Vulnerabilities in pkg:golang/github.com/liamg/gitjacker

PACKAGE
Advisory Identifier: GHSA-4j5x-f394-xx79
Share
Advisory Summary

CVE-2021-29417 is a CRITICAL (CVSS 9.8) gitjacker arbitrary code execution vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting Github.com/liamg/gitjacker libraries in the Go ecosystem. The issue involves gitjacker arbitrary code execution. Remediation is available by upgrading affected packages to version 0.1.0.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:golang/github.com/liamg/gitjacker

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:golang/github.com/liamg/gitjacker. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-4j5x-f394-xx79 CVE-2021-29417 CRITICAL gitjacker arbitrary code execution

CVE-2021-29417 at a Glance

CVE Identifier CVE-2021-29417
GHSA Identifier GHSA-4j5x-f394-xx79
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Product Github.com/liamg/gitjacker
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 9.8

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:H/I:H/A:H).

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 High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2021-29417

To remediate this vulnerability, upgrade all affected Github.com/liamg/gitjacker 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/liamg/gitjacker fixed: 0.1.0 
Upgrade github.com/liamg/gitjacker to 0.1.0
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/liamg/gitjacker

How to Check if You Are Affected

To determine whether your application is affected by CVE-2021-29417, inspect your project dependencies for Github.com/liamg/gitjacker:

inspect dependencies for github.com/liamg/gitjacker

Analyze the terminal output to locate any version of Github.com/liamg/gitjacker in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.1.0), 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-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 Github.com/liamg/gitjacker, 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

gitjacker before 0.1.0 allows remote attackers to execute arbitrary code via a crafted .git directory because of directory traversal.

CVE-2021-29417 Affected Github.com/liamg/gitjacker Versions

1 component(s)
Fixed Versions:
0.1.0
Product / Package Ecosystem Affected Versions Fixed Version
github.com/liamg/gitjacker
golang/github.com/liamg/gitjacker
Go
< 0.1.0
0.1.0

References

NVD — CVE-2021-29417 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-29417
Github.com/liamg/gitjacker Source Repository REPOSITORY
https://github.com/liamg/gitjacker/compare/v0.0.3...v0.1.0
Github.com/liamg/gitjacker Release RELEASE
https://github.com/liamg/gitjacker/releases/tag/v0.1.0
vuln.ryotak.me/advisories/5 WEB
https://vuln.ryotak.me/advisories/5

Frequently Asked Questions

What is CVE-2021-29417?
CVE-2021-29417 is a security vulnerability in Github.com/liamg/gitjacker involving gitjacker arbitrary code execution under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').
Which Github.com/liamg/gitjacker versions are affected?
Affected versions include releases prior to 0.1.0 across affected packages: github.com/liamg/gitjacker.
What version fixes CVE-2021-29417?
Upgrading to 0.1.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/liamg/gitjacker affected?
Yes, github.com/liamg/gitjacker is affected in releases prior to 0.1.0. Upgrade your dependency to 0.1.0 or later.
What is the CVSS score of CVE-2021-29417?
CVE-2021-29417 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2021-29417?
CVE-2021-29417 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-2021-29417?
Run the dependency tree command: 'inspect dependencies for github.com/liamg/gitjacker'. 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-4j5x-f394-xx79",
  "modified" : "2023-07-13T17:04:33Z",
  "published" : "2022-05-24T22:01:30Z",
  "aliases" : [ "CVE-2021-29417" ],
  "summary" : "gitjacker arbitrary code execution",
  "details" : "gitjacker before 0.1.0 allows remote attackers to execute arbitrary code via a crafted .git directory because of directory traversal.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/liamg/gitjacker"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.1.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-29417"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/liamg/gitjacker/compare/v0.0.3...v0.1.0"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/liamg/gitjacker/releases/tag/v0.1.0"
  }, {
    "type" : "WEB",
    "url" : "https://vuln.ryotak.me/advisories/5"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-07-13T17:04:33Z",
    "nvd_published_at" : null
  }
}