CVE-2021-1371
CVSS V2 High 7.2
CVSS V3 Medium 6.6
Description
A vulnerability in the role-based access control of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker with read-only privileges to obtain administrative privileges by using the console port when the device is in the default SD-WAN configuration. This vulnerability occurs because the default configuration is applied for console authentication and authorization. An attacker could exploit this vulnerability by connecting to the console port and authenticating as a read-only user. A successful exploit could allow a user with read-only permissions to access administrative privileges.
Overview
- CVE ID
- CVE-2021-1371
- Assigner
- ykramarz@cisco.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-03-24T21:15:11
- Last Modified Date
- 2021-03-31T13:08:43
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:o:cisco:ios_xe_sd-wan:17.2.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:cisco:cloud_services_router_1000v:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:asr_1000:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:isr_1100:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:isr_1101:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:isr_1109:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:isr_1111x:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:isr_111x:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:isr_1120:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:isr_1160:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:isr_4221:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:isr_4321:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:isr_4331:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:isr_4351:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:isr_4431:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:isr_4451:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:isr_4461:-:*:*:*:*:*:*:* | 0 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:L/Au:N/C:C/I:C/A:C
- Access Vector
- LOCAL
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- COMPLETE
- Integrity Impact
- COMPLETE
- Availability Impact
- COMPLETE
- Base Score
- 7.2
- Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 10
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- PHYSICAL
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 6.6
- Base Severity
- MEDIUM
- Exploitability Score
- 0.7
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-esc-rSNVvTf9 | Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-1371 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1371 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:17:39 | Added to TrackCVE | |||
| 2022-12-06 00:22:26 | psirt@cisco.com | ykramarz@cisco.com | CVE Assigner | updated |
| 2022-12-06 00:22:26 | 2021-03-24T21:15Z | 2021-03-24T21:15:11 | CVE Published Date | updated |
| 2022-12-06 00:22:26 | 2021-03-31T13:08:43 | CVE Modified Date | updated | |
| 2022-12-06 00:22:26 | Analyzed | Vulnerability Status | updated |