CVE-2018-15381 Cisco Unity Express Arbitrary Command Execution Vulnerability
Unauthenticated remote attackers can execute arbitrary shell commands with root privileges via insecure Java deserialization in Cisco Unity Express.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-15381?
CVE-2018-15381 is a critical unsafe deserialization vulnerability in Cisco Unity Express, published on 8 Nov 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A Java deserialization vulnerability in Cisco Unity Express (CUE) could allow an unauthenticated, remote attacker to execute arbitrary shell commands with the privileges of the root user. The vulnerability is due to insecure deserialization of user-supplied content by the affected software. An attacker could exploit this vulnerability by sending a malicious serialized Java object to the listening Java Remote Method Invocation (RMI) service. A successful exploit could allow the attacker to execute arbitrary commands on the device with root privileges.
Weakness: CWE-502
Which versions are affected by CVE-2018-15381?
It affects 1 product.
Products include Cisco Unity Express.
How do I fix CVE-2018-15381?
No fix has been published for CVE-2018-15381 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2018-15381 being exploited?
There is no known exploitation of CVE-2018-15381 in the wild and no public exploit code.
Other vulnerabilities in Cisco Unity Express
Sources
Also known as GHSA-8wm8-7pxp-g9m4.