Strix
26.1K

CVE-2021-22128

MEDIUMCVSS 4.3/10EPSS 1.00%

Last modified

CVE-2021-22128 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. An improper access control vulnerability in FortiProxy SSL VPN portal 2.0.0, 1.2.9 and below versions may allow an authenticated, remote attacker to access internal service such as the ZebOS Shell on the FortiProxy appliance through the Quick Connection functionality.. EPSS estimates a 1.00% chance of exploitation in the next 30 days.

Description

An improper access control vulnerability in FortiProxy SSL VPN portal 2.0.0, 1.2.9 and below versions may allow an authenticated, remote attacker to access internal service such as the ZebOS Shell on the FortiProxy appliance through the Quick Connection functionality.

Metrics

CVSS 3.1
4.3/10

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

EPSS Probability
1.00%

58.4th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
FortinetFortiproxy<= 1.2.9
FortinetFortiproxy2.0.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-22128?
An improper access control vulnerability in FortiProxy SSL VPN portal 2.0.0, 1.2.9 and below versions may allow an authenticated, remote attacker to access internal service such as the ZebOS Shell on the FortiProxy appliance through the Quick Connection functionality.
How severe is CVE-2021-22128?
CVE-2021-22128 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 1.00% probability of exploitation in the next 30 days.
How do I fix CVE-2021-22128?
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-2021-22128?

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

Scan your code now

Source: NVD / NIST