Cisco Adaptive Security Appliance
CVE-2019-15992
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.
What this means for your business
- It affects Cisco Adaptive Security Appliance. It matters if your company, or a supplier that handles your data, runs it.
- An attacker can use it remotely, over a network, with an administrator login, and without anyone at your company clicking anything.
What to do
- 1Check whether your company or your suppliers run Cisco Adaptive Security Appliance, and which version. The affected versions are listed further down this page.
- 2If you do, apply the vendor's fix. A patch or vendor advisory has been published.
Not sure if your company is exposed?
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Scoring
- CVSS
- 7.2 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H- Weakness
- CWE-119
- Assigned by
- psirt@cisco.com
Dates
- Published
- 2020-09-23
- Last modified
- 2026-08-11
- Sources
- NVD
Affected products
- Cisco Adaptive Security Appliance- 9.6.4.36
- Cisco Adaptive Security Appliance Software9.7 - 9.8.4.15, 9.9 - 9.9.2.61, 9.10 - 9.10.1.32, 9.12 - 9.12.3, 9.13 - 9.13.1.4, 9.14 - 9.14.2.7, 9.15 - 9.15.1.4
- Cisco Secure Firewall Management Center- 6.2.3.16, 6.3.0 - 6.3.0.6, 6.4.0 - 6.4.0.7, 6.5.0 - 6.5.0.2
- Cisco Secure Firewall Threat Defenseall versions
As listed in the NVD configuration data. Not a statement about your estate.