CVE-2016-2123
Samba Integer Wrap Remote Privilege Escalation Vulnerability
Description
A flaw was found in samba versions 4.0.0 to 4.5.2. The Samba routine ndr_pull_dnsp_name contains an integer wrap problem, leading to an attacker-controlled memory overwrite. ndr_pull_dnsp_name parses data from the Samba Active Directory ldb database. Any user who can write to the dnsRecord attribute over LDAP can trigger this memory corruption. By default, all authenticated LDAP users can write to the dnsRecord attribute on new DNS objects. This makes the defect a remote privilege escalation.
INFO
Published Date :
Nov. 1, 2018, 1:29 p.m.
Last Modified :
Feb. 8, 2024, 2:10 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
2.8
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-2016-2123.
| URL | Resource |
|---|---|
| http://www.securityfocus.com/bid/94970 | Third Party Advisory VDB Entry |
| http://www.securitytracker.com/id/1037493 | Third Party Advisory VDB Entry |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-2123 | Issue Tracking |
| https://www.samba.org/samba/security/CVE-2016-2123.html | Patch 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-2016-2123 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2016-2123 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 -
Modified Analysis by [email protected]
Feb. 08, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Feb. 12, 2023
Action Type Old Value New Value Removed CVSS V2 Red Hat, Inc. (AV:A/AC:M/Au:N/C:C/I:C/A:C) Removed CVSS V2 Reason AC-Assessment performed prior to CVMAP efforts Removed CVSS V2 Reason AV-Assessment performed prior to CVMAP efforts Removed CVSS V2 Reason C-Assessment performed prior to CVMAP efforts Removed CVSS V2 Reason Au-Assessment performed prior to CVMAP efforts Removed CVSS V2 Reason A-Assessment performed prior to CVMAP efforts Removed CVSS V2 Reason I-Assessment performed prior to CVMAP efforts -
Modified Analysis by [email protected]
Aug. 29, 2022
Action Type Old Value New Value Removed CVSS V3 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed CPE Configuration OR *cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* versions from (including) 4.0.0 up to (including) 4.5.2 OR *cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* versions from (including) 4.0.0 up to (including) 4.0.26 *cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* versions from (including) 4.1.0 up to (including) 4.1.23 *cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* versions from (including) 4.2.0 up to (including) 4.2.14 *cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* versions from (including) 4.3.0 up to (excluding) 4.3.13 *cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* versions from (including) 4.4.0 up to (excluding) 4.4.8 *cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* versions from (including) 4.5.0 up to (excluding) 4.5.3 -
CVE Modified by [email protected]
Mar. 11, 2020
Action Type Old Value New Value Added CVSS V2 Red Hat, Inc. (AV:A/AC:M/Au:N/C:C/I:C/A:C) -
CVE Modified by [email protected]
Oct. 09, 2019
Action Type Old Value New Value Added CVSS V3 Red Hat, Inc. AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE Red Hat, Inc. CWE-122 -
Initial Analysis by [email protected]
Jan. 29, 2019
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:S/C:P/I:P/A:P) Added CVSS V3 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type http://www.securityfocus.com/bid/94970 No Types Assigned http://www.securityfocus.com/bid/94970 Third Party Advisory, VDB Entry Changed Reference Type https://www.samba.org/samba/security/CVE-2016-2123.html No Types Assigned https://www.samba.org/samba/security/CVE-2016-2123.html Patch, Vendor Advisory Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-2123 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-2123 Issue Tracking Changed Reference Type http://www.securitytracker.com/id/1037493 No Types Assigned http://www.securitytracker.com/id/1037493 Third Party Advisory, VDB Entry Added CWE CWE-119 Added CPE Configuration OR *cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* versions from (including) 4.0.0 up to (including) 4.5.2 -
CVE Modified by [email protected]
Nov. 02, 2018
Action Type Old Value New Value Added Reference http://www.securitytracker.com/id/1037493 [No Types Assigned] Added Reference http://www.securityfocus.com/bid/94970 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2016-2123 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-2016-2123
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
94.14 }} -0.69%
score
0.99201
percentile