PT-2018-15366 · Comsenz · Discuzx

Published 2018-12-24 · Updated 2019-10-03 · CVE-2018-20422

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

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

Name of the Vulnerable Software and Affected Versions DiscuzX version 3.4

Description The issue allows remote attackers to bypass authentication when WeChat login is enabled. This is achieved by leveraging a non-empty #wechat#common member wechatmp to gain login access to an account via a "plugin.php?ac=wxregister" request. The attacker does not have control over which account will be accessed.

Recommendations For DiscuzX version 3.4, as a temporary workaround, consider disabling WeChat login until a patch is available. Restrict access to the plugin.php endpoint, specifically the "ac=wxregister" request, to minimize the risk of exploitation. Avoid using the WeChat login feature in the affected version until the issue is resolved.

Exploit

Fix

Improper Authentication

Weakness Enumeration

CWE-287

Related Identifiers

CVE-2018-20422

Affected Products

Discuzx

References · 3

• 🔥 https://gitee.com/ComsenzDiscuz/DiscuzX/issues/IPRUI · Exploit
• https://osv.dev/vulnerability/CVE-2018-20422 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-20422 · Security Note