Advisory Details

September 27th, 2024

Lenovo Service Bridge Command Injection Remote Code Execution Vulnerability

ZDI-24-1310
ZDI-CAN-23010

CVE ID CVE-2024-4696
CVSS SCORE 7.5, AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
AFFECTED VENDORS Lenovo
AFFECTED PRODUCTS Service Bridge
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Lenovo Service Bridge. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the LscShim module. When parsing a crafted URL, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of the current user.

ADDITIONAL DETAILS Lenovo has issued an update to correct this vulnerability. More details can be found at:
https://support.lenovo.com/ca/en/product_security/ps500631-lenovo-service-bridge-vulnerability
DISCLOSURE TIMELINE
  • 2024-05-06 - Vulnerability reported to vendor
  • 2024-09-27 - Coordinated public release of advisory
  • 2024-09-27 - Advisory Updated
CREDIT Darrel Huang
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