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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.93%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 0.93% probability · 59th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-287, CWE-347
- Affected
- cisco/duo network gateway
- Source
- security@duo.com
References
- https://duo.com/blog/duo-finds-saml-vulnerabilities-affecting-multiple-implementationsExploit, Vendor Advisory
- https://www.kb.cert.org/vuls/id/475445Third Party Advisory, US Government Resource
- https://duo.com/blog/duo-finds-saml-vulnerabilities-affecting-multiple-implementationsExploit, Vendor Advisory
- https://www.kb.cert.org/vuls/id/475445Third Party Advisory, US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.