CVE-2018-10895: Qutebrowser Qutebrowser CSRF Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-wgmx-52ph-qqcw
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CVSS 8.8
CWE-352
Published
Advisory Summary

CVE-2018-10895 is a HIGH (CVSS 8.8) qutebrowser csrf vulnerability vulnerability (CWE-352: Cross-Site Request Forgery (CSRF)) affecting Qutebrowser libraries in the PyPI ecosystem. The issue involves qutebrowser csrf vulnerability. Remediation is available by upgrading affected packages to version 1.4.1.

CVE-2018-10895 at a Glance

CVE Identifier CVE-2018-10895
GHSA Identifier GHSA-wgmx-52ph-qqcw
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification CWE-352: Cross-Site Request Forgery (CSRF)
Affected Product Qutebrowser
Package Ecosystem PyPI
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:3.0/AV:N/AC:L/PR:N/UI:R/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 Required (UI:R)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2018-10895

To remediate this vulnerability, upgrade all affected Qutebrowser dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

qutebrowser fixed: 1.4.1 
pip install qutebrowser>=1.4.1
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show qutebrowser

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2018-10895, inspect your installed packages using pip:

pip show qutebrowser

Analyze the terminal output to locate any version of Qutebrowser in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.4.1), your application is affected.

Note: The pip show qutebrowser command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-352: Cross-Site Request Forgery (CSRF), where the web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor. In Qutebrowser, 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

qutebrowser before version 1.4.1 is vulnerable to a cross-site request forgery flaw that allows websites to access `qute://*` URLs. A malicious website could exploit this to load a `qute://settings/set` URL, which then sets `editor.command` to a bash script, resulting in arbitrary code execution.

CVE-2018-10895 Affected Qutebrowser Versions

1 component(s)
Fixed Versions:
1.4.1
Product / Package Ecosystem Affected Versions Fixed Version
qutebrowser
pypi/qutebrowser
PyPI
< 1.4.1
1.4.1

References

NVD — CVE-2018-10895 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-10895
Security Fix Commit FIX COMMIT
https://github.com/qutebrowser/qutebrowser/commit/43e58ac865ff862c2008c510fc5f7627e10b4660
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10895
Qutebrowser Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/qutebrowser/PYSEC-2018-27.yaml
Qutebrowser Source Repository REPOSITORY
https://github.com/qutebrowser/qutebrowser
Qutebrowser Security Information SECURITY
http://www.openwall.com/lists/oss-security/2018/07/11/7

Frequently Asked Questions

What is CVE-2018-10895?
CVE-2018-10895 is a security vulnerability in Qutebrowser involving Qutebrowser CSRF Vulnerability under CWE-352: Cross-Site Request Forgery (CSRF).
Which Qutebrowser versions are affected?
Affected versions include releases prior to 1.4.1 across affected packages: qutebrowser.
What version fixes CVE-2018-10895?
Upgrading to 1.4.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is qutebrowser affected?
Yes, qutebrowser is affected in releases prior to 1.4.1. Upgrade your dependency to 1.4.1 or later.
What is the CVSS score of CVE-2018-10895?
CVE-2018-10895 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2018-10895?
CVE-2018-10895 is classified under CWE-352: Cross-Site Request Forgery (CSRF) (The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.).
How can I check PyPI dependencies for CVE-2018-10895?
Run the dependency tree command: 'pip show qutebrowser'. 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-wgmx-52ph-qqcw",
  "modified" : "2024-10-16T20:50:08Z",
  "published" : "2018-10-10T16:05:23Z",
  "aliases" : [ "CVE-2018-10895" ],
  "summary" : "Qutebrowser CSRF Vulnerability",
  "details" : "qutebrowser before version 1.4.1 is vulnerable to a cross-site request forgery flaw that allows websites to access `qute://*` URLs. A malicious website could exploit this to load a `qute://settings/set` URL, which then sets `editor.command` to a bash script, resulting in arbitrary code execution.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "qutebrowser"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.4.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-10895"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/qutebrowser/qutebrowser/commit/43e58ac865ff862c2008c510fc5f7627e10b4660"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10895"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/qutebrowser/PYSEC-2018-27.yaml"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/qutebrowser/qutebrowser"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2018/07/11/7"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-352" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-06-16T22:00:28Z",
    "nvd_published_at" : null
  }
}