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CVE-2024-1892— ReDoS Vulnerability in scrapy/scrapy's XMLFeedSpider

Quick assessment

Affected
scrapy scrapy/scrapy
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.

Scrapy是一个用Python编写的自由且开源的网络爬虫框架。 Scrapy存在安全漏洞，该漏洞源于使用易受攻击的正则表达式进行解析，处理恶意响应可能会在解析其内容期间导致极端的 CPU 和内存使用。

AI Predicted 7.5 Difficulty: Moderate EPSS 0.56% · P44

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2024-1892

Vulnerability Information
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Vulnerability Title
ReDoS Vulnerability in scrapy/scrapy's XMLFeedSpider
Source: CVE Program / CVE List V5
Vulnerability Description
A Regular Expression Denial of Service (ReDoS) vulnerability exists in the XMLFeedSpider class of the scrapy/scrapy project, specifically in the parsing of XML content. By crafting malicious XML content that exploits inefficient regular expression complexity used in the parsing process, an attacker can cause a denial-of-service (DoS) condition. This vulnerability allows for the system to hang and consume significant resources, potentially rendering services that utilize Scrapy for XML processing unresponsive.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1333
Source: CVE Program / CVE List V5
Vulnerability Title
Scrapy 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Scrapy是一个用Python编写的自由且开源的网络爬虫框架。 Scrapy存在安全漏洞，该漏洞源于使用易受攻击的正则表达式进行解析，处理恶意响应可能会在解析其内容期间导致极端的 CPU 和内存使用。
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
scrapy scrapy/scrapy unspecified ~ 2.11 -

II. Public POCs for CVE-2024-1892

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III. Intelligence Information for CVE-2024-1892

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Patches & Fixes for CVE-2024-1892 (1)

Vendor Advisories for CVE-2024-1892 (1)

IV. Related Vulnerabilities

Same product: scrapy/scrapy
Same vendor: scrapy
Same weakness: CWE-1333

V. Comments for CVE-2024-1892

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