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CVE-2022-30780

Quick assessment

Affected
n/a n/a
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

lighttpd是德国Jan Kneschke个人开发者的一款开源的Web服务器。 Lighttpd 1.4.56 到 1.4.58 版本存在安全漏洞，该漏洞源于 connections.c 中的 connection_read_header_more 有一个拼写错误，会破坏对大型标头的多个读取操作的使用。远程攻击者利用该漏洞可导致拒绝服务（卡住的连接消耗 CPU）。

AI Predicted 7.5 Difficulty: Easy EPSS 56.42% · P99

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2022-30780

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Lighttpd 1.4.56 through 1.4.58 allows a remote attacker to cause a denial of service (CPU consumption from stuck connections) because connection_read_header_more in connections.c has a typo that disrupts use of multiple read operations on large headers.
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
lighttpd 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
lighttpd是德国Jan Kneschke个人开发者的一款开源的Web服务器。 Lighttpd 1.4.56 到 1.4.58 版本存在安全漏洞，该漏洞源于 connections.c 中的 connection_read_header_more 有一个拼写错误，会破坏对大型标头的多个读取操作的使用。远程攻击者利用该漏洞可导致拒绝服务（卡住的连接消耗 CPU）。
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)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
- n/a n/a -

II. Public POCs for CVE-2022-30780

# POC Description Source Link Shenlong Link
1 CVE-2022-30780 - lighttpd remote denial of service https://github.com/p0dalirius/CVE-2022-30780-lighttpd-denial-of-service POC Details
2 Lighttpd CVE-2022-30780 checker https://github.com/xiw1ll/CVE-2022-30780_Checker POC Details
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III. Intelligence Information for CVE-2022-30780

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Other References for CVE-2022-30780 (4)

Same Patch Batch · n/a · 2022-06-11 · 4 CVEs total

CVE-2021-44266 GUnet Open eClass Platform 跨站脚本漏洞
CVE-2021-41502 Subrion CMS 跨站脚本漏洞
CVE-2021-41738 Zeroshell 操作系统命令注入漏洞

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2022-30780

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