CVE-2019-1727
CVSS V2 High 7.2
CVSS V3 Medium 6.7
Description
A vulnerability in the Python scripting subsystem of Cisco NX-OS Software could allow an authenticated, local attacker to escape the Python parser and issue arbitrary commands to elevate the attacker's privilege level. The vulnerability is due to insufficient sanitization of user-supplied parameters that are passed to certain Python functions in the scripting sandbox of the affected device. An attacker could exploit this vulnerability to escape the scripting sandbox and execute arbitrary commands to elevate the attacker's privilege level. To exploit this vulnerability, the attacker must have local access and be authenticated to the targeted device with administrative or Python execution privileges. These requirements could limit the possibility of a successful exploit.
Overview
- CVE ID
- CVE-2019-1727
- Assigner
- ykramarz@cisco.com
- Vulnerability Status
- Analyzed
- Published Version
- 2019-05-15T17:29:01
- Last Modified Date
- 2020-10-16T13:09:58
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* | 1 | OR | 5.2 | 8.1\(1b\) |
| cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* | 1 | OR | 8.2 | 8.3\(1\) |
| cpe:2.3:h:cisco:mds_9000:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:mds_9100:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:mds_9200:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:mds_9500:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:mds_9700:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* | 1 | OR | 7.0\(3\)i4 | 7.0\(3\)i4\(8\) |
| cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* | 1 | OR | 7.0\(3\)i5 | 7.0\(3\)i7\(3\) |
| cpe:2.3:h:cisco:nexus_3000:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:nexus_3100:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:nexus_3100-z:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:nexus_3100v:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:nexus_3200:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:nexus_3400:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:nexus_3500:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:nexus_3524-x:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:nexus_3524-xl:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:nexus_3548-x:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:nexus_3548-xl:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:nexus_3600:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:nexus_9000:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:nexus_9200:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:nexus_9300:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:nexus_9500:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* | 1 | OR | 7.3 | 7.3\(4\)n1\(1\) |
| cpe:2.3:h:cisco:nexus_5500:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:nexus_5600:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:nexus_6000:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* | 1 | OR | 6.2 | 7.3\(3\)d1\(1\) |
| cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* | 1 | OR | 8.0 | 8.3\(1\) |
| cpe:2.3:h:cisco:nexus_7000:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:nexus_7700:-:*:*:*:*:*:*:* | 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:H/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- HIGH
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 6.7
- Base Severity
- MEDIUM
- Exploitability Score
- 0.8
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-pyth-escal | Vendor Advisory |
| http://www.securityfocus.com/bid/108341 | Third Party Advisory VDB Entry |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2019-1727 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1727 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 17:07:46 | Added to TrackCVE | |||
| 2022-12-03 20:41:42 | psirt@cisco.com | ykramarz@cisco.com | CVE Assigner | updated |
| 2022-12-03 20:41:42 | 2019-05-15T17:29Z | 2019-05-15T17:29:01 | CVE Published Date | updated |
| 2022-12-03 20:41:42 | 2020-10-16T13:09:58 | CVE Modified Date | updated | |
| 2022-12-03 20:41:42 | Analyzed | Vulnerability Status | updated |