#VU76427 Resource management error in Spring Boot - CVE-2023-20883

Vulnerability identifier: #VU76427

Vulnerability risk: Medium

CVSSv4.0: 6.6 [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:U/U:Green]

CVE-ID: CVE-2023-20883

CWE-ID: CWE-399

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Spring Boot
Universal components / Libraries / Software for developers

Vendor: Spring

Description

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

The vulnerability exists due to improper management of internal resources within the application. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.

Specifically, an application is vulnerable if all of the conditions are true:

• The application has Spring MVC auto-configuration enabled. This is the case by default if Spring MVC is on the classpath.
• The application makes use of Spring Boot's welcome page support, either static or templated.
• Your application is deployed behind a proxy which caches 404 responses.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Spring Boot: 2.5.0 - 2.5.14, 2.6.0 - 2.6.14, 2.7.0 - 2.7.11, 3.0.0 - 3.0.6

---

External links
https://spring.io/security/cve-2023-20883

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.