Digital signature forgery in Spring Boot Loader

1) Improper Verification of Cryptographic Signature

EUVDB-ID: #VU96484

Risk: Low

CVSSv4.0: 4.1 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-38807

CWE-ID: CWE-347 - Improper Verification of Cryptographic Signature

Exploit availability: No

Description

The vulnerability allows a local user to bypass implemented security restrictions.

The vulnerability exists due to incorrect signature verification when using spring-boot-loader and spring-boot-loader-classic for nested jar files. A local user can forge the signature to spoof identity of the code signer.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Spring Boot: 2.7.0 - 3.3.2

CPE2.3

• cpe:2.3:a:spring:spring-boot:2.7.21:*:*:*:*:*:*:*
• cpe:2.3:a:spring:spring-boot:3.0.16:*:*:*:*:*:*:*
• cpe:2.3:a:spring:spring-boot:3.1.12:*:*:*:*:*:*:*
• cpe:2.3:a:spring:spring-boot:3.2.8:*:*:*:*:*:*:*
• cpe:2.3:a:spring:spring-boot:3.3.2:*:*:*:*:*:*:*

External links

https://spring.io/security/cve-2024-38807

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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