SB2019020708 - Security restrictions bypass in Cisco Web Security Appliance

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Main Vulnerability Database SB2019020708

SB2019020708 - Security restrictions bypass in Cisco Web Security Appliance

Published: February 7, 2019

Security Bulletin ID SB2019020708
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Security restrictions bypass (CVE-ID: CVE-2019-1672)

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to bypass security restrictions on the system.

The vulnerability exists in the Decryption Policy Default Action functionality due to the incorrect handling of SSL-encrypted traffic when Decrypt for End-User Notification is disabled in the configuration. A remote attacker can send a SSL connection through the affected device to bypass a configured drop policy to block specific SSL connections and allow traffic onto the network that should have been denied.


Remediation

Install update from vendor's website.

References