CVE-2023-4400Network attack vector

Credential disclosure via plaintext configuration storage

Published Sep 13, 2023 · Updated Sep 25, 2024

Cleartext password storage in Skyhigh Secure Web Gateway allows remote authenticated users to extract credentials through its REST API. Affected 10.x, 11.x, and 12.x releases write some passwords without encryption into configuration files that the API can return. High-privilege API access and user interaction are required, and the reported consequence is disclosure of stored authentication information.

CVSS severity6.5
Medium
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cleartext password storage in Skyhigh Secure Web Gateway allows remote authenticated users to extract credentials through its REST API. Affected 10.x, 11.x, and 12.x releases write some passwords without encryption into configuration files that the API can return. High-privilege API access and user interaction are required, and the reported consequence is disclosure of stored authentication information.

The record

CVE
CVE-2023-4400
Published
Sep 13, 2023
Updated
Sep 25, 2024
Vendor
Skyhigh Security
Product
Skyhigh Secure Web Gateway
Classifications
CWE-256, CWE-312, CAPEC-37, T1552.001
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Sep 13, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 25, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.x <10.2.25
  2. Affected versionversion=11.x <11.2.14
  3. Affected versionversion=12.x <12.2.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Skyhigh Security · Skyhigh Secure Web Gatewayversion=10.x <10.2.25; version=11.x <11.2.14; version=12.x <12.2.1

Published CVSS scores

6.2Trellix PSIRTCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:N/A:N
6.5National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-256Plaintext Storage of a Password
CWE-312Cleartext Storage of Sensitive Information
CAPEC-37Retrieve Embedded Sensitive Data
T1552.001Credentials In Files

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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