Vulnerabilities in pkg:golang/github.com/elves/elvish

PACKAGE
Advisory Identifier: GHSA-fpv6-f8jw-rc3r
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Advisory Summary

CVE-2021-41088 is a HIGH (CVSS 8.0) remote code execution vulnerability (CWE-668: Exposure of Resource to Wrong Sphere) affecting Github.com/elves/elvish libraries in the Go ecosystem. The issue involves elvish vulnerable to remote code execution via the web ui backend. Remediation is available by upgrading affected packages to version 0.14.0.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:golang/github.com/elves/elvish

1 Known Advisory Record(s)

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

Advisory ID CVE / NVD Severity Summary
GHSA-fpv6-f8jw-rc3r CVE-2021-41088 HIGH Elvish vulnerable to remote code execution via the web UI backend

CVE-2021-41088 at a Glance

CVE Identifier CVE-2021-41088
GHSA Identifier GHSA-fpv6-f8jw-rc3r
Severity HIGH
CVSS v3.1 Base Score 8.0
CWE Classification CWE-668: Exposure of Resource to Wrong Sphere
Affected Product Github.com/elves/elvish
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 8.0

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
Privileges Required Low (PR:L)
User Interaction Required (UI:R)
Scope Changed (S:C)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2021-41088

To remediate this vulnerability, upgrade all affected Github.com/elves/elvish 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/elves/elvish fixed: 0.14.0 
Upgrade github.com/elves/elvish to 0.14.0
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/elves/elvish

How to Check if You Are Affected

To determine whether your application is affected by CVE-2021-41088, inspect your project dependencies for Github.com/elves/elvish:

inspect dependencies for github.com/elves/elvish

Analyze the terminal output to locate any version of Github.com/elves/elvish in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.14.0), 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-668: Exposure of Resource to Wrong Sphere, where the product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource. In Github.com/elves/elvish, 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 Elvish's backend for the experimental web UI (started by `elvish -web`) hosts an endpoint that allows executing the code sent from the web UI. The backend does not check the origin of requests correctly. As a result, if the user has the web UI backend open and visits a compromised or malicious website, the website can send arbitrary code to the endpoint in localhost. ### Patches All Elvish releases since 0.14.0 no longer include the experimental web UI, although it is still possible for the user to build a version from source that includes it. The issue can be patched for previous versions by removing the web UI (found in web, pkg/web or pkg/prog/web, depending on the exact version). ### Workarounds Do not use the experimental web UI. ### For more information If you have any questions or comments about this advisory, please email xiaqqaix@gmail.com.

CVE-2021-41088 Affected Github.com/elves/elvish Versions

1 component(s)
Fixed Versions:
0.14.0
Product / Package Ecosystem Affected Versions Fixed Version
github.com/elves/elvish
golang/github.com/elves/elvish
Go
< 0.14.0
0.14.0

References

GitHub Advisory / Wiki ADVISORY
https://github.com/elves/elvish/security/advisories/GHSA-fpv6-f8jw-rc3r
NVD — CVE-2021-41088 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-41088
Security Fix Commit FIX COMMIT
https://github.com/elves/elvish/commit/ccc2750037bbbfafe9c1b7a78eadd3bd16e81fe5
Github.com/elves/elvish Source Repository REPOSITORY
https://github.com/elves/elvish

Frequently Asked Questions

What is CVE-2021-41088?
CVE-2021-41088 is a security vulnerability in Github.com/elves/elvish involving Elvish vulnerable to remote code execution via the web UI backend under CWE-668: Exposure of Resource to Wrong Sphere.
Which Github.com/elves/elvish versions are affected?
Affected versions include releases prior to 0.14.0 across affected packages: github.com/elves/elvish.
What version fixes CVE-2021-41088?
Upgrading to 0.14.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/elves/elvish affected?
Yes, github.com/elves/elvish is affected in releases prior to 0.14.0. Upgrade your dependency to 0.14.0 or later.
What is the CVSS score of CVE-2021-41088?
CVE-2021-41088 has a CVSS v3.1 base score of 8.0 (HIGH) with vector string CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H.
What CWE is associated with CVE-2021-41088?
CVE-2021-41088 is classified under CWE-668: Exposure of Resource to Wrong Sphere (The product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource.).
How can I check Go dependencies for CVE-2021-41088?
Run the dependency tree command: 'inspect dependencies for github.com/elves/elvish'. 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-fpv6-f8jw-rc3r",
  "modified" : "2022-08-15T20:07:49Z",
  "published" : "2021-09-23T23:17:33Z",
  "aliases" : [ "CVE-2021-41088" ],
  "summary" : "Elvish vulnerable to remote code execution via the web UI backend",
  "details" : "### Impact\n\nElvish's backend for the experimental web UI (started by `elvish -web`) hosts an endpoint that allows executing the code sent from the web UI.\n\nThe backend does not check the origin of requests correctly. As a result, if the user has the web UI backend open and visits a compromised or malicious website, the website can send arbitrary code to the endpoint in localhost.\n\n### Patches\n\nAll Elvish releases since 0.14.0 no longer include the experimental web UI, although it is still possible for the user to build a version from source that includes it.\n\nThe issue can be patched for previous versions by removing the web UI (found in web, pkg/web or pkg/prog/web, depending on the exact version).\n\n### Workarounds\n\nDo not use the experimental web UI.\n\n### For more information\n\nIf you have any questions or comments about this advisory, please email xiaqqaix@gmail.com.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/elves/elvish"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.14.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/elves/elvish/security/advisories/GHSA-fpv6-f8jw-rc3r"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-41088"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/elves/elvish/commit/ccc2750037bbbfafe9c1b7a78eadd3bd16e81fe5"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/elves/elvish"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-346", "CWE-668" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-09-23T21:06:47Z",
    "nvd_published_at" : "2021-09-23T20:15:00Z"
  }
}