Auth bypass in Cisco Duo Network Gateway
CVE-2018-7340
Duo Network Gateway 1.2.9 and earlier may incorrectly utilize the results of XML DOM traversal and canonicalization APIs in such a way that an attacker may be able to manipulate the SAML data without invalidating the cryptographic signature, allowing the attack to potentially bypass authentication to SAML service providers.
Vulnerability class: Broken Authentication
EPSS: 0.009 (57.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
Affected products
- Cisco Duo_network_gateway
- Duo Security Network Gateway — versions unspecified
Weakness classification (CWE)
References
- security@duo.com (Exploit, x_refsource_MISC, Vendor Advisory)
- security@duo.com (US Government Resource, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2018-7340?
- CVE-2018-7340 is a high-severity vulnerability in Cisco Duo Network Gateway, classified under Improper Authentication. CVSS score: 7.5/10. Published 2019-04-17.
- How severe is CVE-2018-7340?
- High severity. CVSS v3 base score is 7.5 out of 10.