CVE-2023-42669
Samba rpcecho Denial of Service Vulne
Description
A vulnerability was found in Samba's "rpcecho" development server, a non-Windows RPC server used to test Samba's DCE/RPC stack elements. This vulnerability stems from an RPC function that can be blocked indefinitely. The issue arises because the "rpcecho" service operates with only one worker in the main RPC task, allowing calls to the "rpcecho" server to be blocked for a specified time, causing service disruptions. This disruption is triggered by a "sleep()" call in the "dcesrv_echo_TestSleep()" function under specific conditions. Authenticated users or attackers can exploit this vulnerability to make calls to the "rpcecho" server, requesting it to block for a specified duration, effectively disrupting most services and leading to a complete denial of service on the AD DC. The DoS affects all other services as "rpcecho" runs in the main RPC task.
INFO
Published Date :
Nov. 6, 2023, 7:15 a.m.
Last Modified :
Sept. 16, 2024, 3:15 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
2.8
Affected Products
The following products are affected by CVE-2023-42669
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-2023-42669.
| URL | Resource |
|---|---|
| https://access.redhat.com/errata/RHSA-2023:6209 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2023:6744 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2023:7371 | |
| https://access.redhat.com/errata/RHSA-2023:7408 | |
| https://access.redhat.com/errata/RHSA-2023:7464 | |
| https://access.redhat.com/errata/RHSA-2023:7467 | |
| https://access.redhat.com/security/cve/CVE-2023-42669 | Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=2241884 | Issue Tracking |
| https://bugzilla.samba.org/show_bug.cgi?id=15474 | Issue Tracking |
| https://www.samba.org/samba/security/CVE-2023-42669.html | Vendor 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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-42669 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-42669 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]
Sep. 16, 2024
Action Type Old Value New Value Removed Reference Red Hat, Inc. https://security.netapp.com/advisory/ntap-20231124-0002/ -
CVE Modified by [email protected]
May. 23, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 24, 2023
Action Type Old Value New Value Added Reference Red Hat, Inc. https://security.netapp.com/advisory/ntap-20231124-0002/ [No types assigned] -
CVE Modified by [email protected]
Nov. 22, 2023
Action Type Old Value New Value Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2023:7464 [No types assigned] Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2023:7467 [No types assigned] -
CVE Modified by [email protected]
Nov. 21, 2023
Action Type Old Value New Value Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2023:7371 [No types assigned] Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2023:7408 [No types assigned] -
Initial Analysis by [email protected]
Nov. 14, 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:H Changed Reference Type https://access.redhat.com/errata/RHSA-2023:6209 No Types Assigned https://access.redhat.com/errata/RHSA-2023:6209 Third Party Advisory Changed Reference Type https://access.redhat.com/errata/RHSA-2023:6744 No Types Assigned https://access.redhat.com/errata/RHSA-2023:6744 Third Party Advisory Changed Reference Type https://access.redhat.com/security/cve/CVE-2023-42669 No Types Assigned https://access.redhat.com/security/cve/CVE-2023-42669 Third Party Advisory Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=2241884 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=2241884 Issue Tracking Changed Reference Type https://bugzilla.samba.org/show_bug.cgi?id=15474 No Types Assigned https://bugzilla.samba.org/show_bug.cgi?id=15474 Issue Tracking Changed Reference Type https://www.samba.org/samba/security/CVE-2023-42669.html No Types Assigned https://www.samba.org/samba/security/CVE-2023-42669.html Vendor Advisory Added CWE NIST NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* versions from (including) 4.0.0 up to (excluding) 4.17.12 *cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* versions from (including) 4.18.0 up to (excluding) 4.18.8 *cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* versions from (including) 4.19.0 up to (excluding) 4.19.1 Added CPE Configuration OR *cpe:2.3:a:redhat:storage:3.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_eus:9.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:9.0_s390x:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:9.0_s390x:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:9.0_ppc64le:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:9.0_ppc64le:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2023:6744 [No types assigned] -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added CWE Red Hat, Inc. CWE-400
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-42669 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-2023-42669
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.08 }} -0.01%
score
0.34313
percentile