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CRITICAL · 9.8

CVE-2021-30648

The Symantec Advanced Secure Gateway (ASG) and ProxySG web management consoles are susceptible to an authentication bypass vulnerability. An unauthenticated attacker can execute arbitrary CLI commands...

Vulnerability Description

The Symantec Advanced Secure Gateway (ASG) and ProxySG web management consoles are susceptible to an authentication bypass vulnerability. An unauthenticated attacker can execute arbitrary CLI commands, view/modify the appliance configuration and policy, and shutdown/restart the appliance.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
BroadcomSymantec Proxysg>= 6.5, < 6.5.10.16
BroadcomSymantec Advanced Secure Gateway S200-30 Firmware>= 6.6, < 6.7.4.17
BroadcomSymantec Advanced Secure Gateway S200-30-
BroadcomSymantec Advanced Secure Gateway S200-40 Firmware>= 6.6, < 6.7.4.17
BroadcomSymantec Advanced Secure Gateway S200-40-
BroadcomSymantec Advanced Secure Gateway S400-20 Firmware>= 6.6, < 6.7.4.17
BroadcomSymantec Advanced Secure Gateway S400-20-
BroadcomSymantec Advanced Secure Gateway S400-30 Firmware>= 6.6, < 6.7.4.17
BroadcomSymantec Advanced Secure Gateway S400-30-
BroadcomSymantec Advanced Secure Gateway S400-40 Firmware>= 6.6, < 6.7.4.17
BroadcomSymantec Advanced Secure Gateway S400-40-
BroadcomSymantec Advanced Secure Gateway 500-10 Firmware>= 6.6, < 6.7.4.17
BroadcomSymantec Advanced Secure Gateway 500-10-
BroadcomSymantec Advanced Secure Gateway S500-20 Firmware>= 6.6, < 6.7.4.17
BroadcomSymantec Advanced Secure Gateway S500-20-

Related Weaknesses (CWE)

CWE-287

References

FAQ

What is CVE-2021-30648?

CVE-2021-30648 is a vulnerability with a CVSS score of 9.8 (CRITICAL). The Symantec Advanced Secure Gateway (ASG) and ProxySG web management consoles are susceptible to an authentication bypass vulnerability. An unauthenticated attacker can execute arbitrary CLI commands...

How severe is CVE-2021-30648?

CVE-2021-30648 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-30648?

Check the references section above for vendor advisories and patch information. Affected products include: Broadcom Symantec Proxysg, Broadcom Symantec Advanced Secure Gateway S200-30 Firmware, Broadcom Symantec Advanced Secure Gateway S200-30, Broadcom Symantec Advanced Secure Gateway S200-40 Firmware, Broadcom Symantec Advanced Secure Gateway S200-40.