CyberSecBulletin
CVE-2024-28181NVD status: Analyzed

turbo_boost-commands: Improper Neutralization of Special Elements in Output Used by a Downstream Component

CVE-2024-28181 is a high-severity improper neutralization of special elements in output used by a downstream component vulnerability in turbo_boost-commands from Hopsoft, with a CVSS 3.1 base score of 8.1 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected turbo_boost-commands versions: < 0.1.3; >= 0.2.0, < 0.2.2. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.8% chance of exploitation within 30 days, higher than 57% of scored CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Update turboboost_commands to 0.1.3 or 0.2.2, whichever matches your release line, or a later version.
  2. Read the advisory on github.com for workarounds and exact fixed builds.
  3. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.

Affected products and versions

VendorProductAffected versionsFixed in
Hopsoftturbo_boost-commands< 0.1.3; >= 0.2.0, < 0.2.2Not stated
Hopsoftturboboost_commandsbefore 0.1.3; 0.2.0 up to, but not including, 0.2.20.1.3, 0.2.2

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
HighSuccess depends on conditions outside the attacker's control.
Privileges required
NoneNo account or login is needed.
User interaction
NoneNo action by a victim is required.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
HighData or code can be modified at will.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H. Scored by CNA (github.com).

Official description

turbo_boost-commands is a set of commands to help you build robust reactive applications with Rails & Hotwire. TurboBoost Commands has existing protections in place to guarantee that only public methods on Command classes can be invoked; however, the existing checks aren't as robust as they should be. It's possible for a sophisticated attacker to invoke more methods than should be permitted depending on the the strictness of authorization checks that individual applications enforce. Being able to call some of these methods can have security implications. Commands verify that the class must be a `Command` and that the method requested is defined as a public method; however, this isn't robust enough to guard against all unwanted code execution. The library should more strictly enforce which methods are considered safe before allowing them to be executed. This issue has been addressed in versions 0.1.3, and 0.2.2. Users are advised to upgrade. Users unable to upgrade should see the repository GHSA for workaround advice.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Improper Neutralization of Special Elements in Output Used by a Downstream Component

The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.

How developers prevent this class of flaw

  • Programming languages and supporting technologies might be chosen which are not subject to these issues.
  • Utilize an appropriate mix of allowlist and denylist parsing to filter control-plane syntax from all input.

More Improper Neutralization of Special Elements in Output Used by a Downstream Component vulnerabilities (CWE-74)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
  3. Record last changed materially (score, affected products, status or references).

References

Recent Improper Neutralization of Special Elements in Output Used by a Downstream Component vulnerabilities

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