CVE-2019-4000Public exploit

Root code execution via unsafe Python eval

Published Feb 25, 2020 · Updated Aug 4, 2024

Improper code injection in Druva inSync Client 6.5.0 allows local authenticated attackers to execute arbitrary Python expressions. The inSyncDecommission daemon.set_file_acl method passes an unvalidated acl argument to Python eval() over a local RPC service on TCP port 6059. Authentication to the client is required, and successful exploitation runs attacker-supplied code with root privileges, enabling system and data compromise.

CVSS severity7.8
High
EPSS probability0.73%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper code injection in Druva inSync Client 6.5.0 allows local authenticated attackers to execute arbitrary Python expressions. The inSyncDecommission daemon.set_file_acl method passes an unvalidated acl argument to Python eval() over a local RPC service on TCP port 6059. Authentication to the client is required, and successful exploitation runs attacker-supplied code with root privileges, enabling system and data compromise.

The record

CVE
CVE-2019-4000
Published
Feb 25, 2020
Updated
Aug 4, 2024
Vendor
Druva
Product
Druva inSync Client
Classifications
CWE-94, T1059.006
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 25, 2020CVE 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?

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

  1. Affected versionversion=6.5.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Druva · Druva inSync Clientversion=6.5.0

Published CVSS scores

7.8NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.2NVDAV:L/AC:L/Au:N/C:C/I:C/A:C

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.

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No observations available

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

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1059.006Command and Scripting Interpreter: Python

Public exploit references

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Technologies

Your stack

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Your stack

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