CVE-2019-1876

Name: CVE-2019-1876
Creator: NVD / NIST
Published: 2019-06-20T03:15:12.167+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.77%

Last modified Jun 17, 2026

CVE-2019-1876 is a vulnerability of currently unknown severity. A vulnerability in the HTTPS proxy feature of Cisco Wide Area Application Services (WAAS) Software could allow an unauthenticated, remote attacker to use the Central Manager as an HTTPS proxy. The vulnerability is due to insufficient authentication of proxy connection requests. EPSS estimates a 1.77% chance of exploitation in the next 30 days.

Description

A vulnerability in the HTTPS proxy feature of Cisco Wide Area Application Services (WAAS) Software could allow an unauthenticated, remote attacker to use the Central Manager as an HTTPS proxy. The vulnerability is due to insufficient authentication of proxy connection requests. An attacker could exploit this vulnerability by sending a malicious HTTPS CONNECT message to the Central Manager. A successful exploit could allow the attacker to access public internet resources that would normally be blocked by corporate policies.

Metrics

EPSS Probability

1.77%

75.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Cisco	Wide Area Application Services	5.5\(7\)
Cisco	Wide Area Application Services	6.1\(1\)
Cisco	Wide Area Application Services	6.4\(3b\)

References

http://www.securityfocus.com/bid/108863Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190619-waas-authbypassVendor Advisory
http://www.securityfocus.com/bid/108863Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190619-waas-authbypassVendor Advisory

Timeline

Published: Jun 20, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-1876?

How severe is CVE-2019-1876?

Severity scoring for CVE-2019-1876 is pending analysis. The EPSS model estimates a 1.77% probability of exploitation in the next 30 days.

How do I fix CVE-2019-1876?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-1876?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST