CVE-2020-1957 Improper Authentication in Apache Shiro

What is CVE-2020-1957?

CVE-2020-1957 is a critical authentication bypass vulnerability in Debian Debian Linux, published on 25 Mar 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Apache Shiro before 1.5.2, when using Apache Shiro with Spring dynamic controllers, a specially crafted request may cause an authentication bypass.

Which versions are affected by CVE-2020-1957?

2 open source packages ship an affected version, including org.apache.shiro:shiro-core. It affects 2 products.

Products include Apache Shiro, Debian Debian Linux.

How do I fix CVE-2020-1957?

Upgrade org.apache.shiro:shiro-core to 1.5.2 or later.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2020-1957 being exploited?

There is no known exploitation of CVE-2020-1957 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2023-34478 Path Traversal in Apache Shiro Critical 9.8
• CVE-2022-40664 Authentication Bypass Vulnerability in Shiro when forwarding or including via RequestDispatcher Critical 9.8
• CVE-2022-32532 Authentication Bypass Vulnerability Critical 9.8
• CVE-2021-41303 Apache Shiro vulnerable to a specially crafted HTTP request causing an authentication bypass Critical 9.8
• CVE-2020-17523 Authentication bypass in Apache Shiro Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2020-1957, DLA-2181-1, GHSA-26gr-cvq3-qxgf, UBUNTU-CVE-2020-1957.