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ZscalerCVELIST:CVE-2023-28800

HistoryJun 22, 2023 - 7:15 p.m.

CVE-2023-28800 Output encoding missing in redrurl parameter

2023-06-2219:15:55

CWE-20

Zscaler

www.cve.org

cve-2023-28800

output encoding

redrurl parameter

local accounts

administration

xss attack

admin login

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

7.9 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

39.6%

JSON

When using local accounts for administration, the redirect url parameter was not encoded correctly, allowing for an XSS attack providing admin login.

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "Client Connector",
    "vendor": "Zscaler",
    "versions": [
      {
        "lessThan": "3.9 Mac, 3.7 Win, 1.9.3 iOS, 1.10.2 Android, 1.10.1 Chrome OS, 1.4 Linux",
        "status": "affected",
        "version": "0",
        "versionType": "custom"
      }
    ]
  }
]

References

help.zscaler.com/client-connector/client-connector-app-release-summary-2022?applicable_category=Linux&applicable_version=1.4&deployment_date=2022-10-31&id=1420246

help.zscaler.com/client-connector/client-connector-app-release-summary-2023?applicable_category=Android&applicable_version=1.10.2&deployment_date=2023-03-09&id=1447706

help.zscaler.com/client-connector/client-connector-app-release-summary-2023?applicable_category=Chrome%20OS&applicable_version=1.10.1&deployment_date=2023-03-10&id=1447771

help.zscaler.com/client-connector/client-connector-app-release-summary-2023?applicable_category=iOS&applicable_version=1.9.3&deployment_date=2023-03-03&id=1447071

help.zscaler.com/client-connector/client-connector-app-release-summary-2023?applicable_category=macOS&applicable_version=3.9&deployment_date=2023-01-25&id=1443546

help.zscaler.com/zscaler-client-connector/client-connector-app-release-summary-2021?applicable_category=Windows&applicable_version=3.7&deployment_date=2021-11-26&id=1386541

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

7.9 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

39.6%

JSON

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