6.1
MEDIUM
CVE-2023-40030
Rust Cargo XSS Feature Injection
Description

Cargo downloads a Rust project’s dependencies and compiles the project. Starting in Rust 1.60.0 and prior to 1.72, Cargo did not escape Cargo feature names when including them in the report generated by `cargo build --timings`. A malicious package included as a dependency may inject nearly arbitrary HTML here, potentially leading to cross-site scripting if the report is subsequently uploaded somewhere. The vulnerability affects users relying on dependencies from git, local paths, or alternative registries. Users who solely depend on crates.io are unaffected. Rust 1.60.0 introduced `cargo build --timings`, which produces a report of how long the different steps of the build process took. It includes lists of Cargo features for each crate. Prior to Rust 1.72, Cargo feature names were allowed to contain almost any characters (with some exceptions as used by the feature syntax), but it would produce a future incompatibility warning about them since Rust 1.49. crates.io is far more stringent about what it considers a valid feature name and has not allowed such feature names. As the feature names were included unescaped in the timings report, they could be used to inject Javascript into the page, for example with a feature name like `features = ["<img src='' onerror=alert(0)"]`. If this report were subsequently uploaded to a domain that uses credentials, the injected Javascript could access resources from the website visitor. This issue was fixed in Rust 1.72 by turning the future incompatibility warning into an error. Users should still exercise care in which package they download, by only including trusted dependencies in their projects. Please note that even with these vulnerabilities fixed, by design Cargo allows arbitrary code execution at build time thanks to build scripts and procedural macros: a malicious dependency will be able to cause damage regardless of these vulnerabilities. crates.io has server-side checks preventing this attack, and there are no packages on crates.io exploiting these vulnerabilities. crates.io users still need to excercise care in choosing their dependencies though, as remote code execution is allowed by design there as well.

INFO

Published Date :

Aug. 24, 2023, 11:15 p.m.

Last Modified :

Aug. 31, 2023, 2:35 p.m.

Remotely Exploitable :

Yes !

Impact Score :

2.7

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2023-40030 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Rust-lang rust
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-40030.

URL Resource
https://github.com/rust-lang/cargo/commit/9835622853f08be9a4b58ebe29dcec8f43b64b33 Patch
https://github.com/rust-lang/cargo/commit/f975722a0eac934c0722f111f107c4ea2f5c4365 Patch
https://github.com/rust-lang/cargo/pull/12291 Issue Tracking Patch
https://github.com/rust-lang/cargo/security/advisories/GHSA-wrrj-h57r-vx9p Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-40030 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-40030 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Aug. 31, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    Changed Reference Type https://github.com/rust-lang/cargo/commit/9835622853f08be9a4b58ebe29dcec8f43b64b33 No Types Assigned https://github.com/rust-lang/cargo/commit/9835622853f08be9a4b58ebe29dcec8f43b64b33 Patch
    Changed Reference Type https://github.com/rust-lang/cargo/commit/f975722a0eac934c0722f111f107c4ea2f5c4365 No Types Assigned https://github.com/rust-lang/cargo/commit/f975722a0eac934c0722f111f107c4ea2f5c4365 Patch
    Changed Reference Type https://github.com/rust-lang/cargo/pull/12291 No Types Assigned https://github.com/rust-lang/cargo/pull/12291 Issue Tracking, Patch
    Changed Reference Type https://github.com/rust-lang/cargo/security/advisories/GHSA-wrrj-h57r-vx9p No Types Assigned https://github.com/rust-lang/cargo/security/advisories/GHSA-wrrj-h57r-vx9p Vendor Advisory
    Added CPE Configuration OR *cpe:2.3:a:rust-lang:rust:*:*:*:*:*:*:*:* versions from (including) 1.60.0 up to (excluding) 1.72.0
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-40030 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-40030 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.35 }} 0.02%

score

0.72362

percentile

CVSS31 - Vulnerability Scoring System
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