CVE-2022-1993: Gogs.io/gogs Path Traversal Vulnerability

HIGH
Advisory Identifier: GHSA-6vcc-v9vw-g2x5
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CVSS 8.1
CWE-22
Published
Advisory Summary

CVE-2022-1993 is a HIGH (CVSS 8.1) path traversal vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting Gogs.io/gogs libraries in the Go ecosystem. The issue involves path traversal in git http endpoints in gogs. Remediation is available by upgrading affected packages to version 0.12.9.

CVE-2022-1993 at a Glance

CVE Identifier CVE-2022-1993
GHSA Identifier GHSA-6vcc-v9vw-g2x5
Severity HIGH
CVSS v3.1 Base Score 8.1
CWE Classification CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Product Gogs.io/gogs
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 8.1

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:N).

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 None (A:N)

How to Fix CVE-2022-1993

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: 0.12.9 
Upgrade gogs.io/gogs to 0.12.9
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-2022-1993, 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 0.12.9), 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-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), where the product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. 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

### Impact The malicious user is able to craft HTTP requests to access unauthorized Git directories. All installations with are affected. ### Patches Path cleaning has accommodated for Git HTTP endpoints. Users should upgrade to 0.12.9 or the latest 0.13.0+dev. ### Workarounds N/A ### References https://huntr.dev/bounties/22f9c074-cf60-4c67-b5c4-72fdf312609d/ ### For more information If you have any questions or comments about this advisory, please post on #7002.

CVE-2022-1993 Affected Gogs.io/gogs Versions

1 component(s)
Fixed Versions:
0.12.9
Product / Package Ecosystem Affected Versions Fixed Version
gogs.io/gogs
golang/gogs.io/gogs
Go
< 0.12.9
0.12.9

References

GitHub Advisory / Wiki ADVISORY
https://github.com/gogs/gogs/security/advisories/GHSA-6vcc-v9vw-g2x5
NVD — CVE-2022-1993 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-1993
Gogs.io/gogs Source Repository REPOSITORY
https://github.com/gogs/gogs/issues/7002
Security Fix Commit FIX COMMIT
https://github.com/gogs/gogs/commit/9bf748b6c4c9a17d3aa77f6b9abcfae65451febf
Gogs.io/gogs Source Repository REPOSITORY
https://github.com/gogs/gogs
huntr.dev/bounties/22f9c074-c... WEB
https://huntr.dev/bounties/22f9c074-cf60-4c67-b5c4-72fdf312609d

Frequently Asked Questions

What is CVE-2022-1993?
CVE-2022-1993 is a security vulnerability in Gogs.io/gogs involving Path Traversal in Git HTTP endpoints in Gogs under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').
Which Gogs.io/gogs versions are affected?
Affected versions include releases prior to 0.12.9 across affected packages: gogs.io/gogs.
What version fixes CVE-2022-1993?
Upgrading to 0.12.9 (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 0.12.9. Upgrade your dependency to 0.12.9 or later.
What is the CVSS score of CVE-2022-1993?
CVE-2022-1993 has a CVSS v3.1 base score of 8.1 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.
What CWE is associated with CVE-2022-1993?
CVE-2022-1993 is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.).
How can I check Go dependencies for CVE-2022-1993?
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-6vcc-v9vw-g2x5",
  "modified" : "2022-06-17T19:20:55Z",
  "published" : "2022-06-08T22:34:23Z",
  "aliases" : [ "CVE-2022-1993" ],
  "summary" : "Path Traversal in Git HTTP endpoints in Gogs",
  "details" : "### Impact\n\nThe malicious user is able to craft HTTP requests to access unauthorized Git directories. All installations with are affected.\n\n### Patches\n\nPath cleaning has accommodated for Git HTTP endpoints. Users should upgrade to 0.12.9 or the latest 0.13.0+dev.\n\n### Workarounds\n\nN/A\n\n### References\n\nhttps://huntr.dev/bounties/22f9c074-cf60-4c67-b5c4-72fdf312609d/\n\n### For more information\n\nIf you have any questions or comments about this advisory, please post on #7002.\n",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "gogs.io/gogs"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.12.9"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/gogs/gogs/security/advisories/GHSA-6vcc-v9vw-g2x5"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-1993"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/gogs/gogs/issues/7002"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/gogs/gogs/commit/9bf748b6c4c9a17d3aa77f6b9abcfae65451febf"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/gogs/gogs"
  }, {
    "type" : "WEB",
    "url" : "https://huntr.dev/bounties/22f9c074-cf60-4c67-b5c4-72fdf312609d"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-06-08T22:34:23Z",
    "nvd_published_at" : "2022-06-09T17:15:00Z"
  }
}