GHSA-7m5c-fgwf-mwph — medium GitHub Advisory (CVE-2023-34036) in maven/org.springframework.hateoas:…

Description

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.

Basic information

Type: reviewed
Severity: medium
Advisory on GitHub: Open advisory ↗
Repository advisory: —
Source code: Browse source ↗
Published (advisory): 2023-07-17 12:30:32 UTC
Updated: 2023-11-06 05:05:38 UTC
GitHub reviewed: 2023-07-17 14:10:24 UTC
NVD published: 2023-07-17

Score	Percentile
0.38%	59.66%

CVSS Scores

Base score	Version	Severity	Vector
5.3	3.1	—	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:N) Doesn’t really leak secrets in a meaningful way. Integrity (I:L) Attackers could change some data, but it’s limited—not everything goes. Availability (A:N) Service keeps running; no real outage angle.

Identifiers

Type	Value
GHSA	GHSA-7m5c-fgwf-mwph ↗
CVE	CVE-2023-34036 ↗

CWEs

CWE id	Name
CWE-116	Improper Encoding or Escaping of Output
CWE-644	Improper Neutralization of HTTP Headers for Scripting Syntax

Affected packages (3)

Vulnerable version ranges and first patched releases as published by GitHub.

Ecosystem	Package	Vulnerable range	First patched	Vulnerable functions
maven	org.springframework.hateoas:spring-hateoas	< 1.5.5	1.5.5	—
maven	org.springframework.hateoas:spring-hateoas	>= 2.0.0, < 2.0.5	2.0.5	—
maven	org.springframework.hateoas:spring-hateoas	>= 2.1.0, < 2.1.1	2.1.1	—

Spring HATEOAS vulnerable to Improper Neutralization of HTTP Headers for Scripting Syntax