CVE-2019-1596 Cisco NX-OS Software Bash Shell Privilege Escalation Vulnerability
An authenticated local attacker can escalate privileges to root on Cisco Nexus switches by exploiting incorrect permissions in the Bash shell implementation.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-1596?
CVE-2019-1596 is a high-severity vulnerability in Cisco Nx-Os, published on 7 Mar 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability in the Bash shell implementation for Cisco NX-OS Software could allow an authenticated, local attacker to escalate their privilege level to root. The attacker must authenticate with valid user credentials. The vulnerability is due to incorrect permissions of a system executable. 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 to root. Nexus 3000 Series Switches are affected in versions prior to 7.0(3)I7(4). Nexus 3500 Platform Switches are affected in versions prior to 7.0(3)I7(4). Nexus 3600 Platform Switches are affected in versions prior to 7.0(3)F3(5). Nexus 9000 Series Switches in Standalone NX-OS Mode are affected in versions prior to 7.0(3)I7(4). Nexus 9500 R-Series Line Cards and Fabric Modules are affected in versions prior to 7.0(3)F3(5).
Which versions are affected by CVE-2019-1596?
It affects 1 product.
Products include Cisco Nx-Os.
How do I fix CVE-2019-1596?
No fix has been published for CVE-2019-1596 yet. Limit exposure of the affected software until one is available.
Is CVE-2019-1596 being exploited?
There is no known exploitation of CVE-2019-1596 in the wild and no public exploit code.
Other vulnerabilities in Cisco Nx-Os
Sources
Also known as GHSA-gqv4-4m7f-x3p4.