Authentication bypass in Apache Shiro
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-17523 |
| CWE-ID | CWE-287 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software Subscribe |
Apache Shiro Universal components / Libraries / Software for developers |
| Vendor | Apache Foundation |
Security Bulletin
This security bulletin contains one high risk vulnerability.
1) Improper Authentication
EUVDB-ID: #VU50177
Risk: High
CVSSv3.1: 8.2 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:P/RL:O/RC:C]
CVE-ID: CVE-2020-17523
CWE-ID:
CWE-287 - Improper Authentication
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to an error in when processing authentication requests in Apache Shiro with Spring. A remote attacker can send a specially crafted HTTP request to bypass authentication process and gain unauthorized access to the application.
MitigationInstall updates from vendor's website.
Vulnerable software versionsApache Shiro: 1.0.0 - 1.7.0
External linkshttp://seclists.org/oss-sec/2021/q1/94
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
