CVE-2019-1594
CVSS V2 Medium 6.1
CVSS V3 High 7.4
Description
A vulnerability in the 802.1X implementation for Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to incomplete input validation of Extensible Authentication Protocol over LAN (EAPOL) frames. An attacker could exploit this vulnerability by sending a crafted EAPOL frame to an interface on the targeted device. A successful exploit could allow the attacker to cause the Layer 2 (L2) forwarding process to restart multiple times, leading to a system-level restart of the device and a DoS condition. Note: This vulnerability affects only NX-OS devices configured with 802.1X functionality. Cisco Nexus 1000V Switch for VMware vSphere devices are affected in versions prior to 5.2(1)SV3(1.4b). Nexus 3000 Series Switches are affected in versions prior to 7.0(3)I7(4). Nexus 3500 Platform Switches are affected in versions prior to 7.0(3)I7(4). Nexus 2000, 5500, 5600, and 6000 Series Switches are affected in versions prior to 7.3(5)N1(1) and 7.1(5)N1(1b). Nexus 7000 and 7700 Series Switches are affected in versions prior to 8.2(3). Nexus 9000 Series Fabric Switches in ACI Mode are affected in versions prior to 13.2(1l). Nexus 9000 Series Switches in Standalone NX-OS Mode are affected in versions prior to 7.0(3)I7(4).
Overview
- CVE ID
- CVE-2019-1594
- Assigner
- ykramarz@cisco.com
- Vulnerability Status
- Modified
- Published Version
- 2019-03-06T22:29:00
- Last Modified Date
- 2019-10-09T23:47:24
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* | 1 | OR | 5.2\(1\)sv3\(1.4b\) | |
| cpe:2.3:h:cisco:nexus_1000v:-:*:*:*:*:vmware_vsphere:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* | 1 | OR | 7.0\(3\)i7 | 7.0\(3\)i7\(4\) |
| cpe:2.3:h:cisco:nexus_3000:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:nexus_3500:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* | 1 | OR | 7.1\(5\)n1\(1b\) | |
| cpe:2.3:h:cisco:nexus_2000:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:nexus_5500:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:nexus_5600:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:nexus_6000:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* | 1 | OR | 8.3 | 8.3\(1\) |
| cpe:2.3:h:cisco:nexus_7000:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:nexus_7700:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* | 1 | OR | 13.2\(1l\) | |
| cpe:2.3:h:cisco:nexus_9000:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* | 1 | OR | 7.0\(3\)i7 | 7.0\(3\)i7\(4\) |
| cpe:2.3:h:cisco:nexus_9000_in_standalone_nx-os_mode:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* | 1 | OR | 7.2 | 7.3\(5\)n1\(1\) |
| cpe:2.3:h:cisco:nexus_2000:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:nexus_5500:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:nexus_5600:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:nexus_6000:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* | 1 | OR | 8.0 | 8.2\(3\) |
| cpe:2.3:h:cisco:nexus_7000:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:nexus_7700:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* | 1 | OR | 7.2 | 7.3\(3\)d1\(1\) |
| cpe:2.3:h:cisco:nexus_7000:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:nexus_7700:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* | 1 | OR | 6.2 | 6.2\(20a\) |
| cpe:2.3:h:cisco:nexus_7000:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:nexus_7700:-:*:*:*:*:*:*:* | 0 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:A/AC:L/Au:N/C:N/I:N/A:C
- Access Vector
- ADJACENT_NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- COMPLETE
- Base Score
- 6.1
- Severity
- MEDIUM
- Exploitability Score
- 6.5
- Impact Score
- 6.9
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
- Attack Vector
- ADJACENT_NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- CHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 7.4
- Base Severity
- HIGH
- Exploitability Score
- 2.8
- Impact Score
- 4
References
| Reference URL | Reference Tags |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-nx-os-lan-auth | Patch Vendor Advisory |
| http://www.securityfocus.com/bid/107325 | Third Party Advisory VDB Entry |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2019-1594 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1594 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 17:03:08 | Added to TrackCVE | |||
| 2022-12-03 17:57:52 | psirt@cisco.com | ykramarz@cisco.com | CVE Assigner | updated |
| 2022-12-03 17:57:52 | 2019-03-06T22:29Z | 2019-03-06T22:29:00 | CVE Published Date | updated |
| 2022-12-03 17:57:52 | 2019-10-09T23:47:24 | CVE Modified Date | updated | |
| 2022-12-03 17:57:52 | Modified | Vulnerability Status | updated |