CVE-2022-0870: Gogs.io/gogs SSRF Vulnerability

MODERATE
Advisory Identifier: GHSA-7v5r-r995-q2x2
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CVSS 5.0
CWE-918
Published
Advisory Summary

CVE-2022-0870 is a MODERATE (CVSS 5.0) ssrf vulnerability (CWE-918: Server-Side Request Forgery (SSRF)) affecting Gogs.io/gogs libraries in the Go ecosystem. The issue involves ssrf in repository migration. Remediation is available by upgrading affected packages to version 0.12.5.

CVE-2022-0870 at a Glance

CVE Identifier CVE-2022-0870
GHSA Identifier GHSA-7v5r-r995-q2x2
Severity MODERATE
CVSS v3.1 Base Score 5.0
CWE Classification CWE-918: Server-Side Request Forgery (SSRF)
Affected Product Gogs.io/gogs
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 5.0

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N).

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

How to Fix CVE-2022-0870

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

gogs.io/gogs fixed: 0.12.5 
Upgrade gogs.io/gogs to 0.12.5
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 gogs.io/gogs

How to Check if You Are Affected

To determine whether your application is affected by CVE-2022-0870, inspect your project dependencies for Gogs.io/gogs:

inspect dependencies for gogs.io/gogs

Analyze the terminal output to locate any version of Gogs.io/gogs in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.12.5), 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 Gogs.io/gogs, 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

Gogs is a self-hosted Git service. The malicious user is able to discover services in the internal network through repository migration functionality. All installations accepting public traffic are affected. Internal network CIDRs are prohibited to be used as repository migration targets. Users should upgrade to 0.12.5 or the latest 0.13.0+dev. Gogs should be ran in its own private network until users can update.

CVE-2022-0870 Affected Gogs.io/gogs Versions

1 component(s)
Fixed Versions:
0.12.5
Product / Package Ecosystem Affected Versions Fixed Version
gogs.io/gogs
golang/gogs.io/gogs
Go
< 0.12.5
0.12.5

References

NVD — CVE-2022-0870 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-0870
Security Fix Commit FIX COMMIT
https://github.com/gogs/gogs/commit/91f2cde5e95f146bfe4765e837e7282df6c7cabb
Gogs.io/gogs Source Repository REPOSITORY
https://github.com/gogs/gogs
huntr.dev/bounties/327797d7-a... WEB
https://huntr.dev/bounties/327797d7-ae41-498f-9bff-cc0bf98cf531

Frequently Asked Questions

What is CVE-2022-0870?
CVE-2022-0870 is a security vulnerability in Gogs.io/gogs involving SSRF in repository migration under CWE-918: Server-Side Request Forgery (SSRF).
Which Gogs.io/gogs versions are affected?
Affected versions include releases prior to 0.12.5 across affected packages: gogs.io/gogs.
What version fixes CVE-2022-0870?
Upgrading to 0.12.5 (or the latest patched release for your respective branch) resolves the vulnerability.
Is gogs.io/gogs affected?
Yes, gogs.io/gogs is affected in releases prior to 0.12.5. Upgrade your dependency to 0.12.5 or later.
What is the CVSS score of CVE-2022-0870?
CVE-2022-0870 has a CVSS v3.1 base score of 5.0 (MODERATE) with vector string CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N.
What CWE is associated with CVE-2022-0870?
CVE-2022-0870 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-2022-0870?
Run the dependency tree command: 'inspect dependencies for gogs.io/gogs'. 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-7v5r-r995-q2x2",
  "modified" : "2022-03-24T23:23:21Z",
  "published" : "2022-03-12T00:00:34Z",
  "aliases" : [ "CVE-2022-0870" ],
  "summary" : "SSRF in repository migration",
  "details" : "Gogs is a self-hosted Git service. The malicious user is able to discover services in the internal network through repository migration functionality. All installations accepting public traffic are affected. Internal network CIDRs are prohibited to be used as repository migration targets. Users should upgrade to 0.12.5 or the latest 0.13.0+dev. Gogs should be ran in its own private network until users can update.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "gogs.io/gogs"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.12.5"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-0870"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/gogs/gogs/commit/91f2cde5e95f146bfe4765e837e7282df6c7cabb"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/gogs/gogs"
  }, {
    "type" : "WEB",
    "url" : "https://huntr.dev/bounties/327797d7-ae41-498f-9bff-cc0bf98cf531"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-918" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-03-14T22:57:02Z",
    "nvd_published_at" : "2022-03-11T11:15:00Z"
  }
}