Vulnerability CVE-2021-1382

Vulnerability Name:

CVE-2021-1382 (CCN-198733)

Assigned:

2020-11-13

Published:

2021-03-24

Updated:

2022-09-30

Summary:

A vulnerability in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to inject arbitrary commands to be executed with root privileges on the underlying operating system. This vulnerability is due to insufficient input validation on certain CLI commands. An attacker could exploit this vulnerability by authenticating to the device and submitting crafted input to the CLI. The attacker must be authenticated as an administrative user to execute the affected commands. A successful exploit could allow the attacker to execute commands with root privileges.

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

6.0 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N)
5.2 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N/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): None

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

6.2 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:C/I:C/A:N)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): None

Vulnerability Type:

CWE-78
CWE-77

Vulnerability Consequences:

Gain Access

References:

Source: MITRE
Type: CNA
CVE-2021-1382

Source: XF
Type: UNKNOWN
cisco-cve20211382-commad-exec(198733)

Source: MISC
Type: Exploit, Third Party Advisory
https://github.com/orangecertcc/security-research/security/advisories/GHSA-7xfm-92p7-qc57

Source: CCN
Type: Cisco Security Advisory cisco-sa-xesdwcinj-t68PPW7m
Cisco IOS XE SD-WAN Software Command Injection Vulnerability

Source: CISCO
Type: Vendor Advisory
20210324 Cisco IOS XE SD-WAN Software Command Injection Vulnerability

Vulnerable Configuration:

Configuration 1:

cpe:/o:cisco:ios_xe:*:*:*:*:*:*:*:* (Version >= 17.6.0 and < 17.6.1a)

OR cpe:/o:cisco:ios_xe:*:*:*:*:*:*:*:* (Version >= 17.5.0 and < 17.5.1a)

OR cpe:/o:cisco:ios_xe:*:*:*:*:*:*:*:* (Version < 17.3.3)

OR cpe:/o:cisco:ios_xe:*:*:*:*:*:*:*:* (Version >= 17.4.1 and <= 17.4.2)

Denotes that component is vulnerable

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