cvedb.io
CVE-2018-5241
CRITICAL · CVSS 9.8
EPSS exploitation probability: 0%
Published 2018-05-29T13:29:00.617 · Last modified 2026-06-17T01:59:54.100

Summary

Symantec Advanced Secure Gateway (ASG) 6.6 and 6.7, and ProxySG 6.5, 6.6, and 6.7 are susceptible to a SAML authentication bypass vulnerability. The products can be configured with a SAML authentication realm to authenticate network users in intercepted proxy traffic. When parsing SAML responses, ASG and ProxySG incorrectly handle XML nodes with comments. A remote attacker can modify a valid SAML response without invalidating its cryptographic signature. This may allow the attacker to bypass user authentication security controls in ASG and ProxySG. This vulnerability only affects authentication of network users in intercepted traffic. It does not affect administrator user authentication for the ASG and ProxySG management consoles.

Affected products

broadcom — advanced_secure_gateway

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.