A vulnerability in the SSH CLI key management functionality of Cisco NX-OS Software could allow an authenticated, local attacker to expose a user's private SSH key to all authenticated users on the targeted device. The attacker must authenticate with valid administrator device credentials. The vulnerability is due to incomplete error handling if a specific error type occurs during the SSH key export. An attacker could exploit this vulnerability by authenticating to the device and entering a crafted command at the CLI. A successful exploit could allow the attacker to expose a user's private SSH key. In addition, a similar type of error in the SSH key import could cause the passphrase-protected private SSH key to be imported unintentionally.
Attack Vector Local
Attack Complexity Low
Privileges Required High
Scope Unchanged
Confidentiality Impact High
Integrity Impact None
Availability Impact None
User Interaction None
Attack Vector Local
Attack Complexity Low
Privileges Required High
Scope Unchanged
Confidentiality Impact High
Integrity Impact Low
Availability Impact None
User Interaction None
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None
AV:L/AC:L/Au:N/C:P/I:N/A:N
Vendors | Products |
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Cisco |
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Configuration 1 [-]
AND |
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Configuration 2 [-]
AND |
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Configuration 3 [-]
AND |
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Configuration 4 [-]
AND |
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References
Link | Resource |
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http://www.securityfocus.com/bid/108353 | Third Party Advisory VDB Entry |
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-ssh-info | Vendor Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: cisco
Published: 2019-05-15T00:00:00
Updated: 2019-05-17T06:06:02
Reserved: 2018-12-06T00:00:00
Link: CVE-2019-1731
JSON object: View
NVD Information
Status : Analyzed
Published: 2019-05-15T17:29:01.780
Modified: 2020-10-09T17:14:10.087
Link: CVE-2019-1731
JSON object: View
Redhat Information
No data.