All the vulnerabilites related to Cisco - Cisco Ultra Cloud Core - User Plane Function
cve-2023-20046
Vulnerability from cvelistv5
Published
2023-05-09 13:06
Modified
2024-08-02 08:57
Severity ?
EPSS score ?
Summary
A vulnerability in the key-based SSH authentication feature of Cisco StarOS Software could allow an authenticated, remote attacker to elevate privileges on an affected device.
This vulnerability is due to insufficient validation of user-supplied credentials. An attacker could exploit this vulnerability by sending a valid low-privileged SSH key to an affected device from a host that has an IP address that is configured as the source for a high-privileged user account. A successful exploit could allow the attacker to log in to the affected device through SSH as a high-privileged user.
There are workarounds that address this vulnerability.
References
Impacted products
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{
"providerMetadata": {
"dateUpdated": "2024-08-02T08:57:35.853Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
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"references": [
{
"name": "cisco-sa-staros-ssh-privesc-BmWeJC3h",
"tags": [
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"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-staros-ssh-privesc-BmWeJC3h"
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"status": "affected",
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"status": "affected",
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"status": "affected",
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"status": "affected",
"version": "21.26.5"
},
{
"status": "affected",
"version": "21.26.6"
},
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"status": "affected",
"version": "21.26.7"
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"status": "affected",
"version": "21.26.17"
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"status": "affected",
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"status": "affected",
"version": "21.27.1"
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"status": "affected",
"version": "21.27.2"
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"status": "affected",
"version": "21.27.3"
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"status": "affected",
"version": "21.27.4"
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"status": "affected",
"version": "21.27.5"
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"status": "affected",
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"status": "affected",
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"status": "affected",
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"status": "affected",
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]
},
{
"product": "Cisco Ultra Cloud Core - User Plane Function",
"vendor": "Cisco",
"versions": [
{
"status": "affected",
"version": "N/A"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in the key-based SSH authentication feature of Cisco StarOS Software could allow an authenticated, remote attacker to elevate privileges on an affected device.\r\n\r This vulnerability is due to insufficient validation of user-supplied credentials. An attacker could exploit this vulnerability by sending a valid low-privileged SSH key to an affected device from a host that has an IP address that is configured as the source for a high-privileged user account. A successful exploit could allow the attacker to log in to the affected device through SSH as a high-privileged user.\r\n\r There are workarounds that address this vulnerability."
}
],
"exploits": [
{
"lang": "en",
"value": "The Cisco PSIRT is aware that proof-of-concept exploit code is available for the vulnerability described in this advisory.\r\n\r\nThe Cisco PSIRT is not aware of any malicious use of the vulnerability that is described in this advisory."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "cvssV3_1"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-289",
"description": "Authentication Bypass by Alternate Name",
"lang": "en",
"type": "cwe"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-01-25T16:57:38.039Z",
"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"shortName": "cisco"
},
"references": [
{
"name": "cisco-sa-staros-ssh-privesc-BmWeJC3h",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-staros-ssh-privesc-BmWeJC3h"
}
],
"source": {
"advisory": "cisco-sa-staros-ssh-privesc-BmWeJC3h",
"defects": [
"CSCwd89468"
],
"discovery": "EXTERNAL"
}
}
},
"cveMetadata": {
"assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"assignerShortName": "cisco",
"cveId": "CVE-2023-20046",
"datePublished": "2023-05-09T13:06:10.748Z",
"dateReserved": "2022-10-27T18:47:50.317Z",
"dateUpdated": "2024-08-02T08:57:35.853Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}