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Rewterz Threat Alert – GCleaner Malware – Active IOCs
January 18, 2023
Rewterz Threat Alert – DarkComet RAT (Remote Access Trojan) – Active IOCs
January 18, 2023

Rewterz Threat Advisory – Multiple Apache HTTP Server Vulnerabilities

January 18, 2023

Severity

Medium

Analysis Summary

CVE-2022-37436 CVSS:6.1

Apache HTTP Server is vulnerable to HTTP response splitting attacks, caused by the use of a malicious backend by mod_proxy. A remote attacker could exploit this vulnerability to inject arbitrary HTTP headers and cause the server to return a split response, once the URL is clicked. This would allow the attacker to perform further attacks, such as Web cache poisoning or cross-site scripting, and possibly obtain sensitive information.

CVE-2022-36760 CVSS:7.5

Apache HTTP Server is vulnerable to HTTP request smuggling, caused by an inconsistent interpretation of HTTP Requests vulnerability in mod_proxy_ajp. An attacker could exploit this vulnerability to smuggle requests to the AJP server it forwards requests to.

CVE-2006-20001 CVSS:5.3

Apache HTTP Server is vulnerable to a denial of service, caused by an out-of-bounds read or write of zero in mod_dav. By sending a specially crafted If: request header, an attacker could exploit this vulnerability to cause the process to crash.

Impact

  • Unauthorized Access
  • Denial of Service

Indicators Of Compromise

CVE

  • CVE-2022-37436
  • CVE-2022-36760
  • CVE-2006-20001

Affected Vendors

Apache

Affected Products

  • Apache HTTP Server 2.4.0
  • Apache HTTP Server 2.4.1
  • Apache HTTP Server 2.4.2
  • Apache HTTP Server 2.4.18
  • Apache HTTP Server 2.4.20
  • Apache HTTP Server 2.4.23
  • Apache HTTP Server 2.4.29
  • Apache HTTP Server 2.2.24

Remediation

Upgrade to the latest version of Apache HTTP Server, available from the Apache Web site.

Apache Web site

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