CVE-2019-14366

WP SlackSync <= 1.8.5 - Sensitive Information Disclosure

2019-11-12 00:00

Strategic Overview

Status: Patched in 1.8.6
Affected Plugin: wpslacksync
Affected Version: < 1.8.6
CVSS: 8.6High
Weakness type: CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
CVE: CVE-2019-14366

At a glance

CVE-2019-14366 is a high-severity Exposure of Sensitive Information to an Unauthorized Actor vulnerability in the wpslacksync WordPress plugin, affecting versions < 1.8.6. It carries a CVSS score of 8.6 (reachable over the network; low attack complexity; high confidentiality impact). Exploitation requires no authentication. The issue is fixed in version 1.8.6; sites on affected versions should update now. Disclosed November 2019, reported by fs0c131y.

Vulnerability Overview

WP SlackSync plugin through 1.8.5 for WordPress leaks a Slack Access Token in source code. An attacker can obtain a lot of information about the victim's Slack (channels, members, etc.).

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.

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

Reaching this weakness in wpslacksync < 1.8.6 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 wpslacksync the fix is 1.8.6: builds < 1.8.6 are affected, anything from 1.8.6 onward is not.

Remediation

Update to version 1.8.6, or a newer patched version

How does WordSec protect against this?

The fix is the thing that ends this: wpslacksync 1.8.6 closes this, and updating the plugin is the step that ends it.

Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2019-14366 https://www.wordfence.com/threat-intel/vulnerabilities/id/e005861c-3ca5-4cee-a84b-9ebc095f4a1f https://nvd.nist.gov/vuln/detail/CVE-2019-14366

CVSS Vector

8.6

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeChanged
ConfidentialityHigh
IntegrityNone
AvailabilityNone

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