Log tampering in Spring Framework

Published: 2021-10-28 | Updated: 2022-03-29

Risk	Medium
Patch available	YES
Number of vulnerabilities	1
CVE-ID	CVE-2021-22096
CWE-ID	CWE-20
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Pivotal Spring Framework Server applications / Frameworks for developing and running applications
Vendor	Pivotal

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Input validation error

EUVDB-ID: #VU61720

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-22096

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to modify existing log records.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can pass specially crafted input to the application and inject arbitrary records into log files.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Pivotal Spring Framework: 5.2.0 RC1 - 5.3.11

CPE2.3

External links

https://tanzu.vmware.com/security/cve-2021-22096
https://security.netapp.com/advisory/ntap-20211125-0005/

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.