title: Cisco NX-OS Software NX-API Arbitrary Code Execution Vulnerability
description: A vulnerability in the NX-API feature of Cisco NX-OS Software could allow an authenticated, local attacker to execute arbitrary code as root. The vulnerability is due to incorrect input validation in the NX-API feature. An attacker could exploit this vulnerability by sending a crafted HTTP or HTTPS request to an internal service on an affected device that has the NX-API feature enabled. A successful exploit could allow the attacker to cause a buffer overflow and execute arbitrary code as root. Note: The NX-API feature is disabled by default. MDS 9000 Series Multilayer Switches are affected in versions prior to 8.1(1). Nexus 3000 Series Switches are affected in versions prior to 7.0(3)I4(8) and 7.0(3)I7(1). Nexus 3500 Platform Switches are affected in versions prior to 6.0(2)A8(8). Nexus 3600 Platform Switches are affected in versions prior to 7.0(3)F3(5). Nexus 2000, 5500, 5600, and 6000 Series Switches are affected in versions prior to 7.3(2)N1(1). Nexus 7000 and 7700 Series Switches are affected in versions prior to 7.3(3)D1(1). Nexus 9000 Series Switches in Standalone NX-OS Mode are affected in versions prior to 7.0(3)I4(8) and 7.0(3)I7(1). Nexus 9500 R-Series Line Cards and Fabric Modules are affected in versions prior to 7.0(3)F3(5).
problem types: CWE-20
affected:
{
product: MDS 9000 Series Multilayer Switches
vendor: Cisco
versions:
lessThan: 8.1(1), status: affected, version: unspecified, versionType: custom
}
{
product: Nexus 3000 Series Switches
vendor: Cisco
versions:
lessThan: 7.0(3)I4(8), status: affected, version: unspecified, versionType: custom
lessThan: 7.0(3)I7(1), status: affected, version: unspecified, versionType: custom
}
{
product: Nexus 3500 Platform Switches
vendor: Cisco
versions:
lessThan: 6.0(2)A8(8), status: affected, version: unspecified, versionType: custom
}
{
product: Nexus 3600 Platform Switches
vendor: Cisco
versions:
lessThan: 7.0(3)F3(5), status: affected, version: unspecified, versionType: custom
}
{
product: Nexus 2000, 5500, 5600, and 6000 Series Switches
vendor: Cisco
versions:
lessThan: 7.3(2)N1(1), status: affected, version: unspecified, versionType: custom
}
{
product: Nexus 7000 and 7700 Series Switches
vendor: Cisco
versions:
lessThan: 7.3(3)D1(1), status: affected, version: unspecified, versionType: custom
}
{
product: Nexus 9000 Series Switches in Standalone NX-OS Mode
vendor: Cisco
versions:
lessThan: 7.0(3)I4(8), status: affected, version: unspecified, versionType: custom
lessThan: 7.0(3)I7(1), status: affected, version: unspecified, versionType: custom
}
{
product: Nexus 9500 R-Series Line Cards and Fabric Modules
vendor: Cisco
versions:
lessThan: 7.0(3)F3(5), status: affected, version: unspecified, versionType: custom
}
metrics:
cvssV3_0: [
attackComplexity: LOW
attackVector: LOCAL
availabilityImpact: HIGH
baseScore: 7.8
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: LOW
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
version: 3.0
]
exploits: 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.