Vulnerability identifier: #VU83581

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-34055

CWE-ID: CWE-20

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 insufficient validation of user-supplied input in Web Observations. A remote attacker can send specially crafted HTTP requests to the application and perform a denial of service (DoS) attack.

Successful exploitation of the vulnerability requires that application is using Spring MVC or Spring WebFlux and that org.springframework.boot:spring-boot-actuator is on the classpath.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Spring Boot: 3.0.0 - 3.0.12, 3.1.0 - 3.1.5, 2.7.0 - 2.7.17, 2.6.0 - 2.6.15, 2.5.0 - 2.5.15, 2.4.0 - 2.4.13, 2.3.0 - 2.3.12, 2.2.0 - 2.2.13, 2.1.0 - 2.1.18, 2.0.0 - 2.0.9

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External links
http://spring.io/security/cve-2023-34055

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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.