CVE-2023-6903Network attack vector

Database disclosure via unfiltered loginId SQL injection

Published Dec 17, 2023 · Updated Sep 30, 2024

SQL injection in Netentsec NS-ASG Application Security Gateway 6.3.1 allows remote attackers to access database data via loginId. The /admin/singlelogin.php?submit=1 handler accepts attacker-controlled loginId without strict filtering before using it in an SQL statement. No authentication or user interaction is required, and successful requests disclose sensitive database information.

CVSS severity9.8
Critical
EPSS probability0.71%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in Netentsec NS-ASG Application Security Gateway 6.3.1 allows remote attackers to access database data via loginId. The /admin/singlelogin.php?submit=1 handler accepts attacker-controlled loginId without strict filtering before using it in an SQL statement. No authentication or user interaction is required, and successful requests disclose sensitive database information.

The record

CVE
CVE-2023-6903
Published
Dec 17, 2023
Updated
Sep 30, 2024
Vendor
Netentsec
Product
NS-ASG Application Security Gateway
Classifications
CWE-89, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 17, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 30, 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=6.3.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Netentsec · NS-ASG Application Security Gatewayversion=6.3.1

Published CVSS scores

7.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.3VulDBCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
7.5VulDBAV:N/AC:L/Au:N/C:P/I:P/A:P

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1190Exploit Public-Facing Application

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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