Vulnerability Name:

CVE-2018-0221 (CCN-139999)

Assigned:2017-11-27
Published:2018-03-07
Updated:2019-10-09
Summary:A vulnerability in specific CLI commands for the Cisco Identity Services Engine (ISE) could allow an authenticated, local attacker to perform command injection to the underlying operating system or cause a hang or disconnect of the user session. The attacker needs valid administrator credentials for the device. The vulnerability is due to incomplete input validation of user input for certain CLI ISE configuration commands. An attacker could exploit this vulnerability by authenticating as an administrative user, issuing a specific CLI command, and entering crafted, malicious user input for the command parameters. An exploit could allow the attacker to perform command injection to the lower-level Linux operating system. It is also possible the attacker could cause the ISE user interface for this management session to hang or disconnect. Cisco Bug IDs: CSCvg95479.
CVSS v3 Severity:6.7 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)
5.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/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): High
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
5.6 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:L)
4.9 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): High
Availibility (A): Low
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
5.7 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:P/I:C/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Complete
Availibility (A): Partial
Vulnerability Type:CWE-78
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2018-0221

Source: BID
Type: Third Party Advisory, VDB Entry
103347

Source: CCN
Type: BID-103347
Cisco Identity Services Engine CVE-2018-0221 Local Command Injection Vulnerability

Source: SECTRACK
Type: Third Party Advisory, VDB Entry
1040471

Source: XF
Type: UNKNOWN
cisco-cve20180221-command-exec(139999)

Source: CCN
Type: Cisco Security Advisory cisco-sa-20180307-ise6
Cisco Identity Services Engine Command Injection to Underlying Operating System Vulnerability

Source: CONFIRM
Type: Vendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180307-ise6

Vulnerable Configuration:Configuration 1:
  • cpe:/a:cisco:identity_services_engine:2.0(0.249):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:identity_services_engine:2.1(0.474):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:identity_services_engine:2.2(0.470):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:identity_services_engine:2.2(0.903):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:identity_services_engine:2.3(0.298):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:identity_services_engine:2.4(0.192):*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:cisco:identity_services_engine:*:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    cisco identity services engine 2.0(0.249)
    cisco identity services engine 2.1(0.474)
    cisco identity services engine 2.2(0.470)
    cisco identity services engine 2.2(0.903)
    cisco identity services engine 2.3(0.298)
    cisco identity services engine 2.4(0.192)
    cisco identity services engine *