Vulnerability Name:

CVE-2019-1966 (CCN-165975)

Assigned:2018-12-06
Published:2019-08-28
Updated:2020-10-16
Summary:A vulnerability in a specific CLI command within the local management (local-mgmt) context for Cisco UCS Fabric Interconnect Software could allow an authenticated, local attacker to gain elevated privileges as the root user on an affected device. The vulnerability is due to extraneous subcommand options present for a specific CLI command within the local-mgmt context. An attacker could exploit this vulnerability by authenticating to an affected device, entering the local-mgmt context, and issuing a specific CLI command and submitting user input. A successful exploit could allow the attacker to execute arbitrary operating system commands as root on an affected device. The attacker would need to have valid user credentials for the device.
CVSS v3 Severity:7.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
6.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
7.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
6.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:7.2 High (CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
6.8 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-noinfo
Vulnerability Consequences:Gain Privileges
References:Source: MITRE
Type: CNA
CVE-2019-1966

Source: XF
Type: UNKNOWN
cisco-cve20191966-priv-esc(165975)

Source: CCN
Type: Cisco Security Advisory cisco-sa-20190828-ucs-privescalation
Cisco Unified Computing System Fabric Interconnect root Privilege Escalation Vulnerability

Source: CISCO
Type: Vendor Advisory
20190828 Cisco Unified Computing System Fabric Interconnect root Privilege Escalation Vulnerability

Vulnerable Configuration:Configuration 1:
  • cpe:/o:cisco:nx-os:*:*:*:*:*:*:*:* (Version <= 3.2)
  • OR cpe:/o:cisco:nx-os:4.0:*:*:*:*:*:*:*
  • AND
  • cpe:/h:cisco:ucs_6248_up_fabric_interconnect:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:ucs_6296_up_fabric_interconnect:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:ucs_6324_fabric_interconnect:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:ucs_6332-16up_fabric_interconnect:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:ucs_6332_fabric_interconnect:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:ucs_6454_fabric_interconnect:-:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/a:cisco:unified_computing_system:3.2(3b)a:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:unified_computing_system:4.0(1a)a:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    cisco nx-os *
    cisco nx-os 4.0
    cisco ucs 6248 up fabric interconnect -
    cisco ucs 6296 up fabric interconnect -
    cisco ucs 6324 fabric interconnect -
    cisco ucs 6332-16up fabric interconnect -
    cisco ucs 6332 fabric interconnect -
    cisco ucs 6454 fabric interconnect -
    cisco unified computing system 3.2(3b)a
    cisco unified computing system 4.0(1a)a