CVE-2019-1756
CVSS V2 High 9
CVSS V3 High 7.2
Description
A vulnerability in Cisco IOS XE Software could allow an authenticated, remote attacker to execute commands on the underlying Linux shell of an affected device with root privileges. The vulnerability occurs because the affected software improperly sanitizes user-supplied input. An attacker who has valid administrator access to an affected device could exploit this vulnerability by supplying a username with a malicious payload in the web UI and subsequently making a request to a specific endpoint in the web UI. A successful exploit could allow the attacker to run arbitrary commands as the root user, allowing complete compromise of the system.
Overview
- CVE ID
- CVE-2019-1756
- Assigner
- ykramarz@cisco.com
- Vulnerability Status
- Modified
- Published Version
- 2019-03-28T01:29:00
- Last Modified Date
- 2019-10-09T23:47:59
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:cisco:ios:11.0\(20.3\):*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios:16.9\(1\):*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios_xe:3.2.0ja:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios_xe:16.7.1:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios_xe:16.7.1a:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios_xe:16.7.1b:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios_xe:16.7.2:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios_xe:16.7.3:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios_xe:16.8.1:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios_xe:16.8.1a:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios_xe:16.8.1b:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios_xe:16.8.1c:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios_xe:16.8.1d:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios_xe:16.8.1e:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios_xe:16.8.1s:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios_xe:16.8.2:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:S/C:C/I:C/A:C
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- SINGLE
- Confidentiality Impact
- COMPLETE
- Integrity Impact
- COMPLETE
- Availability Impact
- COMPLETE
- Base Score
- 9
- Severity
- HIGH
- Exploitability Score
- 8
- Impact Score
- 10
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- HIGH
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 7.2
- Base Severity
- HIGH
- Exploitability Score
- 1.2
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327-iosxe-cmdinject | Patch Vendor Advisory |
| http://www.securityfocus.com/bid/107598 | Third Party Advisory VDB Entry |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2019-1756 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1756 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 17:03:00 | Added to TrackCVE | |||
| 2022-12-03 18:46:41 | psirt@cisco.com | ykramarz@cisco.com | CVE Assigner | updated |
| 2022-12-03 18:46:41 | 2019-03-28T01:29Z | 2019-03-28T01:29:00 | CVE Published Date | updated |
| 2022-12-03 18:46:41 | 2019-10-09T23:47:59 | CVE Modified Date | updated | |
| 2022-12-03 18:46:41 | Modified | Vulnerability Status | updated |