{ "CVE_data_meta": { "ASSIGNER": "psirt@cisco.com", "DATE_PUBLIC": "2019-05-15T16:00:00-0700", "ID": "CVE-2019-1730", "STATE": "PUBLIC", "TITLE": "Cisco NX-OS Software Bash Bypass Guest Shell Vulnerability" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "Cisco NX-OS Software", "version": { "version_data": [ { "affected": "<", "version_value": "8.3(1)" } ] } } ] }, "vendor_name": "Cisco" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "A vulnerability in the Bash shell implementation for Cisco NX-OS Software could allow an authenticated, local attacker to bypass the limited command set of the restricted Guest Shell and execute commands at the privilege level of a network-admin user outside of the Guest Shell. The attacker must authenticate with valid administrator device credentials. The vulnerability is due to the incorrect implementation of a CLI command that allows a Bash command to be incorrectly invoked on the Guest Shell CLI. An attacker could exploit this vulnerability by authenticating to the device and entering a crafted command at the Guest Shell prompt. A successful exploit could allow the attacker to issue commands that should be restricted by a Guest Shell account." } ] }, "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. " } ], "impact": { "cvss": { "baseScore": "6.0", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H ", "version": "3.0" } }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "CWE-264" } ] } ] }, "references": { "reference_data": [ { "name": "20190515 Cisco NX-OS Software Bash Bypass Guest Shell Vulnerability", "refsource": "CISCO", "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-bash-bypass" }, { "refsource": "BID", "name": "108397", "url": "http://www.securityfocus.com/bid/108397" } ] }, "source": { "advisory": "cisco-sa-20190515-nxos-bash-bypass", "defect": [ [ "CSCvh76090", "CSCvj01472", "CSCvj01497" ] ], "discovery": "INTERNAL" } }