What is CVE-2021-22053?

CVE-2021-22053 is a high-severity vulnerability in VMware Spring Cloud Netflix, classified under Code Injection. CVSS score: 8.8/10. Published 2021-11-19.

How severe is CVE-2021-22053?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2021-22053 known to be exploited?

24 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

RCE in VMware Spring Cloud Netflix

CVE-2021-22053

Applications using both `spring-cloud-netflix-hystrix-dashboard` and `spring-boot-starter-thymeleaf` expose a way to execute code submitted within the request URI path during the resolution of view templates. When a request is made at `/hystrix/monitor;[user-provided data]`, the path elements following `hystrix/monitor` are being evaluated as SpringEL expressions, which can lead to code execution.

Vulnerability class: RCE (Remote Code Execution)

EPSS: 0.130 (95.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Vmware Spring_cloud_netflix
N/a Spring Cloud Netflix — versions Spring Cloud Netflix versions 2.2.x prior to 2.2.10.Release + and old unsupported versions

Weakness classification (CWE)

CWE-94 — Code Injection

Public proof-of-concept exploits

References

security@vmware.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-22053?: CVE-2021-22053 is a high-severity vulnerability in VMware Spring Cloud Netflix, classified under Code Injection. CVSS score: 8.8/10. Published 2021-11-19.
How severe is CVE-2021-22053?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2021-22053 known to be exploited?: 24 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.