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CVE-2021-4467— Positive Technologies MaxPatrol 8 & XSpider Remote DoS

Quick assessment

Affected
Positive Technologies MaxPatrol 8 (Server)
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.

Positive MaxPatrol 8和Positive XSpider都是俄罗斯Positive公司的产品。Positive MaxPatrol 8是一款漏洞管理平台。Positive XSpider是一款网络漏洞扫描器。 Positive MaxPatrol 8和Positive XSpider存在安全漏洞，该漏洞源于客户端通信服务未限制并发请求，可能导致拒绝服务攻击。

AI Predicted 7.5 Difficulty: Easy EPSS 0.46% · P38

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-4467

Vulnerability Information
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Vulnerability Title
Positive Technologies MaxPatrol 8 & XSpider Remote DoS
Source: CVE Program / CVE List V5
Vulnerability Description
Positive Technologies MaxPatrol 8 and XSpider contain a remote denial-of-service vulnerability in the client communication service on TCP port 2002. The service generates a new session identifier for each incoming connection without adequately limiting concurrent requests. An unauthenticated remote attacker can repeatedly issue HTTPS requests to the service, causing excessive allocation of session identifiers. Under load, session identifier collisions may occur, forcing active client sessions to disconnect and resulting in service disruption.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
Positive MaxPatrol 8和Positive XSpider 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Positive MaxPatrol 8和Positive XSpider都是俄罗斯Positive公司的产品。Positive MaxPatrol 8是一款漏洞管理平台。Positive XSpider是一款网络漏洞扫描器。 Positive MaxPatrol 8和Positive XSpider存在安全漏洞，该漏洞源于客户端通信服务未限制并发请求，可能导致拒绝服务攻击。
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
Positive Technologies MaxPatrol 8 (Server) 0 ~ 09.2020 -
Positive Technologies XSpider (Server) 0 ~ 09.2020 -

II. Public POCs for CVE-2021-4467

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2021-4467

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IV. Related Vulnerabilities

Same weakness: CWE-400

V. Comments for CVE-2021-4467

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