Auth bypass in Apache Shiro
CVE-2021-41303
Apache Shiro before 1.8.0, when using Apache Shiro with Spring Boot, a specially crafted HTTP request may cause an authentication bypass. Users should update to Apache Shiro 1.8.0.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.761 (99.5th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.767 · newest: 0.761 · change: -0.005
Affected products
- Apache Shiro
- Apache Software Foundation Shiro — versions Apache Shiro
- Oracle Financial Services Crime And Compliance Management Studio — versions 8.0.8.2.0, 8.0.8.3.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.apache.org/thread.html/re470be1ffea44bca28ccb0e67a4cf5d744e2d2b981d00fdbb… (Mailing List, Vendor Advisory)
- lists.apache.org/thread.html/raae98bb934e4bde304465896ea02d9798e257e486d04a4222… (mailing-list)
- www.oracle.com/security-alerts/cpujul2022.html (Patch, Third Party Advisory)
- security.netapp.com/advisory/ntap-20220609-0001/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-41303?
- CVE-2021-41303 is a critical-severity vulnerability in Apache Shiro, classified under Improper Authentication. CVSS score: 9.8/10. Published 2021-09-17.
- How severe is CVE-2021-41303?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2021-41303 known to be exploited?
- 8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.