RUSTSEC-2021-0001

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Source

https://rustsec.org/advisories/RUSTSEC-2021-0001

Import Source

https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2021-0001.json

JSON Data

https://api.osv.dev/v1/vulns/RUSTSEC-2021-0001

Aliases

Published

2021-01-04T12:00:00Z

Modified

2023-11-08T04:03:18.452926Z

Severity

6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator

Summary

XSS in mdBook's search page

Details

This is a cross-post of the official security advisory. The official post contains a signed version with our PGP key, as well.

The Rust Security Response Working Group was recently notified of a security issue affecting the search feature of mdBook, which could allow an attacker to execute arbitrary JavaScript code on the page.

The CVE for this vulnerability is CVE-2020-26297.

Overview

The search feature of mdBook (introduced in version 0.1.4) was affected by a cross site scripting vulnerability that allowed an attacker to execute arbitrary JavaScript code on an user's browser by tricking the user into typing a malicious search query, or tricking the user into clicking a link to the search page with the malicious search query prefilled.

mdBook 0.4.5 fixes the vulnerability by properly escaping the search query.

Mitigations

Owners of websites built with mdBook have to upgrade to mdBook 0.4.5 or greater and rebuild their website contents with it. It's possible to install mdBook 0.4.5 on the local system with:

cargo install mdbook --version 0.4.5 --force

Acknowledgements

Thanks to Kamil Vavra for responsibly disclosing the vulnerability to us according to our security policy.

Timeline of events

All times are listed in UTC.

2020-12-30 20:14 - The issue is reported to the Rust Security Response WG
2020-12-30 20:32 - The issue is acknowledged and the investigation began
2020-12-30 21:21 - Found the cause of the vulnerability and prepared the patch
2021-01-04 15:00 - Patched version released and vulnerability disclosed

Database specific

{
    "license": "CC0-1.0"
}

References

Affected packages

crates.io / mdbook

Package

Name: mdbook; View open source insights on deps.dev
Purl: pkg:cargo/mdbook

Affected ranges

Type: SEMVER
Events: Introduced

0.1.4-0

Fixed

0.4.5

Ecosystem specific

{
    "affected_functions": null,
    "affects": {
        "os": [],
        "functions": [],
        "arch": []
    }
}

Database specific

{
    "cvss": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
    "informational": null,
    "categories": [
        "code-execution"
    ]
}