Lucene search

K
kasperskyKaspersky LabKLA12485
HistoryMar 14, 2022 - 12:00 a.m.

KLA12485 Multiple vulnerabilities in Apache HTTP Server

2022-03-1400:00:00
Kaspersky Lab
threats.kaspersky.com
40
apache http server
denial of service
security restrictions bypass
arbitrary code execution
cve-2022-22721
cve-2022-22720
cve-2022-23943
mod_sed
mod_lua

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

10

Confidence

High

EPSS

0.314

Percentile

97.0%

Multiple vulnerabilities were found in Apache HTTP Server. Malicious users can exploit these vulnerabilities to cause denial of service, bypass security restrictions, execute arbitrary code.

Below is a complete list of vulnerabilities:

  1. Integer overflow vulnerability in LimitXMLRequestBody can be exploited to cause denial of service.
  2. HTTP request smuggling vulnerability can be exploited to bypass security restrictions.
  3. Out-of-bounds Write vulnerability in mod_sed can be exploited to cause denial of service.
  4. Use of uninitialized value of in mod_lua can be exploited remotely via special crafted request to cause denial of service.

Original advisories

Fixed in Apache HTTP Server 2.4.53

Exploitation

Malware exists for this vulnerability. Usually such malware is classified as Exploit. More details.

Related products

Apache-HTTP-Server

CVE list

CVE-2022-22721 critical

CVE-2022-22720 critical

CVE-2022-23943 critical

CVE-2022-22719 critical

Solution

Update to the latest version

Download Apache HTTP Server

Impacts

  • ACE

Arbitrary code execution. Exploitation of vulnerabilities with this impact can lead to executing by abuser any code or commands at vulnerable machine or process.

  • OSI

Obtain sensitive information. Exploitation of vulnerabilities with this impact can lead to capturing by abuser information, critical for user or system.

  • DoS

Denial of service. Exploitation of vulnerabilities with this impact can lead to loss of system availability or critical functional fault.

  • SB

Security bypass. Exploitation of vulnerabilities with this impact can lead to performing actions restricted by current security settings.

  • SUI

Spoof user interface. Exploitation of vulnerabilities with this impact can lead to changes in user interface to beguile user into inaccurate behavior.

Affected Products

  • Apache HTTP Server 2.4.x earlier than 2.4.53

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

10

Confidence

High

EPSS

0.314

Percentile

97.0%