Detections
Analytics

actionmailer Ruby Library 3.x < 6.1.7.9 / 7.0.x < 7.0.8.5 / 7.1.x < 7.1.4.1 / 7.2.x < 7.2.1.1 DoS (CVE-2024-47889)

high Nessus Plugin ID 209307

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Synopsis

A Ruby library installed on the remote host is affected by a denial of service vulnerability.

Description

The version of the actionmailer Ruby library installed on the remote host is 3.x prior to 6.1.7.9, 7.0.x prior to 7.0.8.5, 7.1.x prior to 7.1.4.1 or 7.2.x prior to 7.2.1.1. It is, therefore, affected by a denial of service (DoS) vulnerability. The vulnerability lies in the block_format helper of Action Mailer. Carefully crafted text can cause the block_format helper to take an unexpected amount of time, possibly resulting in a DoS vulnerability. All users running an affected release should either upgrade to versions 6.1.7.9, 7.0.8.5, 7.1.4.1, or 7.2.1.1 or apply the relevant patch immediately. As a workaround, users can avoid calling the `block_format` helper or upgrade to Ruby 3.2. Ruby 3.2 has mitigations for this problem, so Rails applications using Ruby 3.2 or newer are unaffected. Rails 8.0.0.beta1 requires Ruby 3.2 or greater so is unaffected.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to actionmailer version 6.1.7.9, 7.0.8.5, 7.1.4.1, 7.2.1.1 or later.

See Also

https://github.com/rails/rails/security/advisories/GHSA-h47h-mwp9-c6q6

Plugin Details

Severity: High

ID: 209307

File Name: actionmailer_ruby_gem_CVE-2024-47889.nasl

Version: 1.2

Type: local

Agent: unix

Family: Misc.

Published: 10/18/2024

Updated: 10/21/2024

Configuration: Enable thorough checks

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2024-47889

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 6.6

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

CPE: cpe:/a:ruby:actionmailer

Required KB Items: Host/nix/packages, Host/ruby/modules/enumerated

Exploit Ease: No known exploits are available

Patch Publication Date: 10/16/2024

Vulnerability Publication Date: 10/16/2024

Reference Information

CVE: CVE-2024-47889

IAVB: 2024-B-0157