A security researcher with Twitter alias SandboxEscaper—who two months ago publicly dropped a zero-day exploit for Microsoft Windows Task Scheduler—has yesterday released another proof-of-concept exploit for a new Windows zero-day vulnerability.
SandboxEscaper posted a link to a Github page hosting a proof-of-concept (PoC) exploit for the vulnerability that appears to be a privilege escalation flaw residing in Microsoft Data Sharing (dssvc.dll).
The Data Sharing Service is a local service that runs as LocalSystem account with extensive privileges and provides data brokering between applications.
The flaw could allow a low-privileged attacker to elevate their privileges on a target system, though the PoC exploit code (deletebug.exe) released by the researcher only allows a low privileged user to delete critical system files—that otherwise would only be possible via admin level privileges.
images from Hacker News