Vulnerability Description
A vulnerability in the Bash shell implementation for Cisco NX-OS Software could allow an authenticated, local attacker to escalate their privilege level by executing commands authorized to other user roles. The attacker must authenticate with valid user credentials. The vulnerability is due to the incorrect implementation of a Bash shell command that allows role-based access control (RBAC) to be bypassed. An attacker could exploit this vulnerability by authenticating to the device and entering a crafted command at the Bash prompt. A successful exploit could allow the attacker to escalate their privilege level by executing commands that should be restricted to other roles. For example, a dev-ops user could escalate their privilege level to admin with a successful exploit of this vulnerability.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Nx-Os | >= 7.0\(3\)i5, < 7.0\(3\)i7\(4\) |
| Cisco | Nexus 3000 | - |
| Cisco | Nexus 3500 | - |
| Cisco | Nexus 3600 | - |
| Cisco | Nexus 7000 | - |
| Cisco | Nexus 7700 | - |
| Cisco | Nexus 9000 In Aci Mode | - |
| Cisco | Nexus 9000 In Standalone | - |
| Cisco | Nexus 9500 | All versions |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/107324Third Party AdvisoryVDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2PatchVendor Advisory
- http://www.securityfocus.com/bid/107324Third Party AdvisoryVDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2PatchVendor Advisory
FAQ
What is CVE-2019-1593?
CVE-2019-1593 is a vulnerability with a CVSS score of 7.8 (HIGH). A vulnerability in the Bash shell implementation for Cisco NX-OS Software could allow an authenticated, local attacker to escalate their privilege level by executing commands authorized to other user ...
How severe is CVE-2019-1593?
CVE-2019-1593 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-1593?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Nx-Os, Cisco Nexus 3000, Cisco Nexus 3500, Cisco Nexus 3600, Cisco Nexus 7000.