CVE-2020-27131 Cisco Security Manager Java Deserialization Vulnerabilities
Unauthenticated remote attackers can execute arbitrary commands with SYSTEM privileges via insecure Java deserialization in Cisco Security Manager.
- 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-2020-27131?
CVE-2020-27131 is a high-severity unsafe deserialization vulnerability in Cisco Security Manager, published on 17 Nov 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Multiple vulnerabilities in the Java deserialization function that is used by Cisco Security Manager could allow an unauthenticated, remote attacker to execute arbitrary commands on an affected device. These vulnerabilities are due to insecure deserialization of user-supplied content by the affected software. An attacker could exploit these vulnerabilities by sending a malicious serialized Java object to a specific listener on an affected system. A successful exploit could allow the attacker to execute arbitrary commands on the device with the privileges of NT AUTHORITY\SYSTEM on the Windows target host. Cisco has not released software updates that address these vulnerabilities.
Which versions are affected by CVE-2020-27131?
It affects 1 product.
Products include Cisco Security Manager.
How do I fix CVE-2020-27131?
No fix has been published for CVE-2020-27131 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-2020-27131 being exploited?
There is no known exploitation of CVE-2020-27131 in the wild and no public exploit code.
Other vulnerabilities in Cisco Security Manager
Sources
Also known as GHSA-jwxx-hpqc-j7wm.