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OpenAdvisories
High · 7.5 Public exploit CVE-2020-13933 EUVD-2021-0908GHSA-2vgm-wxr3-6w2j

Authentication bypass in Apache Shiro

Published Aug 17, 2020 · Updated Aug 4, 2024 · Assigned by apache

Package: org.apache.shiro:shiro-core Package: shiro Package: shiro Ecosystem: Debian Ecosystem: Maven Ecosystem: Ubuntu

Description

Apache Shiro before 1.6.0, when using Apache Shiro, a specially crafted HTTP request may cause an authentication bypass.

Affected products

VendorProductAffectedFixed
— Apache Shiro Apache Shiro before version 1.6.0 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

Debian

Security tracker ↗
ReleasePackageFixed inAdvisory
Debian 14 shiro 1.3.2-5 —
Debian 13 shiro 1.3.2-5 —
Debian 12 shiro 1.3.2-5 —
Debian 9 shiro 1.3.2-1+deb9u2 DLA-2726-1

Ubuntu

Security tracker ↗
ReleasePackageFixed inAdvisory
Ubuntu 22.04 LTS shiro 1.3.2-5 —
Ubuntu 20.04 LTS shiro 1.3.2-4ubuntu0.2 USN-6352-1
Show 2 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro 18.04 LTS shiro 1.3.2-3ubuntu0.18.04.1~esm1 USN-6352-1
Ubuntu Pro 16.04 LTS shiro No fix yet —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 3 repositories

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Affected packages

EcosystemPackageAffectedFixedRecord
Maven org.apache.shiro:shiro-core < 1.6.0 1.6.0 GHSA-2vgm-wxr3-6w2j

Advisories 2

References