CVE-2018-5241

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Summary

CVECVE-2018-5241
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2018-05-29 13:29:00 UTC
Updated2021-07-08 16:37:00 UTC
DescriptionSymantec 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.

Risk And Classification

Problem Types: NVD-CWE-noinfo

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Broadcom Advanced Secure Gateway 6.6 All All All
Application Broadcom Advanced Secure Gateway 6.7 All All All
Application Broadcom Symantec Proxysg 6.5 All All All
Application Broadcom Symantec Proxysg 6.6 All All All
Application Broadcom Symantec Proxysg 6.7 All All All
Application Symantec Advanced Secure Gateway 6.6 All All All
Application Symantec Advanced Secure Gateway 6.7 All All All
Application Symantec Advanced Secure Gateway 6.6 All All All
Application Symantec Advanced Secure Gateway 6.7 All All All
Application Symantec Proxysg 6.5 All All All
Application Symantec Proxysg 6.6 All All All
Application Symantec Proxysg 6.7 All All All
Application Symantec Proxysg 6.5 All All All
Application Symantec Proxysg 6.6 All All All
Application Symantec Proxysg 6.7 All All All

References

ReferenceSourceLinkTags
Blue Coat ProxySG Lets Remote Users Bypass SAML Authentication on the Target System - SecurityTracker SECTRACK www.securitytracker.com Third Party Advisory, VDB Entry
Symantec Advanced Secure Gateway and ProxySG CVE-2018-5241 Authentication Bypass Vulnerability BID www.securityfocus.com Third Party Advisory, VDB Entry
SA167: SAML Authentication Bypass CONFIRM www.symantec.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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