CVE-2019-15992 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Remote Code Execution Vulnerability
Authenticated attackers can exploit a heap overflow in the Lua interpreter to execute arbitrary code with root privileges on Cisco ASA and FTD devices.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-15992?
CVE-2019-15992 is a high-severity memory corruption vulnerability in Cisco Adaptive Security Appliance, published on 23 Sep 2020. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A vulnerability in the implementation of the Lua interpreter integrated in Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to execute arbitrary code with root privileges on the underlying Linux operating system of an affected device. The vulnerability is due to insufficient restrictions on the allowed Lua function calls within the context of user-supplied Lua scripts. A successful exploit could allow the attacker to trigger a heap overflow condition and execute arbitrary code with root privileges on the underlying Linux operating system of an affected device.
Which versions are affected by CVE-2019-15992?
It affects 4 products.
Products include Cisco Adaptive Security Appliance, Cisco Adaptive Security Appliance Software, Cisco Secure Firewall Management Center, Cisco Secure Firewall Threat Defense.
How do I fix CVE-2019-15992?
No fix has been published for CVE-2019-15992 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2019-15992 being exploited?
There is no known exploitation of CVE-2019-15992 in the wild and no public exploit code.
Other vulnerabilities in Cisco Adaptive Security Appliance
- CVE-2021-1573 Denial of service in Cisco Adaptive Security Appliance Software
- CVE-2021-34793 Denial of service in Cisco Adaptive Security Appliance (ASA) Software
- CVE-2021-40117 Denial of service in Cisco Adaptive Security Appliance (ASA) Software
- CVE-2021-40118 Denial of service in Cisco Adaptive Security Appliance (ASA) Software
- CVE-2020-3304 Denial of service in Cisco Adaptive Security Appliance (ASA) Software
Sources
Also known as GHSA-pfrh-m7rq-gq4c.