#VU28463 Use of insufficiently random values in Spring Security - CVE-2020-5408
Vulnerability identifier: #VU28463
Vulnerability risk: Medium
CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID:
CWE-ID:
CWE-330
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Spring Security
Server applications /
Frameworks for developing and running applications
Vendor: VMware, Inc
Description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to the affected software uses a fixed null initialization vector with CBC Mode in the implementation of the queryable text encryptor. A remote authenticated attacker can derive the unencrypted values using a dictionary attack.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Spring Security: 4.2.0 - 4.2.15, 5.0.0 - 5.0.15, 5.1.0 - 5.1.9, 5.2.0 - 5.2.3, 5.3.0 - 5.3.1
External links
https://tanzu.vmware.com/security/cve-2020-5408
https://github.com/spring-projects/spring-security/issues/8317
https://github.com/spring-projects/spring-security/commit/d1909ec9c8844cfa6b63bab5c2591f14d714ef6b
https://snyk.io/vuln/SNYK-JAVA-ORGSPRINGFRAMEWORKSECURITY-570204
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
