CVE-2017-2217

WordPress Download Manager < 2.9.51 - Open Redirect

2017-07-13 00:00

Strategic Overview

Status: Patched in 2.9.51
Affected Plugin: Download Manager
Affected Version: < 2.9.51
CVSS: 6.1Medium
Weakness type: CWE-601 · URL Redirection to Untrusted Site ('Open Redirect')
CVE: CVE-2017-2217

View all Download Manager vulnerabilities

At a glance

CVE-2017-2217 is a medium-severity URL Redirection to Untrusted Site ('Open Redirect') vulnerability in the Download Manager WordPress plugin, affecting versions < 2.9.51. It carries a CVSS score of 6.1 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 2.9.51; sites on affected versions should update now. Disclosed July 2017, reported by Gen Sato.

Vulnerability Overview

Open redirect vulnerability in WordPress Download Manager prior to version 2.9.51 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via unspecified vectors.

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.

CWE-601: URL Redirection to Untrusted Site ('Open Redirect')

Reaching this weakness in Download Manager < 2.9.51 takes a caller who can reach the endpoint. An open redirect is a page that takes a destination from the request and sends the browser there without checking that the destination belongs to the site.

A link that starts on a trusted domain finishes on an attacker's, which is what makes phishing and consent-screen abuse credible to the person clicking it. For Download Manager the fix is 2.9.51: builds < 2.9.51 are affected, anything from 2.9.51 onward is not.

Remediation

Update to version 2.9.51, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Download Manager: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Download Manager 2.9.51 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2017-2217 https://www.wordfence.com/threat-intel/vulnerabilities/id/97690bde-f2c6-429b-8d5a-51bee4a981ca https://nvd.nist.gov/vuln/detail/CVE-2017-2217

Related records

Other vulnerabilities in Download Manager

CVSS Vector

6.1

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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