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.
References
Link | Resource |
---|---|
https://cschwarz1.github.io/posts/0x04/ | Exploit Third Party Advisory |
https://www.broadcom.com | Not Applicable |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: mitre
Published: 2023-10-10T00:00:00
Updated: 2023-10-10T18:05:34.641823
Reserved: 2023-04-24T00:00:00
Link: CVE-2023-31096
JSON object: View
NVD Information
Status : Analyzed
Published: 2023-10-10T19:15:09.530
Modified: 2023-10-18T20:27:16.947
Link: CVE-2023-31096
JSON object: View
Redhat Information
No data.
CWE