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MEDIUM · 5.1

CVE-2023-28807

In Zscaler Internet Access (ZIA) a mismatch between Connect Host and Client Hello's Server Name Indication (SNI) enables attackers to evade network security controls by hiding their communications wit...

Vulnerability Description

In Zscaler Internet Access (ZIA) a mismatch between Connect Host and Client Hello's Server Name Indication (SNI) enables attackers to evade network security controls by hiding their communications within legitimate traffic.

CVSS Score

5.1

MEDIUM

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

Affected Products

VendorProductVersions
ZscalerSecure Internet And Saas Access< 6.2r.290

Related Weaknesses (CWE)

CWE-295

References

FAQ

What is CVE-2023-28807?

CVE-2023-28807 is a vulnerability with a CVSS score of 5.1 (MEDIUM). In Zscaler Internet Access (ZIA) a mismatch between Connect Host and Client Hello's Server Name Indication (SNI) enables attackers to evade network security controls by hiding their communications wit...

How severe is CVE-2023-28807?

CVE-2023-28807 has been rated MEDIUM with a CVSS base score of 5.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2023-28807?

Check the references section above for vendor advisories and patch information. Affected products include: Zscaler Secure Internet And Saas Access.