CVE-2017-12340

A vulnerability in Cisco NX-OS System Software running on Cisco MDS Multilayer Director Switches, Cisco Nexus 7000 Series Switches, and Cisco Nexus 7700 Series Switches could allow an authenticated, local attacker to access the Bash shell of an affected device's operating system, even if the Bash shell is disabled on the system. The vulnerability is due to insufficient sanitization of user-supplied parameters that are passed to certain functions of the Python scripting sandbox of the affected system. An attacker could exploit this vulnerability to escape the scripting sandbox and enter the Bash shell of the operating system with the privileges of the authenticated user for the affected system. To exploit this vulnerability, the attacker must have local access to the affected system and be authenticated to the affected system with administrative or Python execution privileges. Cisco Bug IDs: CSCvd86513.

CVSS v3.0 4.2 MEDIUM
CVSS v2.0 4.6 MEDIUM

4.2^/10

CVSS v3.0 : MEDIUM

Vector : AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L

Exploitability : 0.8 / Impact : 3.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

4.6^/10

CVSS v2.0 : MEDIUM

Vector : AV:L/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 3.9 / Impact : 6.4

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-switch	Vendor Advisory
http://www.securityfocus.com/bid/102069

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Configurations

Configuration 1 (hide)

cpe:2.3:o:cisco:nx-os:8.1\(0.70\)s0:*:*:*:*:*:*:*

Information

Published : 2017-11-30 01:29

Updated : 2019-10-02 17:03

NVD link : CVE-2017-12340

Mitre link : CVE-2017-12340

JSON object : View

CWE

CWE-116

Improper Encoding or Escaping of Output

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Products Affected

cisco

nx-os

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