SB2021021824 - Ubuntu update for shiro

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Main Vulnerability Database SB2021021824

SB2021021824 - Ubuntu update for shiro

Published: February 18, 2021

Security Bulletin ID SB2021021824
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Improper Authentication (CVE-ID: CVE-2020-11989)

CWE-ID: CWE-287 - Improper Authentication

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/U:Green


The 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 dynamic controllers. A remote attacker can bypass authentication process and gain unauthorized access to the application.


2) Improper Authentication (CVE-ID: CVE-2020-1957)

CWE-ID: CWE-287 - Improper Authentication

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an authentication bypass when using Apache Shiro with Spring dynamic controllers. A remote attacker can send a specially crafted request and bypass authentication process.


Remediation

Install update from vendor's website.

References