CVE-2023-31096
Broadcom LSI PCI-SV92EX Soft Modem Local Privilege Escalation Vulnerability
Description
An issue was discovered in Broadcom) LSI PCI-SV92EX Soft Modem Kernel Driver through 2.2.100.1 (aka AGRSM64.sys). There is Local Privilege Escalation to SYSTEM via a Stack Overflow in RTLCopyMemory (IOCTL 0x1b2150). An attacker can exploit this to elevate privileges from a medium-integrity process to SYSTEM. This can also be used to bypass kernel-level protections such as AV or PPL, because exploit code runs with high-integrity privileges and can be used in coordinated BYOVD (bring your own vulnerable driver) ransomware campaigns.
INFO
Published Date :
Oct. 10, 2023, 7:15 p.m.
Last Modified :
Oct. 18, 2023, 8:27 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
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-2023-31096.
| URL | Resource |
|---|---|
| https://cschwarz1.github.io/posts/0x04/ | Exploit Third Party Advisory |
| https://www.broadcom.com | Not Applicable |
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-2023-31096 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-31096 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]
Oct. 18, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://cschwarz1.github.io/posts/0x04/ No Types Assigned https://cschwarz1.github.io/posts/0x04/ Exploit, Third Party Advisory Changed Reference Type https://www.broadcom.com No Types Assigned https://www.broadcom.com Not Applicable Added CWE NIST CWE-787 Added CPE Configuration AND OR *cpe:2.3:o:broadcom:lsi_pci-sv92ex_firmware:*:*:*:*:*:*:*:* versions up to (including) 2.2.100.1 OR cpe:2.3:h:broadcom:lsi_pci-sv92ex:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-31096 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-2023-31096
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} -0.02%
score
0.05669
percentile