CVE-2020-5626Network attack vector

Remote command execution via crafted log file

Published Jan 28, 2021 · Updated Aug 4, 2024

OS command injection in Infoscience Logstorage 8.0.0 and earlier allows remote attackers to execute arbitrary OS commands via crafted log files. The ScriptHandler log-processing function mishandles input from uploaded log filenames, allowing shell commands to be injected when FTP upload is enabled. An attacker must reach the FTP service and upload a crafted log; successful execution runs with the server process privileges and can affect confidentiality, integrity, and availability.

CVSS severity8.8
High
EPSS probability2.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Infoscience Logstorage 8.0.0 and earlier allows remote attackers to execute arbitrary OS commands via crafted log files. The ScriptHandler log-processing function mishandles input from uploaded log filenames, allowing shell commands to be injected when FTP upload is enabled. An attacker must reach the FTP service and upload a crafted log; successful execution runs with the server process privileges and can affect confidentiality, integrity, and availability.

The record

CVE
CVE-2020-5626
Published
Jan 28, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-78, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 28, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.1JPCERT/CCAV:N/AC:H/Au:S/C:C/I:C/A:C
7.5JPCERT/CCCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
9.0NVDAV:N/AC:L/Au:S/C:C/I:C/A:C
8.8NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78OS Command Injection
T1059Command and Scripting Interpreter

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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