CVE-2018-17207

Duplicator <= 1.2.41 - Sensitive Information Disclosure leading to Remote Code Execution

2018-08-29 00:00

Strategic Overview

Status: Patched in 1.2.42
Affected Plugin: Duplicator – Backups & Migration Plugin – Cloud Backups, Scheduled Backups, & More
Affected Version: <= 1.2.40
CVSS: 9.8Critical
Weakness type: CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
CVE: CVE-2018-17207

View all Duplicator – Backups & Migration Plugin – Cloud Backups, Scheduled Backups, & More vulnerabilities

At a glance

CVE-2018-17207 is a critical-severity Exposure of Sensitive Information to an Unauthorized Actor vulnerability in the Duplicator WordPress plugin, affecting versions <= 1.2.40. It carries a CVSS score of 9.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 1.2.42; sites on affected versions should update now. Disclosed August 2018, reported by Thomas Chauchefoin.

Vulnerability Overview

An issue was discovered in Duplicator before 1.2.42. By accessing leftover installer files (installer.php and installer-backup.php), an attacker can inject PHP code into wp-config.php during the database setup step, achieving arbitrary code execution.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

Reaching this weakness in Duplicator <= 1.2.40 takes a caller who can reach the endpoint. Sensitive information exposure means data the application intended to keep internal is returned to a caller who should not be able to see it.

The disclosed data — credentials, tokens, customer records or internal paths — is usually worth more as material for a follow-up attack than as an end in itself. For Duplicator the fix is 1.2.42: builds <= 1.2.40 are affected, anything from 1.2.42 onward is not.

Remediation

Update to version 1.2.42, or a newer patched version

How does WordSec protect against this?

The fix is the thing that ends this: Duplicator 1.2.42 closes this, and updating the plugin is the step that ends it.

Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2018-17207 https://www.wordfence.com/threat-intel/vulnerabilities/id/aff754d6-8624-4068-8e31-738f6041d3a6 https://nvd.nist.gov/vuln/detail/CVE-2018-17207

Related records

Same weakness class

Other vulnerabilities in Duplicator – Backups & Migration Plugin – Cloud Backups, Scheduled Backups, & More

CVSS Vector

9.8

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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