CVE-2022-23548
Discourse ReDoS Attack in Posting Processing
Description
Discourse is an option source discussion platform. Prior to version 2.8.14 on the `stable` branch and version 2.9.0.beta16 on the `beta` and `tests-passed` branches, parsing posts can be susceptible to regular expression denial of service (ReDoS) attacks. This issue is patched in versions 2.8.14 and 2.9.0.beta16. There are no known workarounds.
INFO
Published Date :
Jan. 5, 2023, 7:15 p.m.
Last Modified :
May 16, 2023, 11:15 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
2.8
Public PoC/Exploit Available at Github
CVE-2022-23548 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2022-23548.
| URL | Resource |
|---|---|
| https://github.com/discourse/discourse/pull/19737 | Patch Third Party Advisory |
| https://github.com/discourse/discourse/security/advisories/GHSA-7rw2-f4x7-7pxf | Third Party Advisory |
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).
test 反向辣鸡数据投放 CVE-2022-23305 工具 利用 教程 Exploit POC
cve-2020-
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-23548 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-23548 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 -
Reanalysis by [email protected]
May. 16, 2023
Action Type Old Value New Value Removed CWE NIST CWE-79 Added CWE NIST CWE-1333 -
Modified Analysis by [email protected]
Jan. 18, 2023
Action Type Old Value New Value Removed CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H -
CVE Modified by [email protected]
Jan. 17, 2023
Action Type Old Value New Value Changed Description Discourse is an option source discussion platform. Prior to version 2.8.14 on the `stable` branch and version 2.9.0.beta16 on the `beta` and `tests-passed` branches, parsing posts can be susceptible to XSS attacks. This issue is patched in versions 2.8.14 and 2.9.0.beta16. There are no known workarounds. Discourse is an option source discussion platform. Prior to version 2.8.14 on the `stable` branch and version 2.9.0.beta16 on the `beta` and `tests-passed` branches, parsing posts can be susceptible to regular expression denial of service (ReDoS) attacks. This issue is patched in versions 2.8.14 and 2.9.0.beta16. There are no known workarounds. Removed CWE GitHub, Inc. CWE-400 Added CWE GitHub, Inc. CWE-1333 Removed CWE Reason CWE-400 / More specific CWE option available -
Initial Analysis by [email protected]
Jan. 12, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N Changed Reference Type https://github.com/discourse/discourse/pull/19737 No Types Assigned https://github.com/discourse/discourse/pull/19737 Patch, Third Party Advisory Changed Reference Type https://github.com/discourse/discourse/security/advisories/GHSA-7rw2-f4x7-7pxf No Types Assigned https://github.com/discourse/discourse/security/advisories/GHSA-7rw2-f4x7-7pxf Third Party Advisory Added CWE NIST CWE-79 Added CPE Configuration OR *cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:* versions up to (excluding) 2.8.14 *cpe:2.3:a:discourse:discourse:2.9.0:beta1:*:*:*:*:*:* *cpe:2.3:a:discourse:discourse:2.9.0:beta10:*:*:*:*:*:* *cpe:2.3:a:discourse:discourse:2.9.0:beta11:*:*:*:*:*:* *cpe:2.3:a:discourse:discourse:2.9.0:beta12:*:*:*:*:*:* *cpe:2.3:a:discourse:discourse:2.9.0:beta13:*:*:*:*:*:* *cpe:2.3:a:discourse:discourse:2.9.0:beta14:*:*:*:*:*:* *cpe:2.3:a:discourse:discourse:2.9.0:beta2:*:*:*:*:*:* *cpe:2.3:a:discourse:discourse:2.9.0:beta3:*:*:*:*:*:* *cpe:2.3:a:discourse:discourse:2.9.0:beta4:*:*:*:*:*:* *cpe:2.3:a:discourse:discourse:2.9.0:beta5:*:*:*:*:*:* *cpe:2.3:a:discourse:discourse:2.9.0:beta6:*:*:*:*:*:* *cpe:2.3:a:discourse:discourse:2.9.0:beta7:*:*:*:*:*:* *cpe:2.3:a:discourse:discourse:2.9.0:beta8:*:*:*:*:*:* *cpe:2.3:a:discourse:discourse:3.0.0:beta15:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-23548 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-2022-23548
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.05 }} 0.00%
score
0.22098
percentile