CVE-2019-1672

Cisco Web Security Appliance Decryption Policy Bypass Vulnerability

Description

A vulnerability in the Decryption Policy Default Action functionality of the Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to bypass a configured drop policy and allow traffic onto the network that should have been denied. The vulnerability is due to the incorrect handling of SSL-encrypted traffic when Decrypt for End-User Notification is disabled in the configuration. An attacker could exploit this vulnerability by sending a SSL connection through the affected device. A successful exploit could allow the attacker to bypass a configured drop policy to block specific SSL connections. Releases 10.1.x and 10.5.x are affected.

Category

5.8
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.21%
Vendor Advisory cisco.com
Affected: Cisco Cisco Web Security Appliance (WSA)
Published at:
Updated at:

References

Link Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190206-wsa-bypass third party advisory vendor advisory
http://www.securityfocus.com/bid/106904 third party advisory vdb entry

Frequently Asked Questions

What is the severity of CVE-2019-1672?
CVE-2019-1672 has been scored as a medium severity vulnerability.
How to fix CVE-2019-1672?
To fix CVE-2019-1672, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-1672 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2019-1672 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2019-1672?
CVE-2019-1672 affects Cisco Cisco Web Security Appliance (WSA).
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