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CVE-2020-7663

Quick assessment

Affected
n/a websocket-extensions (ruby)
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

websocket-extensions是一款开源的WebSocket通用扩展管理器。 websocket-extensions（ruby）0.1.5之前版本中存在安全漏洞。攻击者可借助恶意的payload利用该漏洞造成拒绝服务。

AI Predicted 7.5 Difficulty: Easy EPSS 4.53% · P91

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2020-7663

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
websocket-extensions ruby module prior to 0.1.5 allows Denial of Service (DoS) via Regex Backtracking. The extension parser may take quadratic time when parsing a header containing an unclosed string parameter value whose content is a repeating two-byte sequence of a backslash and some other character. This could be abused by an attacker to conduct Regex Denial Of Service (ReDoS) on a single-threaded server by providing a malicious payload with the Sec-WebSocket-Extensions header.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
websocket-extensions 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
websocket-extensions是一款开源的WebSocket通用扩展管理器。 websocket-extensions（ruby）0.1.5之前版本中存在安全漏洞。攻击者可借助恶意的payload利用该漏洞造成拒绝服务。
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
- websocket-extensions (ruby) All versions prior to 0.1.5 -

II. Public POCs for CVE-2020-7663

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III. Intelligence Information for CVE-2020-7663

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Patches & Fixes for CVE-2020-7663 (1)

Vendor Advisories for CVE-2020-7663 (2)

Security Blog Posts for CVE-2020-7663 (1)

Same Patch Batch · n/a · 2020-06-02 · 24 CVEs total

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CVE-2020-7662 websocket-extensions 安全漏洞
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Showing top 20 of 24 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same vendor: n/a

V. Comments for CVE-2020-7663

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