Vulnerability Details : CVE-2023-34036
Reactive web applications that use Spring HATEOAS to produce hypermedia-based responses might be exposed to malicious forwarded headers if they are not behind a trusted proxy that ensures correctness of such headers, or if they don't have anything else in place to handle (and possibly discard) forwarded headers either in WebFlux or at the level of the underlying HTTP server.
For the application to be affected, it needs to satisfy the following requirements:
* It needs to use the reactive web stack (Spring WebFlux) and Spring HATEOAS to create links in hypermedia-based responses.
* The application infrastructure does not guard against clients submitting (X-)Forwarded… headers.
Products affected by CVE-2023-34036
- cpe:2.3:a:vmware:spring_hateoas:*:*:*:*:*:*:*:*
- cpe:2.3:a:vmware:spring_hateoas:*:*:*:*:*:*:*:*
- cpe:2.3:a:vmware:spring_hateoas:2.1.0:-:*:*:*:*:*:*
- cpe:2.3:a:vmware:spring_hateoas:2.1.0:milestone1:*:*:*:*:*:*
- cpe:2.3:a:vmware:spring_hateoas:2.1.0:rc1:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-34036
0.31%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 53 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-34036
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
3.9
|
1.4
|
NIST | |
|
5.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
3.9
|
1.4
|
VMware |
CWE ids for CVE-2023-34036
-
The product prepares a structured message for communication with another component, but encoding or escaping of the data is either missing or done incorrectly. As a result, the intended structure of the message is not preserved.Assigned by: nvd@nist.gov (Primary)
-
The product does not neutralize or incorrectly neutralizes web scripting syntax in HTTP headers that can be used by web browser components that can process raw headers, such as Flash.Assigned by: security@vmware.com (Secondary)
References for CVE-2023-34036
-
https://spring.io/security/cve-2023-34036
CVE-2023-34036: Forwarded header exploit with Spring HATEOAS on WebFluxMitigation;Vendor Advisory
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