TI-2016-08331 Aliases CVE-2016-10257 GHSA-vfc6-mrqm-f3vr

Cross-site scripting in Symantec ASG

LOW 30CWE-79Published 2018-01-10 · Updated 2024-09-16

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

The Symantec Advanced Secure Gateway (ASG) 6.6, ASG 6.7 (prior to 6.7.2.1), ProxySG 6.5 (prior to 6.5.10.6), ProxySG 6.6, and ProxySG 6.7 (prior to 6.7.2.1) management console is susceptible to a reflected XSS vulnerability. A remote attacker can use a crafted management console URL in a phishing attack to inject arbitrary JavaScript code into the management console web client application. This is a separate vulnerability from CVE-2016-10256.

Why it matters now

EPSS 0.01473 73rd percentileScored 2026-11-07

Fix Fixed ASG (Symantec Corporation): 6.7.2.1ProxySG (Symantec Corporation): 6.5.10.6, 6.7.2.1

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Symantec	ASG	6.6; 6.7 to before 6.7.2.1	6.7.2.1	Patch available	CNA
Symantec	ProxySG	6.5 to before 6.5.10.6; 6.6; 6.7 to before 6.7.2.1	6.5.10.6, 6.7.2.1	Patch available	CNA

ASG VendorSymantec Affected 6.6; 6.7 to before 6.7.2.1 Fixed in 6.7.2.1 Patch available CNA
ProxySG VendorSymantec Affected 6.5 to before 6.5.10.6; 6.6; 6.7 to before 6.7.2.1 Fixed in 6.5.10.6, 6.7.2.1 Patch available CNA

CPE configurations NVD · 4

CPE	Versions	Role	Vendor
cpe:2.3:a:broadcom:advanced_secure_gateway::::::::	6.7 to before 6.7.2.1	Vulnerable	Broadcom
cpe:2.3:a:broadcom:advanced_secure_gateway:6.6:::::::*	6.6	Vulnerable	Broadcom
cpe:2.3:a:broadcom:symantec_proxysg::::::::	6.5 to before 6.5.10.6; 6.7 to before 6.7.2.1	Vulnerable	Broadcom
cpe:2.3:a:broadcom:symantec_proxysg:6.6:::::::*	6.6	Vulnerable	Broadcom

cpe:2.3:a:broadcom:advanced_secure_gateway:*:*:*:*:*:*:*:* Versions 6.7 to before 6.7.2.1 Vulnerable ·Broadcom
cpe:2.3:a:broadcom:advanced_secure_gateway:6.6:*:*:*:*:*:*:* Versions 6.6 Vulnerable ·Broadcom
cpe:2.3:a:broadcom:symantec_proxysg:*:*:*:*:*:*:*:* Versions 6.5 to before 6.5.10.6; 6.7 to before 6.7.2.1 Vulnerable ·Broadcom
cpe:2.3:a:broadcom:symantec_proxysg:6.6:*:*:*:*:*:*:* Versions 6.6 Vulnerable ·Broadcom

Remediation

Fix · CNA ASG (Symantec Corporation) Fixed in 6.7.2.1
Fix · CNA ProxySG (Symantec Corporation) Fixed in 6.5.10.6, 6.7.2.1

Timeline

2026-10-02 Threatist record created from CVE-2016-10257
2026-10-03 Alias added: GHSA-vfc6-mrqm-f3vr

References

Advisory 1

https://www.symantec.com/security-center/network-protection-security-advisories/SA155

TI-2017-04157 Command injection in Symantec Messaging Gateway KEVCVSS 3.1HIGH 8.8
TI-2009-01353 The Intel LANDesk Common Base Agent (CBA) in Symantec Alert Management System 2 (AMS2)… CVSS 2.0HIGH 10.0
TI-2017-04156 The Symantec Messaging Gateway can encounter an issue of remote code execution, which… CVSS 3.0CRITICAL 10.0
TI-2012-00284 The management GUI in Symantec Web Gateway 5.0.x before 5.0.3 does not properly restrict… CVSS 2.0HIGH 10.0
TI-2006-02539 Stack-based buffer overflow in Symantec Antivirus 10.1 and Client Security 3.1 allows… CVSS 2.0HIGH 10.0
TI-2012-02563 The management console in Symantec Web Gateway 5.0.x before 5.0.3.18 allows remote… CVSS 2.0HIGH 10.0

See all 597 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences