RCE in Cisco Asyncos
CVE-2020-3367
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.
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.008 (54.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Cisco Asyncos
- Cisco Web Security Appliance (Wsa) — versions n/a
Weakness classification (CWE)
References
- psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-3367?
- CVE-2020-3367 is a high-severity vulnerability in Cisco Asyncos, classified under OS Command Injection. CVSS score: 7.8/10. Published 2020-11-18.
- How severe is CVE-2020-3367?
- High severity. CVSS v3 base score is 7.8 out of 10.