CVE-2023-28120

rubygem-activesupport: Possible XSS in SafeBuffer#bytesplice

Severity Score

5.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

There is a vulnerability in ActiveSupport if the new bytesplice method is called on a SafeBuffer with untrusted user input.

A Cross-Site-Scripting vulnerability was found in rubygem ActiveSupport. If the new bytesplice method is called on a SafeBuffer with untrusted user input, malicious code could be executed.

Two vulnerabilities were discovered in rails, the Ruby based server-side MVC web application framework, which could lead to XSS and DOM based cross-site scripting (CRS). This update also fixes a regression introduced in previous update that may block certain access for apps using development environment.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2023-03-10 CVE Reserved
2023-04-17 CVE Published
2025-01-09 CVE Updated
2025-04-03 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CAPEC

References (8)

URL	Tag	Source
https://discuss.rubyonrails.org/t/cve-2023-28120-possible-xss-security-vulnerability-in-safebuffer-bytesplice/82469
https://github.com/rails/rails/commit/3cf23c3f891e2e81c977ea4ab83b62bc2a444b70
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UPV6PVCX4VDJHLFFT42EXBBSGAWZICOW
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZE5W4MH6IE4DV7GELDK6ISCSTFLHKSYO
https://security.netapp.com/advisory/ntap-20240202-0006
https://www.debian.org/security/2023/dsa-5389

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2023-28120	2023-06-12
https://bugzilla.redhat.com/show_bug.cgi?id=2179637	2023-06-12

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Rails Search vendor "Rails"		ActiveSupport Search vendor "Rails" for product "ActiveSupport"				7.0.4.3 Search vendor "Rails" for product "ActiveSupport" and version "7.0.4.3"		en		Affected
Rails Search vendor "Rails"		ActiveSupport Search vendor "Rails" for product "ActiveSupport"				6.1.7.3 Search vendor "Rails" for product "ActiveSupport" and version "6.1.7.3"		en		Affected