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CVE-2021-23392— Regular Expression Denial of Service (ReDoS)

Quick assessment

Affected
n/a locutus
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.

Locutus PHP是一款使用在JavaScript中的开源PHP语言标准库。 locutus 2.0.15之前版本存在安全漏洞，该漏洞源于 gopher_parsedir 函数容易受到拒绝服务 (ReDoS)攻击。

CVSS 5.3 · Medium EPSS 1.94% · P79

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-23392

Vulnerability Information
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Vulnerability Title
Regular Expression Denial of Service (ReDoS)
Source: CVE Program / CVE List V5
Vulnerability Description
The package locutus before 2.0.15 are vulnerable to Regular Expression Denial of Service (ReDoS) via the gopher_parsedir function.
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
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
locutus 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Locutus PHP是一款使用在JavaScript中的开源PHP语言标准库。 locutus 2.0.15之前版本存在安全漏洞，该漏洞源于 gopher_parsedir 函数容易受到拒绝服务 (ReDoS)攻击。
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
- locutus unspecified ~ 2.0.15 -

II. Public POCs for CVE-2021-23392

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III. Intelligence Information for CVE-2021-23392

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Patches & Fixes for CVE-2021-23392 (2)

Vendor Advisories for CVE-2021-23392 (1)

Same Patch Batch · n/a · 2021-06-08 · 30 CVEs total

CVE-2021-26472 10.0 CRITICAL Unauthenticated remote command execution with SYSTEM privileges in Vembu products
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CVE-2021-26474 8.6 HIGH UNAUTHENTICATED SERVER SIDE REQUEST FORGERY IN VEMBU PRODUCTS
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CVE-2021-22116 RabbitMQ输入验证错误漏洞
CVE-2021-31738 Adiscon LogAnalyzer 跨站脚本漏洞
CVE-2021-23169 Industrial Light And Magic（lim） OpenEXR 缓冲区错误漏洞
CVE-2021-23215 Industrial Light and Magic OpenEXR 资源管理错误漏洞
CVE-2021-30357 Arch Linux安全漏洞
CVE-2021-31807 Squid 输入验证错误漏洞
CVE-2021-33560 Libgcrypt 安全漏洞
CVE-2021-33571 Django 代码问题漏洞
CVE-2020-26517 Intland Software codeBeamer ALM 跨站脚本漏洞
CVE-2020-26515 Intland codeBeamer ALM 安全漏洞
CVE-2021-31342 Solid Edge SE 缓冲区错误漏洞

Showing top 20 of 30 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: locutus
Same vendor: n/a

V. Comments for CVE-2021-23392

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