PT-2021-2104 · Apache · Apache Shiro

Published 2021-02-01 · Updated 2022-02-22 · CVE-2020-17523

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions: Apache Shiro versions prior to 1.7.1

Description: The issue is related to authentication weaknesses in the Apache Shiro framework. It may allow a remote attacker to bypass authentication, potentially leading to privilege escalation. A specially crafted HTTP request can cause an authentication bypass when Apache Shiro is used with Spring.

Recommendations: For Apache Shiro versions prior to 1.7.1, update to version 1.7.1 or later to resolve the issue. As a temporary workaround, consider restricting access to sensitive areas of the application to minimize the risk of exploitation.

Exploit

Fix

Improper Authentication

Weakness Enumeration

CWE-287

Related Identifiers

BDU:2021-00958

CVE-2020-17523

GHSA-V98J-7CRC-WVRJ

Affected Products

Apache Shiro

References · 34

• 🔥 https://github.com/jweny/shiro-cve-2020-17523 · Exploit
• https://cve.org/CVERecord?id=CVE-2020-17523 · Security Note
• https://osv.dev/vulnerability/GHSA-v98j-7crc-wvrj · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-17523 · Vendor Advisory
• https://lists.apache.org/thread.html/rce5943430a6136d37a1f2fc201d245fe094e2727a0bc27e3b2d43a39%40%3Cdev.shiro.apache.org%3E · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-00958 · Security Note
• https://osv.dev/vulnerability/CVE-2020-17523 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-17523 · Security Note
• https://ubuntu.com/security/CVE-2020-17523 · Vendor Advisory
• https://github.com/apache/shiro/pull/263 · Note
• https://lists.apache.org/thread.html/re25b8317b00a50272a7252c4552cf1a81a97984cc2111ef7728e48e0%40%3Cdev.shiro.apache.org%3E · Note
• http://seclists.org/oss-sec/2021/q1/94 · Note
• https://lists.apache.org/thread.html/r8244fd0831db894d5e89911ded9c72196d395a90ae655414d23ed0dd%40%3Cusers.activemq.apache.org%3E · Note
• http://shiro.apache.org/download.html · Note
• https://t.me/cybersecuritytechnologies/2661 · Telegram Post