Patchfirst
CVE-2021-37580 Public exploit EPSS 42.1%

Apache ShenYu Admin bypass JWT authentication

Apache Software Foundation · Apache ShenYu Admin

Official description · CVE.org

A flaw was found in Apache ShenYu Admin. The incorrect use of JWT in ShenyuAdminBootstrap allows an attacker to bypass authentication. This issue affected Apache ShenYu 2.3.0 and 2.4.0

Breakdown
60.4 / 100
Exploited
Yes, in VulnCheck KEV
Reports
0
Tactics
0/15

First seen exploited 2 years after disclosure. Public exploit code (PoC-in-GitHub) appeared 1 day after disclosure.

  1. Disclosedday 0
  2. Public exploit codePoC-in-GitHub+1 day
  3. First seen exploitedVulnCheck KEV evidence+2 yrs

3 fixes in shenyu-admin over 23 months. The latest fix listed for shenyu-admin is 2.6.0.

Fixes in shenyu-adminMaven package, by fixed version. Earlier and later fixes in the same package, not necessarily the same bug.

  1. 2.4.1CVE-2021-3758016 Nov 2021
  2. 2.5.1CVE-2022-4273515 Feb 2023
  3. 2.6.0CVE-2023-2575319 Oct 2023Latest listed

techniques

No techniques linked

No ATT&CK techniques are linked to this CVE yet. MITRE CTID has not mapped it, and no report passage in the corpus ties it to a technique.

Am I affected? What do I upgrade to?

From GitHub Security Advisories and OSV

1 package in 1 ecosystem. Main package: org.apache.shenyu:shenyu-admin.

Mavenorg.apache.shenyu:shenyu-adminGHSA-vpfp-5gwq-g533

Upgrade to 2.4.1 or later

Set the version to 2.4.1 or later in your pom.xml or build.gradle.

The first fix for CVE-2021-37580. No other CVE tracked by Patchfirst affects this package.

Affected versions

If you runUpgrade to
2.3.0 up to 2.4.12.4.1

“Up to” means the second version is the fix and is not affected.

Check your lockfile against all CVEs

What security researchers reported

Not named in any threat report yet

Also mentioned in 1 community threat pulse (AlienVault OTX)

Weaker evidence

Pulses are indicator collections that anyone can publish. A mention is not confirmation of exploitation.

References

2 links, grouped by NVD tag
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