PT-2019-11094 · Duo · Duo Network Gateway

Kelby Ludwig · Published 2019-04-17 · Updated 2020-10-02 · CVE-2018-7340

Positive Technologies (AI Summary)

CVSS v3.1

7.7

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: Duo Network Gateway versions 1.2.9 and earlier

Description: The issue may allow an attacker to manipulate SAML data without invalidating its cryptographic signature, potentially bypassing authentication to SAML service providers. This is due to incorrect utilization of XML DOM traversal and canonicalization APIs results.

Recommendations: For Duo Network Gateway versions 1.2.9 and earlier, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Improper Authentication

Improper Verification of Cryptographic Signature

Weakness Enumeration

CWE-287

CWE-347

Related Identifiers

CVE-2018-7340

Affected Products

Duo Network Gateway

References · 4

• 🔥 https://duo.com/blog/duo-finds-saml-vulnerabilities-affecting-multiple-implementations · Exploit
• https://osv.dev/vulnerability/CVE-2018-7340 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-7340 · Security Note
• https://kb.cert.org/vuls/id/475445 · Note