CVE-2021-45325: Github.com/go gitea/gitea Gitea Displaying Raw OpenID Error Vulnerability

MODERATE
Advisory Identifier: GHSA-8h8p-x289-vvqr
Share
CVSS 5.3
CWE-918
Published
Advisory Summary

CVE-2021-45325 is a MODERATE (CVSS 5.3) gitea displaying raw openid error vulnerability (CWE-918: Server-Side Request Forgery (SSRF)) affecting Github.com/go gitea/gitea libraries in the Go ecosystem. The issue involves gitea displaying raw openid error in ui. Remediation is available by upgrading affected packages to version 1.7.0.

CVE-2021-45325 at a Glance

CVE Identifier CVE-2021-45325
GHSA Identifier GHSA-8h8p-x289-vvqr
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-918: Server-Side Request Forgery (SSRF)
Affected Product Github.com/go gitea/gitea
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 5.3

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

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

How to Fix CVE-2021-45325

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

github.com/go-gitea/gitea fixed: 1.7.0 
Upgrade github.com/go-gitea/gitea to 1.7.0
Verify Direct and Transitive Dependencies

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

inspect dependencies for github.com/go-gitea/gitea

How to Check if You Are Affected

To determine whether your application is affected by CVE-2021-45325, inspect your project dependencies for Github.com/go gitea/gitea:

inspect dependencies for github.com/go-gitea/gitea

Analyze the terminal output to locate any version of Github.com/go gitea/gitea in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.7.0), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-918: Server-Side Request Forgery (SSRF), where the web server receives a url or similar request from an upstream component and retrieves the contents of this url, but it does not sufficiently ensure that the request is being sent to the expected destination. In Github.com/go gitea/gitea, 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

Gitea is a project to help users set up a self-hosted Git service. Server Side Request Forgery (SSRF) vulnerability exists in Gitea before 1.7.0 using the OpenID URL. Gitea can leak sensitive information about the local network through the error provided by the UI.

CVE-2021-45325 Affected Github.com/go gitea/gitea Versions

1 component(s)
Fixed Versions:
1.7.0
Product / Package Ecosystem Affected Versions Fixed Version
github.com/go-gitea/gitea
golang/github.com/go-gitea/gitea
Go
< 1.7.0
1.7.0

References

NVD — CVE-2021-45325 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-45325
Github.com/go gitea/gitea Source Repository REPOSITORY
https://github.com/go-gitea/gitea/issues/4973
Github.com/go gitea/gitea Source Repository REPOSITORY
https://github.com/go-gitea/gitea/pull/5705
Github.com/go gitea/gitea Source Repository REPOSITORY
https://github.com/go-gitea/gitea/pull/5712
blog.gitea.io/2019/01/gitea-1.7.0... WEB
https://blog.gitea.io/2019/01/gitea-1.7.0-is-released
Github.com/go gitea/gitea Source Repository REPOSITORY
https://github.com/go-gitea/gitea

Frequently Asked Questions

What is CVE-2021-45325?
CVE-2021-45325 is a security vulnerability in Github.com/go gitea/gitea involving Gitea displaying raw OpenID error in UI under CWE-918: Server-Side Request Forgery (SSRF).
Which Github.com/go gitea/gitea versions are affected?
Affected versions include releases prior to 1.7.0 across affected packages: github.com/go-gitea/gitea.
What version fixes CVE-2021-45325?
Upgrading to 1.7.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/go-gitea/gitea affected?
Yes, github.com/go-gitea/gitea is affected in releases prior to 1.7.0. Upgrade your dependency to 1.7.0 or later.
What is the CVSS score of CVE-2021-45325?
CVE-2021-45325 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2021-45325?
CVE-2021-45325 is classified under CWE-918: Server-Side Request Forgery (SSRF) (The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.).
How can I check Go dependencies for CVE-2021-45325?
Run the dependency tree command: 'inspect dependencies for github.com/go-gitea/gitea'. 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-8h8p-x289-vvqr",
  "modified" : "2022-02-14T21:42:51Z",
  "published" : "2022-02-09T00:00:29Z",
  "aliases" : [ "CVE-2021-45325" ],
  "summary" : "Gitea displaying raw OpenID error in UI",
  "details" : "Gitea is a project to help users set up a self-hosted Git service. Server Side Request Forgery (SSRF) vulnerability exists in Gitea before 1.7.0 using the OpenID URL. Gitea can leak sensitive information about the local network through the error provided by the UI. ",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/go-gitea/gitea"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.7.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-45325"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/go-gitea/gitea/issues/4973"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/go-gitea/gitea/pull/5705"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/go-gitea/gitea/pull/5712"
  }, {
    "type" : "WEB",
    "url" : "https://blog.gitea.io/2019/01/gitea-1.7.0-is-released"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/go-gitea/gitea"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-918" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-02-14T19:58:31Z",
    "nvd_published_at" : "2022-02-08T15:15:00Z"
  }
}