Information disclosure in Apache Tomcat - CVE-2021-24122

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Main Vulnerability Database Vulnerabilities #VU49570

Information disclosure in Apache Tomcat - CVE-2021-24122

Published: January 14, 2021 / Updated: January 18, 2021


Vulnerability identifier: #VU49570
CSH Severity: Medium
CVSSv4.0: 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
CVE-ID: CVE-2021-24122
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Apache Tomcat
Software vendor:
Apache Foundation

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to JSP source code disclosure in some configurations, when serving resources from a network location using the NTFS file system. The root cause was the unexpected behaviour of the JRE API File.getCanonicalPath() which in turn was caused by the inconsistent behaviour of the Windows API (FindFirstFileW) in some circumstances.A remote attacker can send a specially crafted request to the application and view the JSP source code.


Remediation

Install updates from vendor's website.

External links