Apache Kylin Server-Side Request Forgery (SSRF) via `/kylin/api/xxx/diag` Endpoint

Description

Server-Side Request Forgery (SSRF) vulnerability in Apache Kylin. Through a kylin server, an attacker may forge a request to invoke "/kylin/api/xxx/diag" api on another internal host and possibly get leaked information. There are two preconditions: 1) The attacker has got admin access to a kylin server; 2) Another internal host has the "/kylin/api/xxx/diag" api endpoint open for service.

This issue affects Apache Kylin: from 5.0.0 through 5.0.1.

Users are recommended to upgrade to version 5.0.2, which fixes the issue.

Basic information

Type
reviewed
Severity
low
Advisory on GitHub
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Repository advisory
Source code
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Published (advisory)
2025-03-27 15:31:10 UTC
Updated
2025-03-27 18:16:41 UTC
GitHub reviewed
2025-03-27 18:16:40 UTC
NVD published
2025-03-27

EPSS Score

Score Percentile
0.14% 34.39%

CVSS Scores

Base score Version Severity Vector
2.1 4.0
CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network.
Attack complexity (AC:H)
Exploitation depends on constrained or hard-to-reproduce conditions.
Attack requirements (AT:N)
No additional preconditions are required beyond normal reachability.
Privileges required (PR:H)
High privileges are required.
User interaction (UI:N)
No user interaction is required.
Vulnerable system confidentiality impact (VC:N)
No confidentiality impact on the vulnerable system.
Vulnerable system integrity impact (VI:N)
No integrity impact on the vulnerable system.
Vulnerable system availability impact (VA:N)
No availability impact on the vulnerable system.
Subsequent system confidentiality impact (SC:L)
Limited confidentiality impact on subsequent systems.
Subsequent system integrity impact (SI:N)
No integrity impact on subsequent systems.
Subsequent system availability impact (SA:N)
No availability impact on subsequent systems.

Identifiers

CWEs

CWE id Name
CWE-918 Server-Side Request Forgery (SSRF)

Affected packages (1)

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

Ecosystem Package Vulnerable range First patched Vulnerable functions
maven org.apache.kylin:kylin-common-server >= 5.0.0, < 5.0.2 5.0.2

References

cvelogic Threat Intelligence