PT-2022-11790 · Nacos · Nacos

Published 2022-07-05 · Updated 2023-04-03 · CVE-2021-43116

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Nacos version 2.0.3

Description An Access Control issue exists in the access prompt page. A malicious user can login by capturing packets, entering username and password, clicking on login, and then changing the returned package.

Recommendations For Nacos version 2.0.3, consider temporarily restricting access to the login functionality until a patch is available. As a workaround, monitor network traffic for suspicious packet modifications to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Improper Authentication

Using Hardcoded Credentials

Weakness Enumeration

CWE-287

CWE-798

Related Identifiers

CVE-2021-43116

GHSA-2G86-R6W2-WQQR

Affected Products

Nacos

References · 12

• 🔥 https://github.com/alibaba/nacos/issues/7127 · Exploit
• 🔥 https://github.com/alibaba/nacos/issues/7182 · Exploit
• 🔥 https://exploit-db.com/exploits/51205 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-43116 · Security Note
• https://osv.dev/vulnerability/CVE-2021-43116 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-2g86-r6w2-wqqr · Vendor Advisory
• https://github.com/alibaba/nacos · Note
• https://t.me/cvenotify/32602 · Telegram Post
• https://t.me/cvenotify/47452 · Telegram Post
• https://t.me/cvenotify/32982 · Telegram Post
• http://packetstormsecurity.com/files/171638/Nacos-2.0.3-Access-Control.html · Note
• https://t.me/cibsecurity/45598 · Telegram Post