CVE-2022-20920 (GCVE-0-2022-20920)
Vulnerability from cvelistv5
Published
2022-10-10 20:43
Modified
2024-09-16 20:42
CWE
Summary
A vulnerability in the SSH implementation of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker to cause an affected device to reload. This vulnerability is due to improper handling of resources during an exceptional situation. An attacker could exploit this vulnerability by continuously connecting to an affected device and sending specific SSH requests. A successful exploit could allow the attacker to cause the affected device to reload.
Impacted products
Vendor Product Version
Cisco Cisco IOS Version: n/a
Create a notification for this product.
Show details on NVD website


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          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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            "tags": [
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            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ssh-excpt-dos-FzOBQTnk"
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    "cna": {
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          "versions": [
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      "datePublic": "2022-09-28T00:00:00",
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        }
      ],
      "exploits": [
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          "lang": "en",
          "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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      "metrics": [
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          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
            "version": "3.1"
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        "advisory": "cisco-sa-ssh-excpt-dos-FzOBQTnk",
        "defect": [
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        "discovery": "INTERNAL"
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      "title": "Cisco IOS and IOS XE Software SSH Denial of Service  Vulnerability"
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  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
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    "datePublished": "2022-10-10T20:43:15.882133Z",
    "dateReserved": "2021-11-02T00:00:00",
    "dateUpdated": "2024-09-16T20:42:51.667Z",
    "state": "PUBLISHED"
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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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