Vulnerabilities in pkg:golang/github.com/projectdiscovery/nuclei

PACKAGE
Advisory Identifier: GHSA-2xx4-jj5v-6mff
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Advisory Summary

CVE-2023-37896 is a HIGH (CVSS 7.5) path traversal vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting Github.com/projectdiscovery/nuclei/v2 libraries in the Go ecosystem. The issue involves nuclei path traversal vulnerability. Remediation is available by upgrading affected packages to version 2.9.9.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:golang/github.com/projectdiscovery/nuclei

1 Known Advisory Record(s)

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

Advisory ID CVE / NVD Severity Summary
GHSA-2xx4-jj5v-6mff CVE-2023-37896 HIGH Nuclei Path Traversal vulnerability

CVE-2023-37896 at a Glance

CVE Identifier CVE-2023-37896
GHSA Identifier GHSA-2xx4-jj5v-6mff
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Product Github.com/projectdiscovery/nuclei/v2
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 7.5

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: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 High (C:H)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2023-37896

To remediate this vulnerability, upgrade all affected Github.com/projectdiscovery/nuclei/v2 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/projectdiscovery/nuclei/v2 fixed: 2.9.9 
Upgrade github.com/projectdiscovery/nuclei/v2 to 2.9.9
github.com/projectdiscovery/nuclei fixed: 2.9.9 
Upgrade github.com/projectdiscovery/nuclei to 2.9.9
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 github.com/projectdiscovery/nuclei/v2

How to Check if You Are Affected

To determine whether your application is affected by CVE-2023-37896, inspect your project dependencies for Github.com/projectdiscovery/nuclei/v2:

inspect dependencies for github.com/projectdiscovery/nuclei/v2

Analyze the terminal output to locate any version of Github.com/projectdiscovery/nuclei/v2 in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.9.9), 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 Github.com/projectdiscovery/nuclei/v2, 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

## Overview We have identified and addressed a security issue in the Nuclei project that affected users utilizing Nuclei as **Go code (SDK)** running **custom templates**. This issue did not affect CLI users. The problem was related to sanitization issues with payloads loading in `sandbox` mode. ## Details In the previous versions, there was a potential risk with payloads loading in sandbox mode. The issue occurred due to relative paths not being converted to absolute paths before doing the check for `sandbox` flag allowing arbitrary files to be read on the filesystem in certain cases when using Nuclei from `Go` SDK implementation. This issue has been fixed in the latest release, v2.9.9. We have also enabled sandbox by default for filesystem loading. This can be optionally disabled if required. The `-sandbox` option has been **deprecated** and is now divided into two new options: `-lfa` (allow local file access) which is disabled by default and `-lna` (restrict local network access) which can be optionally disabled by user. The `-lfa` allows file (payload) access anywhere on the system (disabling sandbox effectively), and `-lna` blocks connections to the local/private network. ## Affected Versions This issue affected all versions of Nuclei prior to v2.9.9. ## Patches We recommend all users upgrade to the latest version, [v2.9.9](https://github.com/projectdiscovery/nuclei/releases/tag/v2.9.9), which includes the security fix. ### References - [patch](https://github.com/projectdiscovery/nuclei/pull/3927) - [releases](https://github.com/projectdiscovery/nuclei/releases/tag/v2.9.9) ## Acknowledgments We would like to thank **keomutchoiboi** who reported this issue to us via our security email, [security@projectdiscovery.io](mailto:security@projectdiscovery.io). We appreciate the responsible disclosure of this issue.

CVE-2023-37896 Affected Github.com/projectdiscovery/nuclei/v2 Versions

2 component(s)
Fixed Versions:
2.9.9
Product / Package Ecosystem Affected Versions Fixed Version
github.com/projectdiscovery/nuclei/v2
golang/github.com/projectdiscovery/nuclei/v2
Go
< 2.9.9
2.9.9
github.com/projectdiscovery/nuclei
golang/github.com/projectdiscovery/nuclei
Go
< 2.9.9
2.9.9

References

GitHub Advisory / Wiki ADVISORY
https://github.com/projectdiscovery/nuclei/security/advisories/GHSA-2xx4-jj5v-6mff
NVD — CVE-2023-37896 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-37896
Github.com/projectdiscovery/nuclei/v2 Source Repository REPOSITORY
https://github.com/projectdiscovery/nuclei/pull/3927
Github.com/projectdiscovery/nuclei/v2 Source Repository REPOSITORY
https://github.com/projectdiscovery/nuclei
Github.com/projectdiscovery/nuclei/v2 Release RELEASE
https://github.com/projectdiscovery/nuclei/releases/tag/v2.9.9

Frequently Asked Questions

What is CVE-2023-37896?
CVE-2023-37896 is a security vulnerability in Github.com/projectdiscovery/nuclei/v2 involving Nuclei Path Traversal vulnerability under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').
Which Github.com/projectdiscovery/nuclei/v2 versions are affected?
Affected versions include releases prior to 2.9.9 across affected packages: github.com/projectdiscovery/nuclei/v2, github.com/projectdiscovery/nuclei.
What version fixes CVE-2023-37896?
Upgrading to 2.9.9 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/projectdiscovery/nuclei/v2 affected?
Yes, github.com/projectdiscovery/nuclei/v2 is affected in releases prior to 2.9.9. Upgrade your dependency to 2.9.9 or later.
Is github.com/projectdiscovery/nuclei affected?
Yes, github.com/projectdiscovery/nuclei is affected in releases prior to 2.9.9. Upgrade your dependency to 2.9.9 or later.
What is the CVSS score of CVE-2023-37896?
CVE-2023-37896 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2023-37896?
CVE-2023-37896 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-2023-37896?
Run the dependency tree command: 'inspect dependencies for github.com/projectdiscovery/nuclei/v2'. 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-2xx4-jj5v-6mff",
  "modified" : "2023-10-20T17:45:19Z",
  "published" : "2023-08-04T17:27:00Z",
  "aliases" : [ "CVE-2023-37896" ],
  "summary" : "Nuclei Path Traversal vulnerability",
  "details" : "## Overview\n\nWe have identified and addressed a security issue in the Nuclei project that affected users utilizing Nuclei as **Go code (SDK)** running **custom templates**. This issue did not affect CLI users. The problem was related to sanitization issues with payloads loading in `sandbox` mode.\n\n## Details\n\nIn the previous versions, there was a potential risk with payloads loading in sandbox mode. The issue occurred due to relative paths not being converted to absolute paths before doing the check for `sandbox` flag allowing arbitrary files to be read on the filesystem in certain cases when using Nuclei from `Go` SDK implementation. \n\nThis issue has been fixed in the latest release, v2.9.9. We have also enabled sandbox by default for filesystem loading. This can be optionally disabled if required.\n\nThe `-sandbox` option has been **deprecated** and is now divided into two new options: `-lfa` (allow local file access) which is disabled by default and `-lna` (restrict local network access) which can be optionally disabled by user. The `-lfa` allows file (payload) access anywhere on the system (disabling sandbox effectively), and `-lna` blocks connections to the local/private network.\n\n## Affected Versions\n\nThis issue affected all versions of Nuclei prior to v2.9.9.\n\n## Patches\n\nWe recommend all users upgrade to the latest version, [v2.9.9](https://github.com/projectdiscovery/nuclei/releases/tag/v2.9.9), which includes the security fix.\n\n### References\n\n- [patch](https://github.com/projectdiscovery/nuclei/pull/3927)\n- [releases](https://github.com/projectdiscovery/nuclei/releases/tag/v2.9.9)\n\n## Acknowledgments\n\nWe would like to thank **keomutchoiboi** who reported this issue to us via our security email, [security@projectdiscovery.io](mailto:security@projectdiscovery.io). We appreciate the responsible disclosure of this issue.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
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    },
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      }, {
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    } ]
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    "package" : {
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      "name" : "github.com/projectdiscovery/nuclei"
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    "ranges" : [ {
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        "fixed" : "2.9.9"
      } ]
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  } ],
  "references" : [ {
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  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-37896"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/projectdiscovery/nuclei/pull/3927"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/projectdiscovery/nuclei"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/projectdiscovery/nuclei/releases/tag/v2.9.9"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-08-04T17:27:00Z",
    "nvd_published_at" : "2023-08-04T16:15:09Z"
  }
}