CVE-2022-39955
Apache ModSecurity charset Header Bypass Vulnerability
Description
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.
INFO
Published Date :
Sept. 20, 2022, 7:15 a.m.
Last Modified :
Nov. 7, 2023, 3:50 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2022-39955
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2022-39955.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-39955 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-39955 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference Switzerland Government Common Vulnerability Program https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PD56EAYNGB6E6QQH62LAYCONOP6OH5DZ/ [No types assigned] Added Reference Switzerland Government Common Vulnerability Program https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YPQ6CCMX3MU4A7MTCGQJA7VMJW3IQDXV/ [No types assigned] Added Reference Switzerland Government Common Vulnerability Program https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HL2L2GF7GOCWPMJZDUE5OXDSXHGG3XUJ/ [No types assigned] Removed Reference Switzerland Government Common Vulnerability Program https://lists.fedoraproject.org/archives/list/[email protected]/message/PD56EAYNGB6E6QQH62LAYCONOP6OH5DZ/ Removed Reference Switzerland Government Common Vulnerability Program https://lists.fedoraproject.org/archives/list/[email protected]/message/YPQ6CCMX3MU4A7MTCGQJA7VMJW3IQDXV/ Removed Reference Switzerland Government Common Vulnerability Program https://lists.fedoraproject.org/archives/list/[email protected]/message/HL2L2GF7GOCWPMJZDUE5OXDSXHGG3XUJ/ -
CVE Modified by [email protected]
May. 21, 2023
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202305-25 [No Types Assigned] -
Modified Analysis by [email protected]
Feb. 16, 2023
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2023/01/msg00033.html No Types Assigned https://lists.debian.org/debian-lts-announce/2023/01/msg00033.html Mailing List, Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jan. 30, 2023
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2023/01/msg00033.html [No Types Assigned] -
Modified Analysis by [email protected]
Jan. 20, 2023
Action Type Old Value New Value Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/HL2L2GF7GOCWPMJZDUE5OXDSXHGG3XUJ/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/HL2L2GF7GOCWPMJZDUE5OXDSXHGG3XUJ/ Mailing List, Third Party Advisory Changed CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* OR *cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Nov. 14, 2022
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/HL2L2GF7GOCWPMJZDUE5OXDSXHGG3XUJ/ [No Types Assigned] -
Modified Analysis by [email protected]
Nov. 09, 2022
Action Type Old Value New Value Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/PD56EAYNGB6E6QQH62LAYCONOP6OH5DZ/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/PD56EAYNGB6E6QQH62LAYCONOP6OH5DZ/ Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/YPQ6CCMX3MU4A7MTCGQJA7VMJW3IQDXV/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/YPQ6CCMX3MU4A7MTCGQJA7VMJW3IQDXV/ Mailing List, Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Oct. 15, 2022
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/PD56EAYNGB6E6QQH62LAYCONOP6OH5DZ/ [No Types Assigned] Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/YPQ6CCMX3MU4A7MTCGQJA7VMJW3IQDXV/ [No Types Assigned] -
Initial Analysis by [email protected]
Sep. 21, 2022
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://coreruleset.org/20220919/crs-version-3-3-3-and-3-2-2-covering-several-cves/ No Types Assigned https://coreruleset.org/20220919/crs-version-3-3-3-and-3-2-2-covering-several-cves/ Patch, Vendor Advisory Added CWE NIST NVD-CWE-Other Added CPE Configuration OR *cpe:2.3:a:owasp:owasp_modsecurity_core_rule_set:*:*:*:*:*:*:*:* versions from (including) 3.0.0 up to (excluding) 3.2.2 *cpe:2.3:a:owasp:owasp_modsecurity_core_rule_set:*:*:*:*:*:*:*:* versions from (including) 3.3.0 up to (excluding) 3.3.3
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-39955 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-39955
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
1.25 }} 0.18%
score
0.85463
percentile