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Application Security Gateway CVE-2024-2648

MEDIUM
Improper Neutralization of Data within XPath Expressions ('XPath Injection') (CWE-643)
2024-03-19 cna@vuldb.com
5.3
CVSS 3.1 · NVD
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Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization XPath expression sanitization
Impact

CVSS score of 5.3 (MEDIUM). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available.

Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the medium-severity affected system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.7% exploitation probability (EPSS)

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AnalysisAI

A vulnerability, which was classified as problematic, was found in Netentsec NS-ASG Application Security Gateway 6.3. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

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Technical ContextAI · show details

This vulnerability is classified under CWE-643. A vulnerability, which was classified as problematic, was found in Netentsec NS-ASG Application Security Gateway 6.3. Affected is an unknown function of the file /nac/naccheck.php. The manipulation of the argument username leads to improper neutralization of data within xpath expressions. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. VDB-257286 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way. Affected products include: Netentsec Application Security Gateway.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 5.3 MEDIUM
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

DescriptionNVD

A vulnerability, which was classified as problematic, was found in Netentsec NS-ASG Application Security Gateway 6.3. Affected is an unknown function of the file /nac/naccheck.php. The manipulation of the argument username leads to improper neutralization of data within xpath expressions. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. VDB-257286 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Threat Intelligence Overview

EPSS Score
0.7%
Top 50% exploitable
Exploit
POC
Public exploit code exists
Data Quality
4 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC Yes
EPSS 0.7%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
Medium

Priority Score

47
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +26
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)NVD

cpe:2.3:a:netentsec:application_security_gateway:6.3:*:*:*:*:*:*:*
CVE-2024-3458 CRITICAL POC
9.8 Apr 08

A vulnerability classified as critical was found in Netentsec NS-ASG Application Security Gateway 6.3. Rated critical se

CVE-2024-3457 CRITICAL POC
9.8 Apr 08

A vulnerability classified as critical has been found in Netentsec NS-ASG Application Security Gateway 6.3. Rated critic

CVE-2024-3456 CRITICAL POC
9.8 Apr 08

A vulnerability was found in Netentsec NS-ASG Application Security Gateway 6.3. Rated critical severity (CVSS 9.8), this

CVE-2024-3455 CRITICAL POC
9.8 Apr 08

A vulnerability was found in Netentsec NS-ASG Application Security Gateway 6.3. Rated critical severity (CVSS 9.8), this

CVE-2024-3041 CRITICAL POC
9.8 Mar 28

A vulnerability has been found in Netentsec NS-ASG Application Security Gateway 6.3 and classified as critical. Rated cr

CVE-2024-3040 CRITICAL POC
9.8 Mar 28

A vulnerability, which was classified as critical, was found in Netentsec NS-ASG Application Security Gateway 6.3. Rated

CVE-2024-2649 CRITICAL POC
9.8 Mar 20

A vulnerability has been found in Netentsec NS-ASG Application Security Gateway 6.3 and classified as critical. Rated cr

CVE-2024-2647 CRITICAL POC
9.8 Mar 19

A vulnerability, which was classified as critical, has been found in Netentsec NS-ASG Application Security Gateway 6.3.p

CVE-2024-2646 CRITICAL POC
9.8 Mar 19

A vulnerability classified as critical was found in Netentsec NS-ASG Application Security Gateway 6.3. Rated critical se

CVE-2024-2644 CRITICAL POC
9.8 Mar 19

A vulnerability was found in Netentsec NS-ASG Application Security Gateway 6.3. Rated critical severity (CVSS 9.8), this

CVE-2024-2330 CRITICAL POC
9.8 Mar 09

A vulnerability was found in Netentsec NS-ASG Application Security Gateway 6.3. Rated critical severity (CVSS 9.8), this

CVE-2024-2329 CRITICAL POC
9.8 Mar 09

A vulnerability was found in Netentsec NS-ASG Application Security Gateway 6.3 and classified as critical. Rated critica

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