CVE-2023-27491
"Envoy HTTP/1 Compliance Bypass Vulnerability"
Description
Envoy is an open source edge and service proxy designed for cloud-native applications. Compliant HTTP/1 service should reject malformed request lines. Prior to versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9, There is a possibility that non compliant HTTP/1 service may allow malformed requests, potentially leading to a bypass of security policies. This issue is fixed in versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9.
INFO
Published Date :
April 4, 2023, 7:15 p.m.
Last Modified :
April 11, 2023, 2:43 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.2
Exploitability Score :
3.9
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-2023-27491
.
URL | Resource |
---|---|
https://datatracker.ietf.org/doc/html/rfc9113#section-8.3 | Not Applicable |
https://datatracker.ietf.org/doc/html/rfc9114#section-4.3.1 | Not Applicable |
https://github.com/envoyproxy/envoy/security/advisories/GHSA-5jmv-cw9p-f9rp | Exploit Vendor Advisory |
https://www.rfc-editor.org/rfc/rfc9110#section-5.6.2 | Not Applicable |
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-2023-27491
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-27491
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 -
Initial Analysis by [email protected]
Apr. 11, 2023
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:N Changed Reference Type https://datatracker.ietf.org/doc/html/rfc9113#section-8.3 No Types Assigned https://datatracker.ietf.org/doc/html/rfc9113#section-8.3 Not Applicable Changed Reference Type https://datatracker.ietf.org/doc/html/rfc9114#section-4.3.1 No Types Assigned https://datatracker.ietf.org/doc/html/rfc9114#section-4.3.1 Not Applicable Changed Reference Type https://github.com/envoyproxy/envoy/security/advisories/GHSA-5jmv-cw9p-f9rp No Types Assigned https://github.com/envoyproxy/envoy/security/advisories/GHSA-5jmv-cw9p-f9rp Exploit, Vendor Advisory Changed Reference Type https://www.rfc-editor.org/rfc/rfc9110#section-5.6.2 No Types Assigned https://www.rfc-editor.org/rfc/rfc9110#section-5.6.2 Not Applicable Added CWE NIST CWE-444 Added CPE Configuration OR *cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* versions up to (excluding) 1.22.9 *cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* versions from (including) 1.23.0 up to (excluding) 1.23.6 *cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* versions from (including) 1.24.0 up to (excluding) 1.24.4 *cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:* versions from (including) 1.25.0 up to (excluding) 1.25.3
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-27491
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-2023-27491
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.13 }} 0.02%
score
0.49491
percentile