CVE-2023-32323
"Synapse Federation Disable Vulnerability"
Description
Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. A malicious user on a Synapse homeserver X with permission to create certain state events can disable outbound federation from X to an arbitrary homeserver Y. Synapse instances with federation disabled are not affected. In versions of Synapse up to and including 1.73, Synapse did not limit the size of `invite_room_state`, meaning that it was possible to create an arbitrarily large invite event. Synapse 1.74 refuses to create oversized `invite_room_state` fields. Server operators should upgrade to Synapse 1.74 or newer urgently.
INFO
Published Date :
May 26, 2023, 2:15 p.m.
Last Modified :
Sept. 18, 2023, 4:15 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
1.4
Exploitability Score :
3.1
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-2023-32323
.
URL | Resource |
---|---|
https://github.com/matrix-org/synapse/issues/14492 | Exploit Issue Tracking |
https://github.com/matrix-org/synapse/pull/14642 | Patch |
https://github.com/matrix-org/synapse/security/advisories/GHSA-f3wc-3vxv-xmvr | Mitigation Vendor Advisory |
https://lists.fedoraproject.org/archives/list/[email protected]/message/UJIJRP5ZH6B3KGFLHCAKR2IX2Y4Z25QD/ |
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-2023-32323
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-32323
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]
Sep. 18, 2023
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/UJIJRP5ZH6B3KGFLHCAKR2IX2Y4Z25QD/ [No Types Assigned] -
Initial Analysis by [email protected]
Jun. 02, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L Changed Reference Type https://github.com/matrix-org/synapse/issues/14492 No Types Assigned https://github.com/matrix-org/synapse/issues/14492 Exploit, Issue Tracking Changed Reference Type https://github.com/matrix-org/synapse/pull/14642 No Types Assigned https://github.com/matrix-org/synapse/pull/14642 Patch Changed Reference Type https://github.com/matrix-org/synapse/security/advisories/GHSA-f3wc-3vxv-xmvr No Types Assigned https://github.com/matrix-org/synapse/security/advisories/GHSA-f3wc-3vxv-xmvr Mitigation, Vendor Advisory Added CWE NIST CWE-20 Added CPE Configuration OR *cpe:2.3:a:matrix:synapse:*:*:*:*:*:*:*:* versions up to (excluding) 1.74.0
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-32323
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-2023-32323
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.06 }} 0.01%
score
0.28332
percentile