CVE-2020-3367: Cisco Secure Web Appliance Privilege Escalation Vulnerability
First published: Wed Nov 18 2020(Updated: )
A vulnerability in the log subscription subsystem of Cisco AsyncOS for the Cisco Secure Web Appliance (formerly Web Security Appliance) could allow an authenticated, local attacker to perform command injection and elevate privileges to root. This vulnerability is due to insufficient validation of user-supplied input for the web interface and CLI. An attacker could exploit this vulnerability by authenticating to the affected device and injecting scripting commands in the scope of the log subscription subsystem. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system and elevate privileges to root.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco AsyncOS | <11.7.2-011 | |
| Cisco AsyncOS | >=11.8.0<11.8.2-009 | |
| Cisco AsyncOS | >=12.0.0<12.0.2 | |
| Cisco AsyncOS | >=12.5.0<12.5.1-011 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2020-3367?
CVE-2020-3367 has a critical severity rating due to its potential for command injection and privilege escalation.
How do I fix CVE-2020-3367?
To fix CVE-2020-3367, upgrade Cisco AsyncOS to a version that addresses this vulnerability, specifically versions beyond 11.7.2-011, between 11.8.0 and 11.8.2-009, or versions after 12.0.0 up to 12.5.1-011.
Which Cisco products are affected by CVE-2020-3367?
CVE-2020-3367 affects various versions of Cisco AsyncOS for the Cisco Secure Web Appliance.
Can CVE-2020-3367 be exploited remotely?
No, CVE-2020-3367 can only be exploited by an authenticated, local attacker.
What are the potential consequences of exploiting CVE-2020-3367?
Exploiting CVE-2020-3367 allows an attacker to perform command injection and potentially gain root privileges.
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