CVE-2021-30357Public exploit

Protected file disclosure via setuid configuration parsing

Published Jun 8, 2021 · Updated Aug 3, 2024

Information disclosure in Check Point SSL Network Extender for Linux before build 800008302 allows local users to read protected file data. The setuid-root /usr/bin/snx accepts an arbitrary path through -f and echoes unrecognized configuration text in its parser error. Any local user able to execute the installed client can expose root-readable file content until a string terminator, without modifying the source file.

CVSS severity5.3
Medium
EPSS probability22.79%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Check Point SSL Network Extender for Linux before build 800008302 allows local users to read protected file data. The setuid-root /usr/bin/snx accepts an arbitrary path through -f and echoes unrecognized configuration text in its parser error. Any local user able to execute the installed client can expose root-readable file content until a string terminator, without modifying the source file.

The record

CVE
CVE-2021-30357
Published
Jun 8, 2021
Updated
Aug 3, 2024
Vendor
Check Point Software Technologies Ltd.
Product
SSL Network Extender
Classifications
CWE-209, T1005
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 8, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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=before build 800008302

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Check Point Software Technologies Ltd. · SSL Network Extenderversion=before build 800008302

Published CVSS scores

5.0NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
5.3NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

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

Weakness, pattern, technique

CWE-209Generation of Error Message Containing Sensitive Information
T1005Data from Local System

Public exploit references

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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