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CVE-2021-30648

CRITICALCVSS 9.8/10EPSS 1.45%

Last modified

CVE-2021-30648 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 1.45% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
1.45%

70.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
BroadcomSymantec Proxysg>= 6.5, < 6.5.10.16
BroadcomSymantec Proxysg>= 6.6, < 6.6.5.19
BroadcomSymantec Proxysg>= 6.7, < 6.7.5.12
BroadcomSymantec Proxysg>= 7.2, < 7.2.7.2
BroadcomSymantec Proxysg>= 7.3, < 7.3.3.3
BroadcomSymantec Advanced Secure Gateway S200-30 Firmware>= 6.6, < 6.7.4.17
BroadcomSymantec Advanced Secure Gateway S200-30 Firmware>= 6.7.5.0, < 6.7.5.12
BroadcomSymantec Advanced Secure Gateway S200-30 Firmware>= 7.2, < 7.2.7.2
BroadcomSymantec Advanced Secure Gateway S200-30 Firmware>= 7.3, < 7.3.3.3
BroadcomSymantec Advanced Secure Gateway S200-40 Firmware>= 6.6, < 6.7.4.17
BroadcomSymantec Advanced Secure Gateway S200-40 Firmware>= 6.7.5.0, < 6.7.5.12
BroadcomSymantec Advanced Secure Gateway S200-40 Firmware>= 7.2, < 7.2.7.2
BroadcomSymantec Advanced Secure Gateway S200-40 Firmware>= 7.3, < 7.3.3.3
BroadcomSymantec Advanced Secure Gateway S400-20 Firmware>= 6.6, < 6.7.4.17
BroadcomSymantec Advanced Secure Gateway S400-20 Firmware>= 6.7.5.0, < 6.7.5.12
BroadcomSymantec Advanced Secure Gateway S400-20 Firmware>= 7.2, < 7.2.7.2
BroadcomSymantec Advanced Secure Gateway S400-20 Firmware>= 7.3, < 7.3.3.3
BroadcomSymantec Advanced Secure Gateway S400-30 Firmware>= 6.6, < 6.7.4.17
BroadcomSymantec Advanced Secure Gateway S400-30 Firmware>= 6.7.5.0, < 6.7.5.12
BroadcomSymantec Advanced Secure Gateway S400-30 Firmware>= 7.2, < 7.2.7.2
BroadcomSymantec Advanced Secure Gateway S400-30 Firmware>= 7.3, < 7.3.3.3
BroadcomSymantec Advanced Secure Gateway S400-40 Firmware>= 6.6, < 6.7.4.17
BroadcomSymantec Advanced Secure Gateway S400-40 Firmware>= 6.7.5.0, < 6.7.5.12
BroadcomSymantec Advanced Secure Gateway S400-40 Firmware>= 7.2, < 7.2.7.2
BroadcomSymantec Advanced Secure Gateway S400-40 Firmware>= 7.3, < 7.3.3.3
BroadcomSymantec Advanced Secure Gateway 500-10 Firmware>= 6.6, < 6.7.4.17
BroadcomSymantec Advanced Secure Gateway 500-10 Firmware>= 6.7.5.0, < 6.7.5.12
BroadcomSymantec Advanced Secure Gateway 500-10 Firmware>= 7.2, < 7.2.7.2
BroadcomSymantec Advanced Secure Gateway 500-10 Firmware>= 7.3, < 7.3.3.3
BroadcomSymantec Advanced Secure Gateway S500-20 Firmware>= 6.6, < 6.7.4.17
BroadcomSymantec Advanced Secure Gateway S500-20 Firmware>= 6.7.5.0, < 6.7.5.12
BroadcomSymantec Advanced Secure Gateway S500-20 Firmware>= 7.2, < 7.2.7.2
BroadcomSymantec Advanced Secure Gateway S500-20 Firmware>= 7.3, < 7.3.3.3

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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, view/modify the appliance configuration and policy, and shutdown/restart the appliance.
How severe is CVE-2021-30648?
CVE-2021-30648 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.45% probability of exploitation in the next 30 days.
How do I fix CVE-2021-30648?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-30648?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST