PT-2020-4961 · Cisco · Cisco Secure Web Appliance+1

Alvaro Gutierrez Quiles · Published 2020-11-18 · Updated 2020-12-02 · CVE-2020-3367

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Cisco Secure Web Appliance (formerly Web Security Appliance) versions not specified

Description A vulnerability in the log subscription subsystem of Cisco AsyncOS could allow an authenticated, local attacker to perform command injection and elevate privileges to root. This issue 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.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

OS Command Injection

Weakness Enumeration

CWE-78

Related Identifiers

BDU:2020-05536

CVE-2020-3367

Affected Products

Cisco Asyncos

Cisco Secure Web Appliance

References · 6

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wsa-prv-esc-nPzWZrQj · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-05536 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2020-3367 · Security Note
• https://osv.dev/vulnerability/CVE-2020-3367 · Vendor Advisory
• https://t.me/cibsecurity/16537 · Telegram Post
• https://t.me/cvenotify/5783 · Telegram Post