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Vulnerability of Cisco Nexus 9000 ACI: privilege escalation via Symbolic Link Path Traversal

Synthesis of the vulnerability 

An attacker can bypass restrictions via Symbolic Link Path Traversal of Cisco Nexus 9000 ACI, in order to escalate his privileges.
Vulnerable software: Nexus by Cisco, NX-OS.
Severity of this announce: 2/4.
Creation date: 02/05/2019.
Références of this computer vulnerability: cisco-sa-20190501-fabric-traversal, CSCvo80695, CVE-2019-1836, VIGILANCE-VUL-29185.

Description of the vulnerability 

An attacker can bypass restrictions via Symbolic Link Path Traversal of Cisco Nexus 9000 ACI, in order to escalate his privileges.
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This cybersecurity alert impacts software or systems such as Nexus by Cisco, NX-OS.

Our Vigil@nce team determined that the severity of this weakness is medium.

The trust level is of type confirmed by the editor, with an origin of user account.

An attacker with a expert ability can exploit this security weakness.

Solutions for this threat 

Cisco Nexus 9000 ACI: solution CSCvo80695.
The solution is described on the Cisco site:
  https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvo80695
  https://tools.cisco.com/bugsearch/bug/CSCvo80695
  https://tools.cisco.com/quickview/bug/CSCvo80695
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