CVE-2019-1732
CVSS V2 Medium 6.9
CVSS V3 Medium 6.4
Description
A vulnerability in the Remote Package Manager (RPM) subsystem of Cisco NX-OS Software could allow an authenticated, local attacker with administrator credentials to leverage a time-of-check, time-of-use (TOCTOU) race condition to corrupt local variables, which could lead to arbitrary command injection. The vulnerability is due to the lack of a proper locking mechanism on critical variables that need to stay static until used. An attacker could exploit this vulnerability by authenticating to an affected device and issuing a set of RPM-related CLI commands. A successful exploit could allow the attacker to perform arbitrary command injection. The attacker would need administrator credentials for the targeted device.
Overview
- CVE ID
- CVE-2019-1732
- Assigner
- ykramarz@cisco.com
- Vulnerability Status
- Analyzed
- Published Version
- 2019-05-15T17:29:01
- Last Modified Date
- 2021-11-03T15:23:39
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* | 1 | OR | 7.0\(3\)i4 | 7.0\(3\)i7\(4\) |
| 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_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 | 7.0\(3\) | 7.0\(3\)f3\(5\) |
| cpe:2.3:h:cisco:nexus_3600:-:*:*:*:*:*:*:* | 0 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:M/Au:N/C:C/I:C/A:C
- Access Vector
- LOCAL
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- COMPLETE
- Integrity Impact
- COMPLETE
- Availability Impact
- COMPLETE
- Base Score
- 6.9
- Severity
- MEDIUM
- Exploitability Score
- 3.4
- Impact Score
- 10
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- HIGH
- Privileges Required
- HIGH
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 6.4
- Base Severity
- MEDIUM
- Exploitability Score
- 0.5
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-rpm-injec | Vendor Advisory |
| http://www.securityfocus.com/bid/108361 | Third Party Advisory VDB Entry |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2019-1732 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1732 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:48:36 | Added to TrackCVE | |||
| 2022-12-03 20:42:01 | psirt@cisco.com | ykramarz@cisco.com | CVE Assigner | updated |
| 2022-12-03 20:42:01 | 2019-05-15T17:29Z | 2019-05-15T17:29:01 | CVE Published Date | updated |
| 2022-12-03 20:42:01 | 2021-11-03T15:23:39 | CVE Modified Date | updated | |
| 2022-12-03 20:42:01 | Analyzed | Vulnerability Status | updated |