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CVE-2024-26146— Possible Denial of Service Vulnerability in Rack Header Parsing

Quick assessment

Affected
rack rack
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Rack是模块化的Ruby Web服务器界面。 Rack 2.0.9.4之前、2.1.4.4之前、2.2.8.1之前 和 3.0.9.1之前版本存在安全漏洞，该漏洞源于精心设计的标头可能会导致 Rack 的媒体类型解析器花费比预期更长的时间，从而导致拒绝服务。

CVSS 5.3 · Medium EPSS 2.00% · P80

Possible ATT&CK Techniques 1 AI

T1499.002 · Service Exhaustion Flood
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I. Basic Information for CVE-2024-26146

Vulnerability Information
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Vulnerability Title
Possible Denial of Service Vulnerability in Rack Header Parsing
Source: CVE Program / CVE List V5
Vulnerability Description
Rack is a modular Ruby web server interface. Carefully crafted headers can cause header parsing in Rack to take longer than expected resulting in a possible denial of service issue. Accept and Forwarded headers are impacted. Ruby 3.2 has mitigations for this problem, so Rack applications using Ruby 3.2 or newer are unaffected. This vulnerability is fixed in 2.0.9.4, 2.1.4.4, 2.2.8.1, and 3.0.9.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1333
Source: CVE Program / CVE List V5
Vulnerability Title
Rack 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Rack是模块化的Ruby Web服务器界面。 Rack 2.0.9.4之前、2.1.4.4之前、2.2.8.1之前 和 3.0.9.1之前版本存在安全漏洞，该漏洞源于精心设计的标头可能会导致 Rack 的媒体类型解析器花费比预期更长的时间，从而导致拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
rack rack >= 3.0.0, < 3.0.9.1 -

II. Public POCs for CVE-2024-26146

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III. Intelligence Information for CVE-2024-26146

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Patches & Fixes for CVE-2024-26146 (4)

Vendor Advisories for CVE-2024-26146 (2)

Mailing List Discussions for CVE-2024-26146 (1)

Other References for CVE-2024-26146 (2)

Same Patch Batch · rack · 2024-02-28 · 3 CVEs total

CVE-2024-26141 5.8 MEDIUM Possible DoS Vulnerability with Range Header in Rack
CVE-2024-25126 5.3 MEDIUM Rack ReDos in content type parsing (2nd degree polynomial)

IV. Related Vulnerabilities

Same product: rack
Same vendor: rack
Same weakness: CWE-1333

V. Comments for CVE-2024-26146

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