CVE-2018-0428 Privilege escalation in Web Security Appliance
An authenticated local attacker with admin credentials can exploit improper access controls to escape the CLI subshell and execute system commands as root.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-0428?
CVE-2018-0428 is a medium-severity vulnerability in Cisco Web Security Appliance, published on 15 Aug 2018. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability in the account management subsystem of Cisco Web Security Appliance (WSA) could allow an authenticated, local attacker to elevate privileges to root. The attacker must authenticate with valid administrator credentials. The vulnerability is due to improper implementation of access controls. An attacker could exploit this vulnerability by authenticating to the device as a specific user to gain the information needed to elevate privileges to root in a separate login shell. A successful exploit could allow the attacker to escape the CLI subshell and execute system-level commands on the underlying operating system as root. Cisco Bug IDs: CSCvj93548.
Which versions are affected by CVE-2018-0428?
It affects 1 product.
Products include Cisco Web Security Appliance.
How do I fix CVE-2018-0428?
No fix has been published for CVE-2018-0428 yet. Limit exposure of the affected software until one is available.
Is CVE-2018-0428 being exploited?
There is no known exploitation of CVE-2018-0428 in the wild and no public exploit code.
Other vulnerabilities in Cisco Web Security Appliance
Sources
Also known as GHSA-pc4c-2gp7-ch65.