Advisory Details

April 24th, 2023

SolarWinds Network Performance Monitor TFTP Link Following Local Privilege Escalation Vulnerability

ZDI-23-458
ZDI-CAN-19902

CVE ID CVE-2022-47505
CVSS SCORE 7.8, AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS SolarWinds
AFFECTED PRODUCTS Network Performance Monitor
VULNERABILITY DETAILS

This vulnerability allows local attackers to escalate privileges on affected installations of SolarWinds Network Performance Monitor. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

The specific flaw exists within the configuration of the TFTP Server service. By creating a junction, an attacker can abuse the service to create or read arbitrary files. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM.

ADDITIONAL DETAILS SolarWinds has issued an update to correct this vulnerability. More details can be found at:
https://www.solarwinds.com/trust-center/security-advisories/cve-2022-47505
DISCLOSURE TIMELINE
  • 2022-12-22 - Vulnerability reported to vendor
  • 2023-04-24 - Coordinated public release of advisory
CREDIT Piotr Bazydlo (@chudypb) of Trend Micro Zero Day Initiative
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