Vulnerability Details : CVE-2017-6649
A vulnerability in the CLI of Cisco NX-OS System Software 7.1 through 7.3 running on Cisco Nexus Series Switches could allow an authenticated, local attacker to perform a command injection attack. The vulnerability is due to insufficient input validation of command arguments. An attacker could exploit this vulnerability by injecting crafted command arguments into a vulnerable CLI command. An exploit could allow the attacker to read or write arbitrary files at the user's privilege level outside of the user's path. Cisco Bug IDs: CSCvb86787, CSCve60516, CSCve60555.
Vulnerability category: Input validation
Exploit prediction scoring system (EPSS) score for CVE-2017-6649
Probability of exploitation activity in the next 30 days: 0.04%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 6 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2017-6649
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
4.6
|
MEDIUM | AV:L/AC:L/Au:N/C:P/I:P/A:P |
3.9
|
6.4
|
NIST |
7.8
|
HIGH | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2017-6649
-
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by:
- nvd@nist.gov (Primary)
- ykramarz@cisco.com (Secondary)
-
The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-6649
-
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170517-nss
Cisco Nexus Series Switches CLI Command Injection VulnerabilityVendor Advisory
-
http://www.securitytracker.com/id/1038518
Cisco Nexus 5000 Series Switches Input Validation Flaw Lets Local Users Read and Write Files on the Target System - SecurityTracker
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http://www.securityfocus.com/bid/98531
Multiple Cisco Products CVE-2017-6649 Local Command Injection VulnerabilityThird Party Advisory;VDB Entry
Products affected by CVE-2017-6649
- cpe:2.3:o:cisco:nx-os:7.2\(0\)zz\(99.1\):*:*:*:*:*:*:*
- cpe:2.3:o:cisco:nx-os:7.2\(1\)n1\(1\):*:*:*:*:*:*:*
- cpe:2.3:o:cisco:nx-os:7.2\(0\)n1\(1\):*:*:*:*:*:*:*
- cpe:2.3:o:cisco:nx-os:7.1\(1\)n1\(1\):*:*:*:*:*:*:*
- cpe:2.3:o:cisco:nx-os:7.1\(3\)n1\(1\):*:*:*:*:*:*:*
- cpe:2.3:o:cisco:nx-os:7.1\(2\)n1\(1\):*:*:*:*:*:*:*
- cpe:2.3:o:cisco:nx-os:7.2\(0\)d1\(0.437\):*:*:*:*:*:*:*
- cpe:2.3:o:cisco:nx-os:7.1\(3\)n1\(3.12\):*:*:*:*:*:*:*
- cpe:2.3:o:cisco:nx-os:7.1\(3\)n1\(2.1\):*:*:*:*:*:*:*
- cpe:2.3:o:cisco:nx-os:7.1\(3\)n1\(2\):*:*:*:*:*:*:*
- cpe:2.3:o:cisco:nx-os:7.1\(4\)n1\(1\):*:*:*:*:*:*:*
- cpe:2.3:o:cisco:nx-os:7.3\(0\)n1\(1\):*:*:*:*:*:*:*