CVE-2023-43961: Sa token core Authentication Bypass Vulnerability

HIGH
Advisory Identifier: GHSA-w9vh-hv5g-7wmr
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CVSS 8.8
CWE-287 CWE-863
Published
Advisory Summary

CVE-2023-43961 is a HIGH (CVSS 8.8) authentication bypass vulnerability (CWE-287: Improper Authentication) affecting Sa token core libraries in the Maven ecosystem. The issue involves satoken authentication bypass vulnerability. Remediation is available by upgrading affected packages to version 1.36.0.

CVE-2023-43961 at a Glance

CVE Identifier CVE-2023-43961
GHSA Identifier GHSA-w9vh-hv5g-7wmr
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification CWE-287: Improper Authentication
Affected Product Sa token core
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2023-43961

To remediate this vulnerability, upgrade all affected Sa token core dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

cn.dev33:sa-token-core fixed: 1.36.0 
<dependency>
    <groupId>cn.dev33</groupId>
    <artifactId>sa-token-core</artifactId>
    <version>1.36.0</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=cn.dev33

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2023-43961, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=cn.dev33

Analyze the terminal output to locate any version of Sa token core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.36.0), your application is affected.

Note: The mvn dependency:tree -Dincludes=cn.dev33 command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-287: Improper Authentication, where when an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. In Sa token core, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

An issue in Dromara SaToken version 1.3.50RC and before when using Spring dynamic controllers, a specially crafted request may cause an authentication bypass.

CVE-2023-43961 Affected Sa token core Versions

1 component(s)
Fixed Versions:
1.36.0
Product / Package Ecosystem Affected Versions Fixed Version
cn.dev33:sa-token-core
maven/cn.dev33/sa-token-core
Maven
< 1.36.0
1.36.0

References

NVD — CVE-2023-43961 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-43961
Sa token core Source Repository REPOSITORY
https://github.com/dromara/Sa-Token/issues/511
Sa token core Source Repository REPOSITORY
https://github.com/dromara/Sa-Token

Frequently Asked Questions

What is CVE-2023-43961?
CVE-2023-43961 is a security vulnerability in Sa token core involving SaToken authentication bypass vulnerability under CWE-287: Improper Authentication.
Which Sa token core versions are affected?
Affected versions include releases prior to 1.36.0 across affected packages: cn.dev33:sa-token-core.
What version fixes CVE-2023-43961?
Upgrading to 1.36.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is sa-token-core affected?
Yes, cn.dev33:sa-token-core is affected in releases prior to 1.36.0. Upgrade your dependency to 1.36.0 or later.
What is the CVSS score of CVE-2023-43961?
CVE-2023-43961 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2023-43961?
CVE-2023-43961 is classified under CWE-287: Improper Authentication (When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.).
How can I check Maven dependencies for CVE-2023-43961?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=cn.dev33'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-w9vh-hv5g-7wmr",
  "modified" : "2024-09-11T21:32:36Z",
  "published" : "2023-10-25T18:32:23Z",
  "aliases" : [ "CVE-2023-43961" ],
  "summary" : "SaToken authentication bypass vulnerability",
  "details" : "An issue in Dromara SaToken version 1.3.50RC and before when using Spring dynamic controllers, a specially crafted request may cause an authentication bypass.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "cn.dev33:sa-token-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.36.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-43961"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/dromara/Sa-Token/issues/511"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/dromara/Sa-Token"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-287", "CWE-863" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-10-27T19:49:44Z",
    "nvd_published_at" : "2023-10-25T18:17:32Z"
  }
}