDN Q.931 message to an affected device. A successful exploit could allow the attacker to cause the process to crash, resulting in a reload of the affected device.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2020-3511",
"description": "A vulnerability in the ISDN subsystem of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient input validation when the ISDN Q.931 messages are processed. An attacker could exploit this vulnerability by sending a malicious ISDN Q.931 message to an affected device. A successful exploit could allow the attacker to cause the process to crash, resulting in a reload of the affected device.",
"id": "GSD-2020-3511"
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
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"id": "GSD-2020-3511",
"modified": "2023-12-13T01:22:10.340605Z",
"schema_version": "1.4.0"
}
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"DATE_PUBLIC": "2020-09-24T16:00:00",
"ID": "CVE-2020-3511",
"STATE": "PUBLIC",
"TITLE": "Cisco IOS and IOS XE Software ISDN Q.931 Denial of Service Vulnerability"
},
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{
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}
]
},
"exploit": [
{
"lang": "eng",
"value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory. "
}
],
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"baseScore": "7.4",
"vectorString": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H ",
"version": "3.0"
}
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{
"name": "20200924 Cisco IOS and IOS XE Software ISDN Q.931 Denial of Service Vulnerability",
"refsource": "CISCO",
"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-isdn-q931-dos-67eUZBTf"
}
]
},
"source": {
"advisory": "cisco-sa-iosxe-isdn-q931-dos-67eUZBTf",
"defect": [
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],
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}
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"accessVector": "ADJACENT_NETWORK",
"authentication": "NONE",
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"baseScore": 6.1,
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"scope": "CHANGED",
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"lastModifiedDate": "2023-05-23T13:55Z",
"publishedDate": "2020-09-24T18:15Z"
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}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- 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.