CVE-2020-35934

Advanced Access Manager <= 6.6.1 - Authenticated Information Disclosure

2020-08-20 00:00

Strategic Overview

Status: Patched in 6.6.2
Affected Plugin: Advanced Access Manager – Access Governance for WordPress
Affected Version: <= 6.6.1
CVSS: 4.3Medium
Weakness type: CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
CVE: CVE-2020-35934

View all Advanced Access Manager – Access Governance for WordPress vulnerabilities

At a glance

CVE-2020-35934 is a medium-severity Exposure of Sensitive Information to an Unauthorized Actor vulnerability in the Advanced Access Manager WordPress plugin, affecting versions <= 6.6.1. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires an authenticated account. The issue is fixed in version 6.6.2; sites on affected versions should update now. Disclosed August 2020, reported by Ram.

Vulnerability Overview

The Advanced Access Manager plugin before 6.6.2 for WordPress displays the unfiltered user object (including all metadata) upon login via the REST API (aam/v1/authenticate or aam/v2/authenticate). This is a security problem if this object stores information that the user is not supposed to have (e.g., custom metadata added by a different plugin).

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 interaction from a victim user.

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

Reaching this weakness in Advanced Access Manager <= 6.6.1 takes any authenticated account. 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 Advanced Access Manager the fix is 6.6.2: builds <= 6.6.1 are affected, anything from 6.6.2 onward is not.

Remediation

Update to version 6.6.2, or a newer patched version

How does WordSec protect against this?

The fix is the thing that ends this: Advanced Access Manager 6.6.2 closes this, and updating the plugin is the step that ends it.

Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2020-35934 https://www.wordfence.com/threat-intel/vulnerabilities/id/d1c9da9c-8a92-44fd-a35a-4c6d3777901f https://nvd.nist.gov/vuln/detail/CVE-2020-35934

Related records

Other vulnerabilities in Advanced Access Manager – Access Governance for WordPress

CVSS Vector

4.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityLow
IntegrityNone
AvailabilityNone

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