UBUNTU-CVE-2022-39955

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Source
https://ubuntu.com/security/CVE-2022-39955
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-39955.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2022-39955
Related
Published
2022-09-20T07:15:00Z
Modified
2024-10-15T14:10:10Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

The OWASP ModSecurity Core Rule Set (CRS) is affected by a partial rule set bypass by submitting a specially crafted HTTP Content-Type header field that indicates multiple character encoding schemes. A vulnerable back-end can potentially be exploited by declaring multiple Content-Type "charset" names and therefore bypassing the configurable CRS Content-Type header "charset" allow list. An encoded payload can bypass CRS detection this way and may then be decoded by the backend. The legacy CRS versions 3.0.x and 3.1.x are affected, as well as the currently supported versions 3.2.1 and 3.3.2. Integrators and users are advised to upgrade to 3.2.2 and 3.3.3 respectively.

References

Affected packages

Ubuntu:Pro:16.04:LTS / modsecurity-crs

Package

Name
modsecurity-crs
Purl
pkg:deb/ubuntu/modsecurity-crs?arch=src?distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.2.9-1

Ecosystem specific 

{
    "ubuntu_priority": "low"
}

Ubuntu:Pro:18.04:LTS / modsecurity-crs

Package

Name
modsecurity-crs
Purl
pkg:deb/ubuntu/modsecurity-crs?arch=src?distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.0.0-3
3.0.2-1

Ecosystem specific 

{
    "ubuntu_priority": "low"
}

Ubuntu:20.04:LTS / modsecurity-crs

Package

Name
modsecurity-crs
Purl
pkg:deb/ubuntu/modsecurity-crs?arch=src?distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.1.1-1
3.2.0-1

Ecosystem specific 

{
    "ubuntu_priority": "low"
}

Ubuntu:22.04:LTS / modsecurity-crs

Package

Name
modsecurity-crs
Purl
pkg:deb/ubuntu/modsecurity-crs?arch=src?distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.3.0-1
3.3.2-1

Ecosystem specific 

{
    "ubuntu_priority": "low"
}

Ubuntu:24.10 / modsecurity-crs

Package

Name
modsecurity-crs
Purl
pkg:deb/ubuntu/modsecurity-crs?arch=src?distro=oracular

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.3.5-2

Ecosystem specific 

{
    "ubuntu_priority": "low"
}

Ubuntu:24.04:LTS / modsecurity-crs

Package

Name
modsecurity-crs
Purl
pkg:deb/ubuntu/modsecurity-crs?arch=src?distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.3.5-1
3.3.5-2

Ecosystem specific 

{
    "ubuntu_priority": "low"
}