CVE-2019-15992: Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Remote Code Execution Vulnerability
First published: Wed Sep 23 2020(Updated: )
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.
Credit: ykramarz@cisco.com ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Adaptive Security Appliance | <9.6.4.36 | |
| Cisco Adaptive Security Appliance Software | >=9.7<9.8.4.15 | |
| Cisco Adaptive Security Appliance Software | >=9.9<9.9.2.61 | |
| Cisco Adaptive Security Appliance Software | >=9.10<9.10.1.32 | |
| Cisco Adaptive Security Appliance Software | >=9.12<9.12.3 | |
| Cisco Adaptive Security Appliance Software | >=9.13<9.13.1.4 | |
| Cisco Adaptive Security Appliance Software | >=9.14<9.14.2.7 | |
| Cisco Adaptive Security Appliance Software | >=9.15<9.15.1.4 | |
| Cisco Firepower Management Center | <6.2.3.16 | |
| Cisco Firepower Management Center | >=6.3.0<6.3.0.6 | |
| Cisco Firepower Management Center | >=6.4.0<6.4.0.7 | |
| Cisco Firepower Management Center | >=6.5.0<6.5.0.2 | |
| Cisco Firepower Threat Defense |
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Reference Links
Frequently Asked Questions
What is CVE-2019-15992?
CVE-2019-15992 is a vulnerability in the implementation of the Lua interpreter integrated in Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software.
What is the severity of CVE-2019-15992?
The severity of CVE-2019-15992 is considered critical with a severity value of 7.2.
How does CVE-2019-15992 affect Cisco Adaptive Security Appliance Software?
CVE-2019-15992 affects Cisco Adaptive Security Appliance Software versions 9.6.4.36 and earlier, 9.7.x, 9.8.x, 9.9.x, 9.10.x, 9.12.x, 9.13.x, 9.14.x, and 9.15.x.
How does CVE-2019-15992 affect Cisco Firepower Threat Defense?
CVE-2019-15992 affects Cisco Firepower Threat Defense versions earlier than 6.2.3.16, 6.3.x, 6.4.x, and 6.5.x.
How can I fix CVE-2019-15992?
To fix CVE-2019-15992, it is recommended to upgrade to a fixed version of Cisco Adaptive Security Appliance Software or Cisco Firepower Threat Defense software as mentioned in the Cisco Security Advisory.
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