SB2025061634 - Multiple vulnerabilities in Apache Tomcat

Description

This security bulletin contains information about 4 vulnerabilities.

1) Improper Protection of Alternate Path (CVE-ID: CVE-2025-49125)

CWE-ID: CWE-424 - Improper Protection of Alternate Path

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:U/U:Green

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to improper access restrictions when using PreResources or PostResources mounted other than at the root of the web application. A remote attacker can bypass configured security rules using a alternate path and gain unauthorized access to the application. 

2) Untrusted search path (CVE-ID: CVE-2025-49124)

CWE-ID: CWE-426 - Untrusted Search Path

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

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to usage of an untrusted search path in the application's installer on Windows. A local user can place a malicious binary icacls.exe into the current working directory of the installer file end execute arbitrary code with elevated privileges.

Note, the vulnerability affects Windows systems only. 

3) Resource exhaustion (CVE-ID: CVE-2025-48988)

CWE-ID: CWE-400 - Resource exhaustion

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

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources when handling multipart requests. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

4) Resource exhaustion (CVE-ID: CVE-2025-48976)

CWE-ID: CWE-400 - Resource exhaustion

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

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to Apache Commons FileUpload provided a hard-coded limit of 10kB for the size of the headers associated with a multipart request. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Remediation

Install update from vendor's website.

References

• https://tomcat.apache.org/security-11.html#Fixed_in_Apache_Tomcat_11.0.8
• https://tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.1.42
• https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.106
• https://github.com/apache/tomcat/commit/d94bd36fb7eb32e790dae0339bc249069649a637
• https://github.com/apache/tomcat/commit/7617b9c247bc77ed0444dd69adcd8aa48777886c
• https://github.com/apache/tomcat/commit/9418e3ff9f1f4c006b4661311ae9376c52d162b9
• https://lists.apache.org/thread/gp5rzzqnp7q71bm7lsvxoow89nz1tkjw
• https://lists.apache.org/thread/n7f5v6fzovfxkpqf5q0cztqqn0kjjs4p
• https://github.com/apache/tomcat/commit/c56456cda8151c9504dfb7985700824559d769a7
• https://github.com/apache/tomcat/commit/e0e07812224d327a321babb554f5a5758d30cc49
• https://github.com/apache/tomcat/commit/28726cc2e63bed68771f5eb0f65a78dc7080571823
• https://lists.apache.org/thread/p201jp4to0nr4ky9h3j97ywk2zqv185m
• https://github.com/apache/tomcat/commit/2b0ab14fb55d4edc896e5f1817f2ab76f714ae5e
• https://github.com/apache/tomcat/commit/cdde8e655bc1c5c60a07efd216251d77c52fd7f6
• https://github.com/apache/tomcat/commit/ee8042ffce4cb9324dfd79efda5984f37bbb6910
• https://lists.apache.org/thread/pmtvgndbl12r0rrfnqnnxjcno0nggpbm
• https://github.com/apache/tomcat/commit/74f69ffaf61e54c727603e7e831fe20f0ac5d2a7
• https://github.com/apache/tomcat/commit/667ddd76e2a0e762f3a784d86f0d25e7fd7cdb86
• https://github.com/apache/tomcat/commit/97790a35a27d236fa053e660676c3f8196284d93
• https://lists.apache.org/thread/3c3q2hv3vv7bz15p4vxx9dpbqbrzpyvm