CVE-2020-17523
Authentication bypass in Apache Shiro
9.8
CRITICAL
CVSS 3.1
EPSS 88.8%
Description
Apache Shiro before 1.7.1, when using Apache Shiro with Spring, a specially crafted HTTP request may cause an authentication bypass.
How to fix CVE-2020-17523
To remediate CVE-2020-17523, upgrade the affected package to a fixed version below.
- Maven/org.apache.shiro:shiro-spring—upgrade to 1.7.1 or later
- Maven/org.apache.shiro:shiro-spring-boot-starter—upgrade to 1.7.1 or later
- —upgrade to 1.7.1 or later
Is CVE-2020-17523 being exploited?
Likely — EPSS is 88.8%, placing CVE-2020-17523 in the top tier of vulnerabilities by exploitation probability. Prioritise patching.
Affected packages (3)
- from 0, < 1.7.1
- from 0, < 1.7.1
- from 0, < 1.7.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |