CVE-2023-25564
Apache GSS-NTLMSSP NTLM Denial of Service Memory Corruption
Description
GSS-NTLMSSP is a mechglue plugin for the GSSAPI library that implements NTLM authentication. Prior to version 1.2.0, memory corruption can be triggered when decoding UTF16 strings. The variable `outlen` was not initialized and could cause writing a zero to an arbitrary place in memory if `ntlm_str_convert()` were to fail, which would leave `outlen` uninitialized. This can lead to a denial of service if the write hits unmapped memory or randomly corrupts a byte in the application memory space. This vulnerability can trigger an out-of-bounds write, leading to memory corruption. This vulnerability can be triggered via the main `gss_accept_sec_context` entry point. This issue is fixed in version 1.2.0.
INFO
Published Date :
Feb. 14, 2023, 6:15 p.m.
Last Modified :
Feb. 22, 2023, 6:39 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
4.2
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2023-25564 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-2023-25564.
| URL | Resource |
|---|---|
| https://github.com/gssapi/gss-ntlmssp/commit/c753000eb31835c0664e528fbc99378ae0cbe950 | 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-r85x-q5px-9xfq | 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).
None
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The following list is the news that have been mention
CVE-2023-25564 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-25564 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 -
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:L/A:H Changed Reference Type https://github.com/gssapi/gss-ntlmssp/commit/c753000eb31835c0664e528fbc99378ae0cbe950 No Types Assigned https://github.com/gssapi/gss-ntlmssp/commit/c753000eb31835c0664e528fbc99378ae0cbe950 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-r85x-q5px-9xfq No Types Assigned https://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-r85x-q5px-9xfq Third Party Advisory Added CWE NIST CWE-787 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-2023-25564 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-2023-25564
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
0.47125
percentile