CVE-2023-28807

Published Jan 31, 2024

Last updated 9 months ago

Overview

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.
Source: cve@zscaler.com
NVD status: Analyzed

Risk scores

CVSS 3.1

Type: Primary
Base score: 7.5
Impact score: 3.6
Exploitability score: 3.9
Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Severity: HIGH

Weaknesses

nvd@nist.gov: CWE-295
cve@zscaler.com: CWE-295

Hype score: Not currently trending

Configurations

[
  {
    "nodes": [
      {
        "negate": false,
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:zscaler:secure_internet_and_saas_access:*:*:*:*:*:*:*:*",
            "vulnerable": true,
            "matchCriteriaId": "4DC095FA-C0CB-4E6F-B749-8DB0308F9C1C",
            "versionEndExcluding": "6.2r.290"
          }
        ],
        "operator": "OR"
      }
    ]
  }
]

References