CVE-2023-25566
"Windows GSS-NTLMSSP NTLM Authentication Domain Username Memory Leak DoS Vulnerability"
Description
GSS-NTLMSSP is a mechglue plugin for the GSSAPI library that implements NTLM authentication. Prior to version 1.2.0, a memory leak can be triggered when parsing usernames which can trigger a denial-of-service. The domain portion of a username may be overridden causing an allocated memory area the size of the domain name to be leaked. An attacker can leak memory via the main `gss_accept_sec_context` entry point, potentially causing a denial-of-service. This issue is fixed in version 1.2.0.
INFO
Published Date :
Feb. 14, 2023, 6:15 p.m.
Last Modified :
Nov. 21, 2024, 7:49 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
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-2023-25566.
| URL | Resource |
|---|---|
| https://github.com/gssapi/gss-ntlmssp/commit/8660fb16474054e692a596e9c79670cd4d3954f4 | Patch Third Party Advisory |
| https://github.com/gssapi/gss-ntlmssp/releases/tag/v1.2.0 | Third Party Advisory |
| https://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-mfm4-6g58-jw74 | Third Party Advisory |
| https://github.com/gssapi/gss-ntlmssp/commit/8660fb16474054e692a596e9c79670cd4d3954f4 | Patch Third Party Advisory |
| https://github.com/gssapi/gss-ntlmssp/releases/tag/v1.2.0 | Third Party Advisory |
| https://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-mfm4-6g58-jw74 | 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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-25566 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-25566 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.
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CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://github.com/gssapi/gss-ntlmssp/commit/8660fb16474054e692a596e9c79670cd4d3954f4 Added Reference https://github.com/gssapi/gss-ntlmssp/releases/tag/v1.2.0 Added Reference https://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-mfm4-6g58-jw74 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Changed Description GSS-NTLMSSP is a mechglue plugin for the GSSAPI library that implements NTLM authentication. Prior to version 1.2.0, a memory leak can be triggered when parsing usernames which can trigger a denial-of-service. The domain portion of a username may be overridden causing an allocated memory area the size of the domain name to be leaked. An attacker can leak memory via the main `gss_accept_sec_context` entry point, potentially causing a denial-of-service. This issue is fixed in version 1.2.0. GSS-NTLMSSP is a mechglue plugin for the GSSAPI library that implements NTLM authentication. Prior to version 1.2.0, a memory leak can be triggered when parsing usernames which can trigger a denial-of-service. The domain portion of a username may be overridden causing an allocated memory area the size of the domain name to be leaked. An attacker can leak memory via the main `gss_accept_sec_context` entry point, potentially causing a denial-of-service. This issue is fixed in version 1.2.0. -
Initial Analysis by [email protected]
Feb. 22, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://github.com/gssapi/gss-ntlmssp/commit/8660fb16474054e692a596e9c79670cd4d3954f4 No Types Assigned https://github.com/gssapi/gss-ntlmssp/commit/8660fb16474054e692a596e9c79670cd4d3954f4 Patch, Third Party Advisory Changed Reference Type https://github.com/gssapi/gss-ntlmssp/releases/tag/v1.2.0 No Types Assigned https://github.com/gssapi/gss-ntlmssp/releases/tag/v1.2.0 Third Party Advisory Changed Reference Type https://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-mfm4-6g58-jw74 No Types Assigned https://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-mfm4-6g58-jw74 Third Party Advisory Added CWE NIST CWE-401 Added CPE Configuration OR *cpe:2.3:a:gss-ntlmssp_project:gss-ntlmssp:*:*:*:*:*:*:*:* versions up to (excluding) 1.2.0
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-25566 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-2023-25566
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.12 }} 0.01%
score
0.46312
percentile