CVE-2020-3473
CVSS V2 High 7.2
CVSS V3 High 7.8
Description
A vulnerability in task group assignment for a specific CLI command in Cisco IOS XR Software could allow an authenticated, local CLI shell user to elevate privileges and gain full administrative control of the device. The vulnerability is due to incorrect mapping of a command to task groups within the source code. An attacker could exploit this vulnerability by first authenticating to the local CLI shell on the device and using the CLI command to bypass the task group–based checks. A successful exploit could allow the attacker to elevate privileges and perform actions on the device without authorization checks.
Overview
- CVE ID
- CVE-2020-3473
- Assigner
- ykramarz@cisco.com
- Vulnerability Status
- Analyzed
- Published Version
- 2020-09-04T03:15:10
- Last Modified Date
- 2020-09-09T19:50:55
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:* | 1 | OR | 5.0.0 | 7.0.12 |
| cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:* | 1 | OR | 7.1.0 | 7.2.1 |
| cpe:2.3:h:cisco:8201:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:8202:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:8808:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:8812:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:8818:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:* | 1 | OR | 5.0.0 | 6.6.3 |
| cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:* | 1 | OR | 7.0.0 | 7.0.2 |
| cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:* | 1 | OR | 7.1.0 | 7.1.1 |
| cpe:2.3:h:cisco:ios_xrv_9000:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:ncs_540:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:ncs_5501:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:ncs_5501-se:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:ncs_5502:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:ncs_5502-se:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:ncs_5508:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:ncs_5516:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:ncs_560:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:ncs_6000:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:ncs_6008:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:* | 1 | OR | 5.0.0 | 6.5.29 |
| cpe:2.3:h:cisco:ncs_4009:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:ncs_4016:-:*:*:*:*:*:*:* | 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:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 7.8
- Base Severity
- HIGH
- Exploitability Score
- 1.8
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-LJtNFjeN | Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-3473 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-3473 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:24:53 | Added to TrackCVE | |||
| 2022-12-04 22:03:06 | psirt@cisco.com | ykramarz@cisco.com | CVE Assigner | updated |
| 2022-12-04 22:03:06 | 2020-09-04T03:15Z | 2020-09-04T03:15:10 | CVE Published Date | updated |
| 2022-12-04 22:03:06 | 2020-09-09T19:50:55 | CVE Modified Date | updated | |
| 2022-12-04 22:03:06 | Analyzed | Vulnerability Status | updated |